Acacia adunca
 - Acacia adunca Maiden [SYNONYM SPECIES 278910:9CMKF nidx=null parent=9CMXR]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281824:BVBH8 nidx=null parent=BSJHL]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281824:BVBH9 nidx=null parent=BSJVD]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281824:BVBHB nidx=null parent=BSJV5]
Acacia diptera
 - Acacia diptera Lindl. [SYNONYM SPECIES 278910:BSJR2 nidx=null parent=64BR6]
 + Acacia diptera Lindl. [AMBIGUOUS_SYNONYM SPECIES 281824:BVBHK nidx=null parent=BSKR2]
Acacia ericifolia var. crassa
 - Acacia ericifolia var. crassa E.Pritz. [SYNONYM VARIETY 278910:BSR83 nidx=null parent=BSK45]
 + Acacia ericifolia var. crassa E.Pritz. [AMBIGUOUS_SYNONYM VARIETY 281824:BVFG3 nidx=null parent=BSK45]
Acacia falcata
 - Acacia falcata Siebold ex Steud. [SYNONYM SPECIES 278910:BSG9M nidx=null parent=8P8M]
 + Acacia falcata Desf. [SYNONYM SPECIES 281824:BV8T9 nidx=null parent=BTTTX]
Acacia ferox
 - Acacia ferox M.Martens & Galeotti [SYNONYM SPECIES 278910:BSTD5 nidx=null parent=5RZMX]
 + Acacia ferox Benth. [AMBIGUOUS_SYNONYM SPECIES 281824:BVGGH nidx=null parent=BSKSJ]
Acacia glandulifera
 - Acacia glandulifera S.Watson [SYNONYM SPECIES 278910:BSRSZ nidx=null parent=BTCD8]
 - Acacia glandulifera Schinz [SYNONYM SPECIES 278910:BSRT2 nidx=null parent=BTCF3]
 + Acacia glandulifera sens. Burtt Davy [MISAPPLIED SPECIES 281824:BVFKJ nidx=null parent=BTCF9]
Acacia holstii
 - Acacia holstii Taub. [SYNONYM SPECIES 278910:BT7QL nidx=null parent=BTCDJ]
 + Acacia holstii Taub. [AMBIGUOUS_SYNONYM SPECIES 281824:BVS4G nidx=null parent=BTMCY]
Acacia horrida
 - Acacia horrida Span. [SYNONYM SPECIES 278910:BSJYK nidx=null parent=4WP2Y]
 + Acacia horrida (L.) Willd. [AMBIGUOUS_SYNONYM SPECIES 281824:BVBHQ nidx=null parent=BTCDK]
Acacia leptopetala
 - Acacia leptopetala sens. Benth. [MISAPPLIED SPECIES 278910:9JPPK nidx=null parent=BSGP9]
 + Acacia leptopetala sens. Benth. [MISAPPLIED SPECIES 281824:BVBHS nidx=null parent=BSGP9]
Acacia luederitzii
 - Acacia luederitzii Engl. [SYNONYM SPECIES 278910:BSG9T nidx=null parent=7F8VB]
 + Acacia luederitzii Engl. [AMBIGUOUS_SYNONYM SPECIES 281824:BV8TB nidx=null parent=BSGGZ]
Acacia osswaldii
 - Acacia osswaldii F.Muell. [SYNONYM SPECIES 278910:9JPS6 nidx=null parent=8PS5]
 + Acacia osswaldii F.Muell. [SYNONYM SPECIES 281824:BV8YX nidx=null parent=BSGPL]
Acacia pennata
 - Acacia pennata sens. Merr. & L.M.Perry [MISAPPLIED SPECIES 278910:9JPSL nidx=null parent=4WP39]
 + Acacia pennata sens. Merr. & L.M.Perry [MISAPPLIED SPECIES 281824:BVBJ2 nidx=null parent=BT93Q]
 + Acacia pennata sens. Miq. [MISAPPLIED SPECIES 281824:BVBJ3 nidx=null parent=BTDYC]
 + Acacia pennata sens. Craib [MISAPPLIED SPECIES 281824:BVBJ4 nidx=null parent=BT92Y]
Acacia pugioniformis
 - Acacia pugioniformis sens. H.L.Wendl. [MISAPPLIED SPECIES 278910:9JPTV nidx=null parent=8PWY]
 + Acacia pugioniformis sens. H.L.Wendl. [MISAPPLIED SPECIES 281824:BVBJ6 nidx=null parent=BSGB4]
Acacia pulchella var. hispidissima
 - Acacia pulchella var. hispidissima sens. Meisn. [MISAPPLIED VARIETY 278910:9KZMW nidx=null parent=5LWZD]
 + Acacia pulchella var. hispidissima sens. Meisn. [MISAPPLIED VARIETY 281824:BVFG7 nidx=null parent=BSRFL]
Acacia scandens
 - Acacia scandens (L.) Willd. [SYNONYM SPECIES 278910:9CN6W nidx=null parent=39X5N]
 - Acacia scandens Benth. [SYNONYM SPECIES 278910:9CN6X nidx=null parent=4WNZM]
 + Acacia scandens (L.) Willd. [SYNONYM SPECIES 281824:BVFKZ nidx=null parent=39X5N]
Acacia spathulata
 - Acacia spathulata Tausch [SYNONYM SPECIES 278910:9CN82 nidx=null parent=BSG5N]
 - Acacia spathulata F.Muell. ex Benth. [SYNONYM SPECIES 278910:BSKK6 nidx=null parent=8Q3F]
 + Acacia spathulata F.Muell. ex Benth. [AMBIGUOUS_SYNONYM SPECIES 281824:BVBJ7 nidx=null parent=BSKK8]
Acacia virchowiana
 - Acacia virchowiana Vatke & Hildebrandt [SYNONYM SPECIES 278910:BT7V5 nidx=null parent=5RZNC]
 + Acacia virchowiana Vatke & Hildebr. [AMBIGUOUS_SYNONYM SPECIES 281824:BVS4V nidx=null parent=BSKTK]
Acanthochitona balesae
 - Acanthochitona balesae R. T. Abbott, 1954 [SYNONYM SPECIES 278910:7PRWB nidx=null parent=7PZBX]
 + Acanthochitona balesae Abbott, 1954 [SYNONYM SPECIES 281824:64DSC nidx=null parent=7PZBX]
Acanthoderes (Psapharochrus) galapagoensis
 - Acanthoderes (Psapharochrus) galapagoensis [SYNONYM SPECIES 278910:BRQD7 nidx=null parent=BJHKY]
 + Acanthoderes (Psapharochrus) galapagoensis [SYNONYM SPECIES 281824:BVFP4 nidx=null parent=BJHKY]
Acanthohamingia paradolum
 - Acanthohamingia paradolum [SYNONYM SPECIES 278910:BFJ28 nidx=null parent=CDSL]
 + Acanthohamingia paradolum Fisher, 1946 [SYNONYM SPECIES 281824:BVFQ9 nidx=null parent=CDSL]
Acanthophorus (Tithoes) maculatus
 - Acanthophorus (Tithoes) maculatus [AMBIGUOUS_SYNONYM SPECIES 278910:BSSDV nidx=null parent=BLWYB]
 + Acanthophorus (Tithoes) maculatus [AMBIGUOUS_SYNONYM SPECIES 281824:BVFQL nidx=null parent=BK2CD]
 + Acanthophorus (Tithoes) maculatus [AMBIGUOUS_SYNONYM SPECIES 281824:BVFQN nidx=null parent=BLWYB]
Acanthostega
 - Acanthostega [ACCEPTED INFRAORDER 278910:85GD4 nidx=null]
 + Acanthostega Levinsen, 1902 [ACCEPTED INFRAORDER 281824:BVB55 nidx=null]
Acanthostegomorpha
 - Acanthostegomorpha Levinsen, 1902 [ACCEPTED OTHER 278910:8PRTV nidx=null]
 + Acanthostegomorpha Levinsen, 1902 [ACCEPTED SECTION_ZOOLOGY 281824:BVFHZ nidx=null]
Achyranthes repens
 - Achyranthes repens Elliott [SYNONYM SPECIES 278910:9XFFJ nidx=null parent=C9KQ]
 + Achyranthes repens Elliott [AMBIGUOUS_SYNONYM SPECIES 281824:99BM nidx=null parent=C9KQ]
Acleioprocta
 - Acleioprocta [SYNONYM OTHER 278910:BT7NC nidx=null parent=7NGMQ]
 + Acleioprocta [SYNONYM SECTION_ZOOLOGY 281824:BGXX3 nidx=null parent=7NGMQ]
Acleris brunneana
 - Acleris brunneana (Sheldon, 1930) [AMBIGUOUS_SYNONYM SPECIES 278910:BRFZJ nidx=null parent=64JY4]
 + Acleris brunneana (Sheldon, 1930) [AMBIGUOUS_SYNONYM SPECIES 281824:BVS5N nidx=null parent=9CVY]
 + Acleris brunneana (Sheldon, 1931) [AMBIGUOUS_SYNONYM SPECIES 281824:BVS5P nidx=null parent=9D2Z]
Acoelopelophila
 - Acoelopelophila Dörjes, 1968 [ACCEPTED GENUS 278910:9GDFF nidx=null]
 + Acoelopelophila Ceccolini & Cianferoni, 2022 [ACCEPTED GENUS 281824:BVRC5 nidx=null]
Acropora lavandulina
 - Acropora lavandulina (Michelin, 1840) [ACCEPTED SPECIES 278910:9P2W nidx=null]
 + Acropora lavandulina (Michelin, 1842) [ACCEPTED SPECIES 281824:BVFZM nidx=null]
Acrostomum stannii
 - Acrostomum stannii [SYNONYM SPECIES 278910:9QQ2 nidx=null parent=7F9QJ]
 + Acrostomum stannii (Grube, 1840) [SYNONYM SPECIES 281824:BVFZQ nidx=null parent=7F9QJ]
Acrotylus hottentottus
 - Acrotylus hottentottus [SYNONYM SPECIES 278910:8P4MR nidx=null parent=9RPT]
 + Acrotylus hottentottus Saussure, 1884 [SYNONYM SPECIES 281824:BVFZX nidx=null parent=9RPT]
Acrotylus humbertinus
 - Acrotylus humbertinus [SYNONYM SPECIES 278910:8PWLT nidx=null parent=64P4F]
 + Acrotylus humbertinus Saussure, 1884 [SYNONYM SPECIES 281824:BVFZY nidx=null parent=64P4F]
Acrotylus patrudis
 - Acrotylus patrudis [SYNONYM SPECIES 278910:8PWLW nidx=null parent=9RQF]
 + Acrotylus patrudis Herrich-Schäffer, 1838 [SYNONYM SPECIES 281824:BVFZZ nidx=null parent=9RQF]
Acyrthosiphon (Acyrthosiphon) ignotum
 - Acyrthosiphon (Acyrthosiphon) ignotum Mordvilko, 1914 [ACCEPTED SPECIES 278910:9WJ8 nidx=null]
 + Acyrthosiphon (Acyrthosiphon) ignotum Mordvilko, 1914 [ACCEPTED SPECIES 281824:BVG3N nidx=null]
Acyrthosiphon (Mirotarsus) cyparissiae
 - Acyrthosiphon (Mirotarsus) cyparissiae (Koch, 1855) [SYNONYM SPECIES 278910:8QVZH nidx=null parent=7GJGF]
 + Acyrthosiphon (Mirotarsus) cyparissiae (Koch, 1855) [SYNONYM SPECIES 281824:BVG39 nidx=null parent=7GJGF]
Adalaria albopapillosa
 - Adalaria albopapillosa Bergh, 1880 [SYNONYM SPECIES 278910:9WZ4 nidx=null parent=9WZC]
 + Adalaria albopapillosa (Dall, 1871) [SYNONYM SPECIES 281824:BVG4K nidx=null parent=9WZC]
Adiantum flabellum
 - Adiantum flabellum Fée ex Christ [AMBIGUOUS_SYNONYM SPECIES 278910:B92PY nidx=null parent=B92PV]
 + Adiantum flabellum Fée ex Christ [AMBIGUOUS_SYNONYM SPECIES 281824:BVG55 nidx=null parent=B92PV]
Aega basalis
 - Aega basalis Heller, 1868 [SYNONYM SPECIES 278910:64VG7 nidx=null parent=Y9TJ]
 + Aega basalis Heller, 1865 [SYNONYM SPECIES 281824:BVG5F nidx=null parent=BVKXX]
Aeolopus affinis
 - Aeolopus affinis [SYNONYM SPECIES 278910:8P4S4 nidx=null parent=5FGTS]
 + Aeolopus affinis (Bolívar, 1902) [SYNONYM SPECIES 281824:659MP nidx=null parent=5FGTS]
Allosuctobelba (Allosuctobelba) nova
 - Allosuctobelba (Allosuctobelba) nova (Krivolutsky, 1971) [ACCEPTED SPECIES 278910:8T8MF nidx=null]
 + Allosuctobelba (Allosuctobelba) nova (Krivolustky, 1971) [ACCEPTED SPECIES 281824:BZJG nidx=null]
Alonsoeae
 - Alonsoeae Barringer [SYNONYM UNRANKED 278910:KKG nidx=null parent=JNF]
 + Alonsoeae Baill. [SYNONYM UNRANKED 281824:BVBDN nidx=null parent=JNF]
Altingioideae
 - Altingioideae Reinsch [SYNONYM UNRANKED 278910:J4R nidx=null parent=68K]
 + Altingioideae J.Williams [SYNONYM UNRANKED 281824:BVB9X nidx=null parent=68K]
Alveolina (Glomalveolina) primaeva var. ludwigi
 - Alveolina (Glomalveolina) primaeva var. ludwigi Reichel, 1936 [SYNONYM VARIETY 278910:BTM7V nidx=null parent=BDQYG]
 + Alveolina (Glomalveolina) primaeva var. ludwigi Reichel, 1936 [SYNONYM VARIETY 281824:BW23H nidx=null parent=BDQYG]
Alzateoideae
 - Alzateoideae van Beusekom [SYNONYM UNRANKED 278910:J4T nidx=null parent=6233L]
 + Alzateoideae Beusekom [SYNONYM UNRANKED 281824:BVB9Z nidx=null parent=6233L]
Amazilia saucerrottei warscewiczi
 - Amazilia saucerrottei warscewiczi (Cabanis & Heine, 1860) [SYNONYM SUBSPECIES 278910:BTKF8 nidx=null parent=BNZP7]
 + Amazilia saucerrottei warscewiczi (Cabanis & Heine, 1860) [SYNONYM SUBSPECIES 281824:BVZ9W nidx=null parent=BNZP7]
Amblyomma hassalli
 - Amblyomma hassalli Neumann, 1899 [SYNONYM SPECIES 278910:5TZKK nidx=null parent=CMFS]
 + Amblyomma hassalli Marx & Neumann, 1899 [AMBIGUOUS_SYNONYM SPECIES 281824:BVGLJ nidx=null parent=CMJ2]
 + Amblyomma hassalli Neumann, 1899 [SYNONYM SPECIES 281824:BVGLK nidx=null parent=CMFS]
Amblystegium falcatum var. heteromallum
 - Amblystegium falcatum var. heteromallum De Not. [SYNONYM VARIETY 278910:9WFWR nidx=null parent=9M28C]
 + Amblystegium falcatum var. heteromallum De Not. ex Anzi [SYNONYM VARIETY 281824:BW27C nidx=null parent=9M28C]
Amblystegium irriguum subsp. fluviatile
 - Amblystegium irriguum subsp. fluviatile (Hedw.) Bouvet [SYNONYM SUBSPECIES 278910:9VPRW nidx=null parent=6MMFB]
 + Amblystegium irriguum subsp. fluviatile (Hedw.) Corb. [SYNONYM SUBSPECIES 281824:BVZF4 nidx=null parent=6MMFB]
Ambrosiaceae
 - Ambrosiaceae Martynov [SYNONYM UNRANKED 278910:7NFW8 nidx=null parent=622TP]
 + Ambrosiaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8H7 nidx=null parent=622TP]
Amphibiophytum dioicum
 - Amphibiophytum dioicum H. Karst. ex Hampe [SYNONYM SPECIES 278910:9RM5M nidx=null parent=53Q37]
 + Amphibiophytum dioicum H. Karst. [SYNONYM SPECIES 281824:BVSBJ nidx=null parent=53Q37]
Amphimerus pricei
 - Amphimerus pricei (Foster, 1939) Yamaguti, 1958 [ACCEPTED SPECIES 278910:BDR2B nidx=null]
 + Amphimerus pricei (Foster, 1939) Skrjabin & Petrov, 1950 [ACCEPTED SPECIES 281824:BVSBM nidx=null]
Amphipoea albo
 - Amphipoea albo Tutt [AMBIGUOUS_SYNONYM SPECIES 278910:95TYL nidx=null parent=D4WP]
 + Amphipoea albo Tutt, 1891 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBN nidx=null parent=D4WP]
 + Amphipoea albo Tutt [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBP nidx=null parent=D4WP]
 + Amphipoea albo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBQ nidx=null parent=92STR]
 + Amphipoea albo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBR nidx=null parent=D4WL]
 + Amphipoea albo Heydemann [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBS nidx=null parent=D4WL]
 + Amphipoea albo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBT nidx=null parent=D4WL]
 + Amphipoea albo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBV nidx=null parent=D4WL]
 + Amphipoea albo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBW nidx=null parent=66G96]
 + Amphipoea albo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBX nidx=null parent=D4WG]
 + Amphipoea albo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBY nidx=null parent=D4WG]
 + Amphipoea albo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSBZ nidx=null parent=D4WG]
Amphipoea flavo
 - Amphipoea flavo Heydemann [AMBIGUOUS_SYNONYM SPECIES 278910:95V24 nidx=null parent=D4WL]
 + Amphipoea flavo Tutt [AMBIGUOUS_SYNONYM SPECIES 281824:BVSC5 nidx=null parent=D4WL]
 + Amphipoea flavo Tutt [AMBIGUOUS_SYNONYM SPECIES 281824:BVSC6 nidx=null parent=D4WL]
 + Amphipoea flavo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSC7 nidx=null parent=92STR]
 + Amphipoea flavo Heydemann [AMBIGUOUS_SYNONYM SPECIES 281824:BVSC8 nidx=null parent=D4WL]
 + Amphipoea flavo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 281824:BVSC9 nidx=null parent=D4WL]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSCB nidx=null parent=D4WG]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSCC nidx=null parent=D4WG]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 281824:BVSCD nidx=null parent=D4WG]
Amphoridium cyathicarpum
 - Amphoridium cyathicarpum (Mont.) A. Jaeger [SYNONYM SPECIES 278910:9RM6D nidx=null parent=D2F6]
 + Amphoridium cyathicarpum (Mont.) Spruce [SYNONYM SPECIES 281824:BVBLL nidx=null parent=D2F6]
Amygdaloideae
 - Amygdaloideae [ACCEPTED SUBFAMILY 278910:7NDYQ nidx=null]
 + Amygdaloideae Arn. [ACCEPTED SUBFAMILY 281824:BVBB5 nidx=null]
Anacamptodon cubensis
 - Anacamptodon cubensis (Sull.) Mitt. [ACCEPTED SPECIES 278910:66JCY nidx=null]
 + Anacamptodon cubensis (Sull.) Spruce [ACCEPTED SPECIES 281824:BVGW3 nidx=null]
Anachipteria (Weigmanniella) dubia
 - Anachipteria (Weigmanniella) dubia Weigmann, 2001 [PROVISIONALLY_ACCEPTED SPECIES 278910:8T9SR nidx=null]
 + Anachipteria (Weigmanniella) dubia Weigmann, 2001 [ACCEPTED SPECIES 281824:DBCJ nidx=null]
Anchusa linearifolia
 - Anchusa linearifolia [AMBIGUOUS_SYNONYM SPECIES 278910:DLYG nidx=null parent=DLZJ]
 + Anchusa linearifolia d'Urv. [SYNONYM SPECIES 281824:BVGYW nidx=null parent=DLZJ]
Anemone banketovii
 - Anemone banketovii Rukšans [ACCEPTED SPECIES 278910:7R999 nidx=null]
 + Anemone banketovii [ACCEPTED SPECIES 281824:BVGZF nidx=null]
Anoectangium aestivum
 - Anoectangium aestivum (Hedw.) Mitt. [ACCEPTED SPECIES 278910:5V5WM nidx=null]
 + Anoectangium aestivum (Hedw.) Spruce [ACCEPTED SPECIES 281824:BV93M nidx=null]
Anoectangium lechlerianum var. laetior
 - Anoectangium lechlerianum var. laetior Hampe [SYNONYM VARIETY 278910:9W53Q nidx=null parent=5V5XV]
 + Anoectangium lechlerianum var. laetior Hampe ex A. Jaeger [SYNONYM VARIETY 281824:BW27J nidx=null parent=5V5XV]
Anonyx debruynii debruynii
 - Anonyx debruynii debruynii Gurjanova, 1962 [SYNONYM SUBSPECIES 278910:7J9W5 nidx=null parent=5V84N]
 + Anonyx debruynii debruynii Hoek, 1882 [SYNONYM SUBSPECIES 281824:BVZFB nidx=null parent=5V84N]
Anthemidaceae
 - Anthemidaceae Martinov [SYNONYM UNRANKED 278910:6GV nidx=null parent=622TP]
 + Anthemidaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8H9 nidx=null parent=622TP]
Antirrhinoideae
 - Antirrhinoideae (Speta) Hartl & Betsche [ACCEPTED SUBFAMILY 278910:7NLMH nidx=null]
 + Antirrhinoideae Benth. [ACCEPTED SUBFAMILY 281824:BVBB6 nidx=null]
Anuraphis (Macchiatiella) prunicola
 - Anuraphis (Macchiatiella) prunicola (Kaltenbach, 1843) [AMBIGUOUS_SYNONYM SPECIES 278910:BSVL6 nidx=null parent=BSWJX]
 + Anuraphis (Macchiatiella) prunicola (Kaltenbach, 1843) [AMBIGUOUS_SYNONYM SPECIES 281824:BVH6D nidx=null parent=7GLDH]
 + Anuraphis (Macchiatiella) prunicola (Kaltenbach, 1843) [AMBIGUOUS_SYNONYM SPECIES 281824:BVH6F nidx=null parent=6929D]
Aongstroemia brevipes
 - Aongstroemia brevipes Hampe ex Besch. [SYNONYM SPECIES 278910:9RN7H nidx=null parent=BLRLP]
 + Aongstroemia brevipes Hampe ex Müll. Hal. [SYNONYM SPECIES 281824:BVSDP nidx=null parent=BLRLP]
Aongstroemia falcicaulis
 - Aongstroemia falcicaulis Müll. Hal. [SYNONYM SPECIES 278910:9RN8R nidx=null parent=BLRLP]
 + Aongstroemia falcicaulis Müll. Hal. ex Renauld [SYNONYM SPECIES 281824:BVSDQ nidx=null parent=BLRLP]
Aperostoma (Aperostoma) brujense
 - Aperostoma (Aperostoma) brujense Bartsch & J. P. E. Morrison, 1942 [SYNONYM SPECIES 278910:BSVLD nidx=null parent=B6GDF]
 + Aperostoma (Aperostoma) brujense Bartsch & J. P. E. Morrison, 1942 [SYNONYM SPECIES 281824:BVH6M nidx=null parent=B6GDF]
Aphis (Aphis) brachysiphon
 - Aphis (Aphis) brachysiphon [ACCEPTED SPECIES 278910:BSVM5 nidx=null]
 + Aphis (Aphis) brachysiphon [ACCEPTED SPECIES 281824:BJJJB nidx=null]
Aphis (Aphis) cactae
 - Aphis (Aphis) cactae [ACCEPTED SPECIES 278910:8QX63 nidx=null]
 + Aphis (Aphis) cactae [ACCEPTED SPECIES 281824:BVH9V nidx=null]
Aphis (Aphis) cassiae
 - Aphis (Aphis) cassiae [ACCEPTED SPECIES 278910:8QTVQ nidx=null]
 + Aphis (Aphis) cassiae [ACCEPTED SPECIES 281824:BVH9X nidx=null]
Aphis (Aphis) cichorea
 - Aphis (Aphis) cichorea [ACCEPTED SPECIES 278910:5VLKC nidx=null]
 + Aphis (Aphis) cichorea [ACCEPTED SPECIES 281824:BVH7H nidx=null]
Aphis (Aphis) ogilviei
 - Aphis (Aphis) ogilviei [ACCEPTED SPECIES 278910:BSVPX nidx=null]
 + Aphis (Aphis) ogilviei [ACCEPTED SPECIES 281824:BFN6B nidx=null]
Aphis (Aphis) pteris-aquilinoides
 - Aphis (Aphis) pteris-aquilinoides Rafinesque, 1817 [SYNONYM SPECIES 278910:BSVP8 nidx=null parent=9GW4C]
 + Aphis (Aphis) pteris-aquilinoides Rafinesque, 1817 [SYNONYM SPECIES 281824:BVH97 nidx=null parent=9GW4C]
Aphis (Aphis) rosa-suaveolens
 - Aphis (Aphis) rosa-suaveolens Rafinesque, 1818 [ACCEPTED SPECIES 278910:BSVPC nidx=null]
 + Aphis (Aphis) rosa-suaveolens Rafinesque, 1818 [ACCEPTED SPECIES 281824:8QYHN nidx=null]
 + Aphis (Aphis) rosa-suaveolens Rafinesque, 1818 [SYNONYM SPECIES 281824:BVH9B nidx=null parent=8QYHN]
Aphis (Aphis) viciae-craccae
 - Aphis (Aphis) viciae-craccae De Geer, 1773 [ACCEPTED SPECIES 278910:BSVSD nidx=null]
 + Aphis (Aphis) viciae-craccae De Geer, 1773 [ACCEPTED SPECIES 281824:8QZQZ nidx=null]
Aphis (Loxerates) diervilla-lutea
 - Aphis (Loxerates) diervilla-lutea Rafinesque, 1817 [SYNONYM SPECIES 278910:BT88R nidx=null parent=9GWL6]
 + Aphis (Loxerates) diervilla-lutea Rafinesque, 1817 [SYNONYM SPECIES 281824:BVSDW nidx=null parent=9GWL6]
Aphis beccabunge
 - Aphis beccabunge Koch, 1855 [SYNONYM SPECIES 278910:BSVSS nidx=null parent=5DJMT]
 + Aphis beccabunge Koch, 1855 [SYNONYM SPECIES 281824:BVHDG nidx=null parent=5DJMT]
Archaeobrachyura
 - Archaeobrachyura Guinot, 1977 [SYNONYM OTHER 278910:BT7NK nidx=null parent=B8WMW]
 + Archaeobrachyura Guinot, 1977 [SYNONYM SUBSECTION_ZOOLOGY 281824:BBRYF nidx=null parent=B8WMW]
Arcyptera brevipennis
 - Arcyptera brevipennis [ACCEPTED SPECIES 278910:8PX5G nidx=null]
 + Arcyptera brevipennis (Brunner von Wattenwyl, 1861) [SYNONYM SPECIES 281824:BVHKB nidx=null parent=5FRB3]
Arenaria pubescens
 - Arenaria pubescens [SYNONYM SPECIES 278910:GF6D nidx=null parent=5FRFJ]
 + Arenaria pubescens d'Urv. [SYNONYM SPECIES 281824:BVHKS nidx=null parent=5FRFJ]
Ascophora
 - Ascophora Levinsen, 1909 [PROVISIONALLY_ACCEPTED SUBORDER 278910:BF247 nidx=null]
 + Ascophora [ACCEPTED SUBORDER 281824:84JRK nidx=null]
Asterella ludwigii
 - Asterella ludwigii (Schwägr.) Underw. ex Frye & L. Clark [SYNONYM SPECIES 278910:9MGC3 nidx=null parent=3XVNQ]
 + Asterella ludwigii (Schwägr.) Underw. ex A. Evans [SYNONYM SPECIES 281824:BVSHJ nidx=null parent=3XVNQ]
Astomum nitidulum
 - Astomum nitidulum (Müll. Hal.) Sull. & Lesq. [SYNONYM SPECIES 278910:9RNTY nidx=null parent=5BWWW]
 + Astomum nitidulum Schimp. [SYNONYM SPECIES 281824:BVSHM nidx=null parent=5BWWW]
Atherospermatoideae
 - Atherospermatoideae Endl. [SYNONYM UNRANKED 278910:J73 nidx=null parent=6VN]
 + Atherospermatoideae Burnett [SYNONYM UNRANKED 281824:BVBBD nidx=null parent=6VN]
Athysanus erythrostictus exemtus
 - Athysanus erythrostictus exemtus Puton, 1886 [SYNONYM SUBSPECIES 278910:8RHS9 nidx=null parent=8RNNK]
 + Athysanus erythrostictus exemtus (Fieber, 1872) [SYNONYM SUBSPECIES 281824:BVZFY nidx=null parent=8RNNK]
Athysanus heideni
 - Athysanus heideni (Lethierry, 1876) [SYNONYM SPECIES 278910:8RHSP nidx=null parent=6T3XR]
 + Athysanus heideni (Fieber, 1872) [SYNONYM SPECIES 281824:BVHRL nidx=null parent=6T3XR]
Atractodes rufipes
 - Atractodes rufipes Forster, 1876 [AMBIGUOUS_SYNONYM SPECIES 278910:BSW6G nidx=null parent=JJLJ]
 + Atractodes rufipes (Forster, 1876) [AMBIGUOUS_SYNONYM SPECIES 281824:BVHQ4 nidx=null parent=5VWB2]
 + Atractodes rufipes Forster, 1876 [AMBIGUOUS_SYNONYM SPECIES 281824:BVHQ5 nidx=null parent=JJLJ]
Atrichum polycarpum
 - Atrichum polycarpum (Müll. Hal.) Schimp. ex Mitt. [ACCEPTED SPECIES 278910:JL4P nidx=null]
 + Atrichum polycarpum (Müll. Hal.) Schimp. ex Spruce [ACCEPTED SPECIES 281824:BVHQ7 nidx=null]
Atriplex recurva
 - Atriplex recurva [ACCEPTED SPECIES 278910:JLNL nidx=null]
 + Atriplex recurva d'Urv. [ACCEPTED SPECIES 281824:BVHS3 nidx=null]
Atriplex tatarica subsp. recurva
 - Atriplex tatarica subsp. recurva [SYNONYM SUBSPECIES 278910:7JDYJ nidx=null parent=JLNL]
 + Atriplex tatarica subsp. recurva (d'Urv.) Rech. fil. [SYNONYM SUBSPECIES 281824:BVZFZ nidx=null parent=BVHS3]
Badura
 - Badura Mulsant & Rey, 1873 [SYNONYM GENUS 278910:BSL44 nidx=null parent=9JR2V]
 + Badura Mulsant & Rey, 1873 [SYNONYM GENUS 281824:9JR2W nidx=null parent=9JR2V]
 + Badura Mulsant & Rey, 1874 [SYNONYM GENUS 281824:BVBPN nidx=null parent=9JR2V]
Banksinoma spinifera fissurata
 - Banksinoma spinifera fissurata (Hammer, 1952) [SYNONYM SUBSPECIES 278910:7JDHK nidx=null parent=KLBW]
 + Banksinoma spinifera fissurata (Hammer, 1958) [SYNONYM SUBSPECIES 281824:BVZFN nidx=null parent=KLBW]
Beella chathamensis
 - Beella chathamensis McCulloch, 1979 [SYNONYM SPECIES 278910:L6BQ nidx=null parent=L6BR]
 + Beella chathamensis McCulloch, 1977 [SYNONYM SPECIES 281824:BVBS3 nidx=null parent=L6BR]
Beella guadalupensis
 - Beella guadalupensis McCulloch, 1979 [SYNONYM SPECIES 278910:L6BT nidx=null parent=L6BR]
 + Beella guadalupensis McCulloch, 1977 [SYNONYM SPECIES 281824:BVBS4 nidx=null parent=L6BR]
Belopteridae
 - Belopteridae Owen, 1856 [ACCEPTED FAMILY 278910:8VM68 nidx=null]
 + Belopteridae Fischer, 1887 [ACCEPTED FAMILY 281824:BVB5X nidx=null]
Bertoniella agraeciodes
 - Bertoniella agraeciodes [SYNONYM SPECIES 278910:8PX8R nidx=null parent=65SLB]
 + Bertoniella agraeciodes (Rehn, 1911) [SYNONYM SPECIES 281824:BVHXN nidx=null parent=65SLB]
Beteae
 - Beteae Moq. [SYNONYM UNRANKED 278910:KMT nidx=null parent=J84]
 + Beteae Volkens [SYNONYM UNRANKED 281824:BVBDQ nidx=null parent=J84]
Bicarinella
 - Bicarinella Akopyan, 1976 [PROVISIONALLY_ACCEPTED GENUS 278910:9WXJ6 nidx=null]
 + Bicarinella Waterhouse, 1966 [ACCEPTED GENUS 281824:BVRDK nidx=null]
Bicarinella bicarinata
 - Bicarinella bicarinata (Pchelintsev, 1953) [ACCEPTED SPECIES 278910:9WXMR nidx=null]
 + Bicarinella bicarinata (Waterhouse, 1963) [ACCEPTED SPECIES 281824:BVSKP nidx=null]
Blechnoideae
 - Blechnoideae Gasper, V. A. O. Dittrich & Salino [ACCEPTED SUBFAMILY 278910:B8X2Z nidx=null]
 + Blechnoideae Hook. [ACCEPTED SUBFAMILY 281824:BV8PC nidx=null]
 + Blechnoideae Gasper, V.A.O.Dittrich & Salino [SYNONYM UNRANKED 281824:BV8PD nidx=null parent=BV8PC]
Blepharostoma setiforme
 - Blepharostoma setiforme (Ehrh.) Schiffn. [SYNONYM SPECIES 278910:9VB8L nidx=null parent=55P43]
 + Blepharostoma setiforme (Ehrh.) Lindb. [SYNONYM SPECIES 281824:BVSKX nidx=null parent=55P43]
Bolivaritettix tibetanis
 - Bolivaritettix tibetanis [SYNONYM SPECIES 278910:8PXB5 nidx=null parent=YZDM]
 + Bolivaritettix tibetanis (Zheng, 2005) [SYNONYM SPECIES 281824:BVHZC nidx=null parent=YZDM]
Bolivaritettix tibetanus
 - Bolivaritettix tibetanus [SYNONYM SPECIES 278910:8PXB6 nidx=null parent=YZDM]
 + Bolivaritettix tibetanus (Zheng, 2005) [SYNONYM SPECIES 281824:BVHZB nidx=null parent=YZDM]
Boraginoideae
 - Boraginoideae [ACCEPTED SUBFAMILY 278910:7NDYS nidx=null]
 + Boraginoideae Arn. [ACCEPTED SUBFAMILY 281824:BVBBH nidx=null]
Borlasia inmaculata
 - Borlasia inmaculata [SYNONYM SPECIES 278910:MKFP nidx=null parent=3BNZ5]
 + Borlasia inmaculata Bürger, 1892 [SYNONYM SPECIES 281824:BVHZK nidx=null parent=3BNZ5]
Bothrocaracris bolivari
 - Bothrocaracris bolivari [SYNONYM SPECIES 278910:8P6YT nidx=null parent=9HPL]
 + Bothrocaracris bolivari (Uvarov, 1950) [SYNONYM SPECIES 281824:MNND nidx=null parent=9HPL]
Brachycaudus (Appelia) prunicola
 - Brachycaudus (Appelia) prunicola (Kaltenbach, 1843) [ACCEPTED SPECIES 278910:BSWJX nidx=null]
 + Brachycaudus (Appelia) prunicola (Kaltenbach, 1843) [ACCEPTED SPECIES 281824:6929D nidx=null]
Brachycaudus helychrisi
 - Brachycaudus helychrisi Kaltenbach, 1843 [SYNONYM SPECIES 278910:8P685 nidx=null parent=7GLDM]
 + Brachycaudus helychrisi Kaltenbach, 1843 [SYNONYM SPECIES 281824:BVBTP nidx=null parent=7GLDM]
Brachymenium papillosum
 - Brachymenium papillosum A. Jaeger [SYNONYM SPECIES 278910:9RQRR nidx=null parent=4KWKJ]
 + Brachymenium papillosum Spruce [SYNONYM SPECIES 281824:BVSMY nidx=null parent=4KWKJ]
Brachymenium smaragdinum
 - Brachymenium smaragdinum (Müll. Hal.) A. Jaeger [SYNONYM SPECIES 278910:9RQSH nidx=null parent=9MNW8]
 + Brachymenium smaragdinum (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVSMZ nidx=null parent=9MNW8]
Brachyodontes
 - Brachyodontes Agassiz, 1846 [SYNONYM GENUS 278910:BG8L3 nidx=null parent=7NR2D]
 + Brachyodontes Herrmannsen, 1846 [SYNONYM GENUS 281824:BVDFW nidx=null parent=7NR2D]
Brachythecium acuminatum var. setosum
 - Brachythecium acuminatum var. setosum (Hedw.) Rau & Herv. [SYNONYM VARIETY 278910:9TJYD nidx=null parent=N2VY]
 + Brachythecium acuminatum var. setosum (Hedw.) Austin [SYNONYM VARIETY 281824:BW27Z nidx=null parent=N2VY]
Brachythecium acutum
 - Brachythecium acutum (Mitt.) Sull. [ACCEPTED SPECIES 278910:N2VZ nidx=null]
 + Brachythecium acutum (Mitt.) Sull. ex Austin [ACCEPTED SPECIES 281824:BVJ37 nidx=null]
Brachythecium conostomum
 - Brachythecium conostomum (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:N2X3 nidx=null]
 + Brachythecium conostomum (Taylor) Spruce [ACCEPTED SPECIES 281824:BVJ38 nidx=null]
Brachythecium novae-angliae
 - Brachythecium novae-angliae (Sull. & Lesq.) A. Jaeger [ACCEPTED SPECIES 278910:9L5MJ nidx=null]
 + Brachythecium novae-angliae (Sull. & Lesq.) Austin [ACCEPTED SPECIES 281824:BVSN4 nidx=null]
Brachythecium pseudorutabulum
 - Brachythecium pseudorutabulum (Hampe) A. Jaeger [SYNONYM SPECIES 278910:9RR57 nidx=null parent=N32P]
 + Brachythecium pseudorutabulum (Hampe) Spruce [SYNONYM SPECIES 281824:BVSN5 nidx=null parent=N32P]
Bradyinoidea
 - Bradyinoidea Rauzer- Chernousova et al., 1996 [ACCEPTED SUPERFAMILY 278910:7ZSW2 nidx=null]
 + Bradyinoidea Reitlinger, 1950 nomen. transl. Rauzer-Chernousova et al., 1996 [ACCEPTED SUPERFAMILY 281824:BVB5L nidx=null]
Breutelia integrifolia
 - Breutelia integrifolia (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:693HW nidx=null]
 + Breutelia integrifolia (Taylor) Spruce [ACCEPTED SPECIES 281824:BVJ43 nidx=null]
Breutelia tomentosa
 - Breutelia tomentosa (Sw. ex Brid.) A. Jaeger [ACCEPTED SPECIES 278910:5WRHT nidx=null]
 + Breutelia tomentosa (Sw. ex Brid.) Spruce [ACCEPTED SPECIES 281824:BVJ44 nidx=null]
Bryum schimperi
 - Bryum schimperi A. Jaeger [AMBIGUOUS_SYNONYM SPECIES 278910:9RSZT nidx=null parent=4TFSB]
 + Bryum schimperi Sauerb. [AMBIGUOUS_SYNONYM SPECIES 281824:BVSPB nidx=null parent=9SWJR]
Bryum socorrense
 - Bryum socorrense (Hampe) Mitt. [SYNONYM SPECIES 278910:9RT2Z nidx=null parent=9MZ4T]
 + Bryum socorrense (Hampe) Spruce [SYNONYM SPECIES 281824:BVSPC nidx=null parent=9MZ4T]
Byssocardium
 - Byssocardium Tournouër, 1882 [ACCEPTED GENUS 278910:7NZQJ nidx=null]
 + Byssocardium Munier-Chalmas, 1882 [ACCEPTED GENUS 281824:BVBRR nidx=null]
Caeculidae
 - Caeculidae [ACCEPTED FAMILY 278910:7J2 nidx=null]
 + Caeculidae Berlese, 1883 [ACCEPTED FAMILY 281824:BV8HM nidx=null]
Caeculoidea
 - Caeculoidea [ACCEPTED SUPERFAMILY 278910:4VV nidx=null]
 + Caeculoidea Berlese, 1883 [ACCEPTED SUPERFAMILY 281824:BV8GR nidx=null]
Calendulaceae
 - Calendulaceae Link [SYNONYM UNRANKED 278910:622JL nidx=null parent=622TP]
 + Calendulaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8HN nidx=null parent=622TP]
Caligelloidea
 - Caligelloidea Gaillot & Vachard, 2007 [ACCEPTED SUPERFAMILY 278910:7ZSW4 nidx=null]
 + Caligelloidea Reitlinger in Rauzer-Chernousova & Fursenko, 1959 nomen transl. Gaillot & Vachard, 2007 [ACCEPTED SUPERFAMILY 281824:BVB5M nidx=null]
Callichimaeroida
 - Callichimaeroida Luque, Feldmann, Vernygora, Schweitzer, Cameron, Kerr, Vega, Duque, Strange, Palmer & Jaramillo, 2019 [ACCEPTED OTHER 278910:BBM2S nidx=null]
 + Callichimaeroida Luque, Feldmann, Vernygora, Schweitzer, Cameron, Kerr, Vega, Duque, Strange, Palmer & Jaramillo, 2019 [ACCEPTED SECTION_ZOOLOGY 281824:BVS3Z nidx=null]
Callicostella microcarpa
 - Callicostella microcarpa Ångstr. [SYNONYM SPECIES 278910:6984M nidx=null parent=56377]
 + Callicostella microcarpa Spruce [SYNONYM SPECIES 281824:BVJCW nidx=null parent=56377]
Callicostella pallida
 - Callicostella pallida (Hornsch.) Ångstr. [ACCEPTED SPECIES 278910:PNQG nidx=null]
 + Callicostella pallida (Hornsch.) Spruce [ACCEPTED SPECIES 281824:BV9DH nidx=null]
Calliptamus ialicus
 - Calliptamus ialicus [SYNONYM SPECIES 278910:8PXFT nidx=null parent=5G4SM]
 + Calliptamus ialicus Linnaeus, 1758 [SYNONYM SPECIES 281824:BVJFY nidx=null parent=5G4SM]
Callistochiton
 - Callistochiton P. P. Carpenter [in Dall], 1879 [ACCEPTED GENUS 278910:9JHXB nidx=null]
 + Callistochiton P. P. Carpenter, 1879 [ACCEPTED GENUS 281824:7NRLD nidx=null]
Caloptenopsis baliensis
 - Caloptenopsis baliensis [SYNONYM SPECIES 278910:8P7BW nidx=null parent=9HPM]
 + Caloptenopsis baliensis (Brancsik, 1893) [SYNONYM SPECIES 281824:Q2DH nidx=null parent=9HPM]
Caloptenopsis bifida
 - Caloptenopsis bifida [SYNONYM SPECIES 278910:8P7BX nidx=null parent=9HPT]
 + Caloptenopsis bifida (Chopard, 1941) [SYNONYM SPECIES 281824:Q2DJ nidx=null parent=9HPT]
Caloptenopsis liturifer
 - Caloptenopsis liturifer [SYNONYM SPECIES 278910:8P7C2 nidx=null parent=9HPT]
 + Caloptenopsis liturifer (Walker, 1870) [SYNONYM SPECIES 281824:5X6Z9 nidx=null parent=9HPT]
Caloptenopsis marginipennis
 - Caloptenopsis marginipennis [SYNONYM SPECIES 278910:8P7C3 nidx=null parent=9HQN]
 + Caloptenopsis marginipennis (Karsch, 1893) [SYNONYM SPECIES 281824:5X6YW nidx=null parent=9HQN]
Caloptenopsis orientalis
 - Caloptenopsis orientalis [SYNONYM SPECIES 278910:BSWVL nidx=null parent=9HPT]
 + Caloptenopsis orientalis (Schulthess, 1898) [SYNONYM SPECIES 281824:5X6YV nidx=null parent=9HPT]
Caloptenus ictericus
 - Caloptenus ictericus [SYNONYM SPECIES 278910:8P7CF nidx=null parent=5G4S3]
 + Caloptenus ictericus Serville, 1838 [SYNONYM SPECIES 281824:Q2GN nidx=null parent=5G4S3]
Caloptenus marginellus
 - Caloptenus marginellus [SYNONYM SPECIES 278910:8P7CG nidx=null parent=5G4SM]
 + Caloptenus marginellus Serville, 1838 [SYNONYM SPECIES 281824:Q2H5 nidx=null parent=5G4SM]
Campylium
 - Campylium (Sull.) Mitt. [ACCEPTED GENUS 278910:9JHZH nidx=null]
 + Campylium (Sull.) Spruce [ACCEPTED GENUS 281824:BV8LM nidx=null]
Campylodontium onustum
 - Campylodontium onustum (Hampe) A. Jaeger [SYNONYM SPECIES 278910:9RV6Q nidx=null parent=424RZ]
 + Campylodontium onustum (Hampe) Spruce [SYNONYM SPECIES 281824:BVSQW nidx=null parent=424RZ]
Campylopus areodictyon
 - Campylopus areodictyon (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:QHKC nidx=null]
 + Campylopus areodictyon (Müll. Hal.) Spruce [ACCEPTED SPECIES 281824:BVJH5 nidx=null]
Campylopus filifolius
 - Campylopus filifolius (Hornsch.) Mitt. [ACCEPTED SPECIES 278910:9JY9X nidx=null]
 + Campylopus filifolius (Hornsch.) Spruce [ACCEPTED SPECIES 281824:BVJH6 nidx=null]
Campylopus lamellinervis
 - Campylopus lamellinervis (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:QHNF nidx=null]
 + Campylopus lamellinervis (Müll. Hal.) Spruce [ACCEPTED SPECIES 281824:BVJH7 nidx=null]
Campylopus porphyreodictyon
 - Campylopus porphyreodictyon (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9VN35 nidx=null parent=9JY9X]
 + Campylopus porphyreodictyon (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVSR4 nidx=null parent=BVJH6]
Campylopus pusillus
 - Campylopus pusillus Schimp. [AMBIGUOUS_SYNONYM SPECIES 278910:9RVS4 nidx=null parent=42S92]
 - Campylopus pusillus Schimp. ex Müll. Hal. [AMBIGUOUS_SYNONYM SPECIES 278910:9RVS5 nidx=null parent=35QXN]
 + Campylopus pusillus Schimp. ex Besch. [AMBIGUOUS_SYNONYM SPECIES 281824:BVSR5 nidx=null parent=42S92]
 + Campylopus pusillus Schimp. ex Broth. [AMBIGUOUS_SYNONYM SPECIES 281824:BVSR6 nidx=null parent=35QXN]
Caprifolioideae
 - Caprifolioideae (Juss.) [ACCEPTED SUBFAMILY 278910:J9V nidx=null]
 + Caprifolioideae Eaton [ACCEPTED SUBFAMILY 281824:BVBBP nidx=null]
Carabus viridis
 - Carabus viridis Letzner, 1849 unavailable name [AMBIGUOUS_SYNONYM SPECIES 278910:BSX38 nidx=null parent=8LQMG]
 + Carabus viridis Letzner, 1849 [AMBIGUOUS_SYNONYM SPECIES 281824:8L8QG nidx=null parent=8LQMG]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 281824:BVJLL nidx=null parent=8LW3X]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 281824:BVJLM nidx=null parent=8LVKM]
 + Carabus viridis (G.Hauser, 1921) [AMBIGUOUS_SYNONYM SPECIES 281824:BVJLN nidx=null parent=8LVMC]
Carduaceae
 - Carduaceae Dumort. [SYNONYM UNRANKED 278910:7QW nidx=null parent=622TP]
 + Carduaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8HP nidx=null parent=622TP]
Cataloipus oberthueri
 - Cataloipus oberthueri [SYNONYM SPECIES 278910:8PXK5 nidx=null parent=5G9FX]
 + Cataloipus oberthueri Bolívar, 1890 [SYNONYM SPECIES 281824:BVJMN nidx=null parent=5G9FX]
Celtidoideae
 - Celtidoideae Engl. [SYNONYM UNRANKED 278910:626TM nidx=null parent=7NV]
 + Celtidoideae A.Rich. ex Darl. [SYNONYM UNRANKED 281824:BVBBQ nidx=null parent=7NV]
Cenocorystes isericus
 - Cenocorystes isericus Frič & Kafka, 1887 [ACCEPTED SPECIES 278910:9X8N7 nidx=null]
 + Cenocorystes isericus (Fritsch in Fritsch & Kafka, 1887) [ACCEPTED SPECIES 281824:BVSVK nidx=null]
Centaurea mengenensis
 - Centaurea mengenensis Uysal & Åžirin [ACCEPTED SPECIES 278910:9VF6L nidx=null]
 + Centaurea mengenensis [ACCEPTED SPECIES 281824:BVSVL nidx=null]
Centaureaceae
 - Centaureaceae Martynov [SYNONYM UNRANKED 278910:622LG nidx=null parent=622TP]
 + Centaureaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8HR nidx=null parent=622TP]
Cephalozia helleriana
 - Cephalozia helleriana (Nees ex Lindenb.) Lindb. [SYNONYM SPECIES 278910:9VR77 nidx=null parent=ZLVZ]
 + Cephalozia helleriana (Nees ex Lindenb.) Lindb. ex Arnell [SYNONYM SPECIES 281824:BVSVN nidx=null parent=ZLVZ]
Ceratomyxa drepanopsettae
 - Ceratomyxa drepanopsettae Averintzev, 1908 [ACCEPTED SPECIES 278910:SNGK nidx=null]
 + Ceratomyxa drepanopsettae Awerinzew, 1907 [ACCEPTED SPECIES 281824:BVJQY nidx=null]
Ceratozetes petrovi
 - Ceratozetes petrovi Kulijev, 1962 [SYNONYM SPECIES 278910:8SXRX nidx=null parent=SQMP]
 + Ceratozetes petrovi Kulijev, 1968 [SYNONYM SPECIES 281824:BVJRC nidx=null parent=7S49H]
Cerebratulus hubrechti
 - Cerebratulus hubrechti [SYNONYM SPECIES 278910:SWKR nidx=null parent=3V2Q2]
 + Cerebratulus hubrechti Langerhans, 1880 [SYNONYM SPECIES 281824:BVJRF nidx=null parent=3V2Q2]
Cereoideae
 - Cereoideae [SYNONYM UNRANKED 278910:997HL nidx=null parent=93LST]
 + Cereoideae Drude [SYNONYM UNRANKED 281824:BVBBR nidx=null parent=93LST]
Cerosipha (Cerosipha) cirsii-oleracei
 - Cerosipha (Cerosipha) cirsii-oleracei Börner, 1932 [SYNONYM SPECIES 278910:BSXBJ nidx=null parent=FDTY]
 + Cerosipha (Cerosipha) cirsii-oleracei Börner, 1932 [SYNONYM SPECIES 281824:BVJSX nidx=null parent=FDTY]
Chaetosiphon (Pentatrichopus) jacobi
 - Chaetosiphon (Pentatrichopus) jacobi [ACCEPTED SPECIES 278910:B9R94 nidx=null]
 + Chaetosiphon (Pentatrichopus) jacobi [ACCEPTED SPECIES 281824:BVJT5 nidx=null]
Choneplax
 - Choneplax P. P. Carpenter MS, Dall, 1882 [ACCEPTED GENUS 278910:7NSS3 nidx=null]
 + Choneplax P. P. Carpenter, 1882 [ACCEPTED GENUS 281824:BW588 nidx=null]
Chorthippus (Glyptobothrus) binotatus
 - Chorthippus (Glyptobothrus) binotatus (Charpentier, 1825) [ACCEPTED SPECIES 278910:5YDSD nidx=null]
 + Chorthippus (Glyptobothrus) binotatus (Charpentier, 1825) [ACCEPTED SPECIES 281824:BVJZ6 nidx=null]
Cicadula quadrilineatus
 - Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 278910:BFSFH nidx=null parent=8JWBD]
 + Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 281824:BVK85 nidx=null parent=8JWBD]
Cichoriaceae
 - Cichoriaceae Durandé [SYNONYM UNRANKED 278910:7NGS6 nidx=null parent=622TP]
 + Cichoriaceae Juss. [SYNONYM UNRANKED 281824:88S nidx=null parent=622TP]
Cicindela marginalis
 - Cicindela marginalis Beuthin, 1895 unavailable name [AMBIGUOUS_SYNONYM SPECIES 278910:8LB8M nidx=null parent=8MG6Q]
 + Cicindela marginalis Beuthin, 1894 [AMBIGUOUS_SYNONYM SPECIES 281824:BVK99 nidx=null parent=5XJPZ]
 + Cicindela marginalis Beuthin, 1895 [AMBIGUOUS_SYNONYM SPECIES 281824:BVK9B nidx=null parent=8MG6Q]
Cinara (Cinarella) schimitscheki
 - Cinara (Cinarella) schimitscheki Börner, 1940 [SYNONYM SPECIES 278910:8QTY5 nidx=null parent=7H28D]
 + Cinara (Cinarella) schimitscheki Börner, 1940 [SYNONYM SPECIES 281824:BV8VR nidx=null parent=7H28D]
Cinara (Cupressobius) tujafilina
 - Cinara (Cupressobius) tujafilina (Del Guercio, 1909) [SYNONYM SPECIES 278910:8QSGD nidx=null parent=BSLG7]
 + Cinara (Cupressobius) tujafilina (Del Guercio, 1909) [SYNONYM SPECIES 281824:BVBZB nidx=null parent=BSLG7]
Cirolana rotunda
 - Cirolana rotunda [SYNONYM SPECIES 278910:VGFS nidx=null parent=42985]
 + Cirolana rotunda Bruce & Jones, 1978 [SYNONYM SPECIES 281824:BVK86 nidx=null parent=42985]
Cleioprocta
 - Cleioprocta [SYNONYM OTHER 278910:BT7ND nidx=null parent=7NGFW]
 + Cleioprocta [SYNONYM SECTION_ZOOLOGY 281824:BGXX5 nidx=null parent=7NGFW]
Cleomoideae
 - Cleomoideae Pax [SYNONYM UNRANKED 278910:93LT2 nidx=null parent=8BN]
 + Cleomoideae Burnett [SYNONYM UNRANKED 281824:BV8PL nidx=null parent=8BN]
Cobalus cocalus
 - Cobalus cocalus Hayward, 1939 [AMBIGUOUS_SYNONYM SPECIES 278910:92YD2 nidx=null parent=3424Y]
 + Cobalus cocalus Hayward, 1938 [AMBIGUOUS_SYNONYM SPECIES 281824:BVKFF nidx=null parent=34DNW]
 + Cobalus cocalus Hayward, 1939 [AMBIGUOUS_SYNONYM SPECIES 281824:BVKFG nidx=null parent=3424Y]
Coelidia apicalis
 - Coelidia apicalis (Snellen van Vollenhoven, 1862) [ACCEPTED SPECIES 278910:WQQS nidx=null]
 + Coelidia apicalis (van Vollenhoven, 1862) [ACCEPTED SPECIES 281824:BV8VT nidx=null]
Collinsieae
 - Collinsieae [SYNONYM UNRANKED 278910:99687 nidx=null parent=7NLP6]
 + Collinsieae Meisn. [SYNONYM UNRANKED 281824:BVBFB nidx=null parent=7NLP6]
Colobanthus crassifolius
 - Colobanthus crassifolius [SYNONYM SPECIES 278910:X5X4 nidx=null parent=X5XN]
 + Colobanthus crassifolius (d'Urv.) Hook. fil. [SYNONYM SPECIES 281824:BVC56 nidx=null parent=X5XN]
Colpodota
 - Colpodota Mulsant & Rey, 1873 [SYNONYM GENUS 278910:BSLGL nidx=null parent=NL3]
 + Colpodota Mulsant & Rey, 1873 [SYNONYM GENUS 281824:BVBZS nidx=null parent=NL3]
 + Colpodota Mulsant & Rey, 1874 [SYNONYM GENUS 281824:BVBZT nidx=null parent=NL3]
Coluzea
 - Coluzea Finlay [in Allan], 1926 [ACCEPTED GENUS 278910:7P263 nidx=null]
 + Coluzea H. J. Finlay [in Allan], 1926 [ACCEPTED GENUS 281824:BV9G7 nidx=null]
Combretum malifolium
 - Combretum malifolium (H. Perrier) comb. ined. [PROVISIONALLY_ACCEPTED SPECIES 278910:5ZRHK nidx=null]
 + Combretum malifolium (Baker) Jongkind & Callm. [ACCEPTED SPECIES 281824:BVKNV nidx=null]
Compositae
 - Compositae Adans. [SYNONYM UNRANKED 278910:7NDYL nidx=null parent=622TP]
 + Compositae Giseke [SYNONYM UNRANKED 281824:5T83V nidx=null parent=622TP]
Connareae
 - Connareae Planch. [SYNONYM UNRANKED 278910:KQR nidx=null parent=JD6]
 + Connareae DC. [SYNONYM UNRANKED 281824:BVBFC nidx=null parent=JD6]
Conophyma bogojavlenskyi
 - Conophyma bogojavlenskyi [SYNONYM SPECIES 278910:8P8J3 nidx=null parent=XRQ5]
 + Conophyma bogojavlenskyi Tarbinsky, 1926 [SYNONYM SPECIES 281824:BVKVM nidx=null parent=XRQ5]
Conophyma heqinensis
 - Conophyma heqinensis [SYNONYM SPECIES 278910:9H3BV nidx=null parent=XRQN]
 + Conophyma heqinensis Zhang, Xu & Zhang, 2015 [SYNONYM SPECIES 281824:BVT23 nidx=null parent=XRQN]
Conophyma kusnetzovi
 - Conophyma kusnetzovi [SYNONYM SPECIES 278910:8P8J4 nidx=null parent=8QJVW]
 + Conophyma kusnetzovi Umnov, 1931 [SYNONYM SPECIES 281824:XRQX nidx=null parent=8QJVW]
Conophyma kuznetzovi
 - Conophyma kuznetzovi [SYNONYM SPECIES 278910:8P8J5 nidx=null parent=8QJVW]
 + Conophyma kuznetzovi Umnov, 1931 [SYNONYM SPECIES 281824:BVKVN nidx=null parent=8QJVW]
Conophyma olive
 - Conophyma olive [SYNONYM SPECIES 278910:8PY3B nidx=null parent=XRRJ]
 + Conophyma olive Huang, 2006 [SYNONYM SPECIES 281824:BVKVP nidx=null parent=XRRJ]
Conophyma predtetshenskii
 - Conophyma predtetshenskii [SYNONYM SPECIES 278910:8P8J6 nidx=null parent=XRRT]
 + Conophyma predtetshenskii Mistshenko, 1937 [SYNONYM SPECIES 281824:BVKVQ nidx=null parent=XRRT]
Conophyma tarbinskii
 - Conophyma tarbinskii [SYNONYM SPECIES 278910:8P8J7 nidx=null parent=XRSH]
 + Conophyma tarbinskii Miram, 1931 [SYNONYM SPECIES 281824:BVKVR nidx=null parent=XRSH]
Corallana basalis
 - Corallana basalis (Heller, 1868) [ACCEPTED SPECIES 278910:Y9TJ nidx=null]
 + Corallana basalis (Heller, 1865) [ACCEPTED SPECIES 281824:BVKXX nidx=null]
Cordulegaster lunifera
 - Cordulegaster lunifera Seyls, 1878 [SYNONYM SPECIES 278910:BSYLZ nidx=null parent=BV654]
 + Cordulegaster lunifera Selys, 1878 [SYNONYM SPECIES 281824:YC6D nidx=null parent=BW5BY]
Cosmobates tunicatus
 - Cosmobates tunicatus Balogh, 1970 [ACCEPTED SPECIES 278910:YTZY nidx=null]
 + Cosmobates tunicatus Balogh, 1959 [ACCEPTED SPECIES 281824:BVKYW nidx=null]
Cotysoides tibetanus
 - Cotysoides tibetanus [SYNONYM SPECIES 278910:8PY4N nidx=null parent=YZDM]
 + Cotysoides tibetanus (Zheng, 2005) [SYNONYM SPECIES 281824:BVL6Y nidx=null parent=YZDM]
Crinocheta
 - Crinocheta Legrand, 1946 [ACCEPTED OTHER 278910:8PR7H nidx=null]
 + Crinocheta Legrand, 1946 [ACCEPTED SECTION_ZOOLOGY 281824:BVBTB nidx=null]
Cryphaea julacea
 - Cryphaea julacea (Dozy & Molk.) Mitt. [SYNONYM SPECIES 278910:9RXRR nidx=null parent=9SX5M]
 + Cryphaea julacea (Dozy & Molk.) Spruce [SYNONYM SPECIES 281824:BVT4G nidx=null parent=9SX5M]
Crypsinoideae
 - Crypsinoideae [ACCEPTED SUBFAMILY 278910:BDJ9N nidx=null]
 + Crypsinoideae B. K. Nayar [ACCEPTED SUBFAMILY 281824:BVRBC nidx=null]
Cryptobias ocellata
 - Cryptobias ocellata Dohrn, 1879 [SYNONYM SPECIES 278910:BMV4X nidx=null parent=BJMKB]
 + Cryptobias ocellata Dohrn, 1879 [SYNONYM SPECIES 281824:BVL8Q nidx=null parent=BJMKB]
Curtisioideae
 - Curtisioideae Harms [SYNONYM UNRANKED 278910:626TD nidx=null parent=8T5]
 + Curtisioideae Engl. [SYNONYM UNRANKED 281824:BVBBX nidx=null parent=8T5]
Cyathocoenia golisensis
 - Cyathocoenia golisensis Latham, 1829 [ACCEPTED SPECIES 278910:BS9N8 nidx=null]
 + Cyathocoenia golisensis Latham, 1929 [ACCEPTED SPECIES 281824:BVYD2 nidx=null]
Cyclas palustris
 - Cyclas palustris Draparnaud, 1801 [SYNONYM SPECIES 278910:8TXJ6 nidx=null parent=4J8NR]
 + Cyclas palustris Draparnaud, 1805 [SYNONYM SPECIES 281824:BVLF6 nidx=null parent=4J8NR]
Cyclodorippoida
 - Cyclodorippoida Ahyong, Lai, Sharkey, Colgan & Ng, 2007 [ACCEPTED OTHER 278910:BDJKL nidx=null]
 + Cyclodorippoida Ahyong, Lai, Sharkey, Colgan & Ng, 2007 [ACCEPTED SECTION_ZOOLOGY 281824:BVS42 nidx=null]
Cymus (Artheneis) ericae
 - Cymus (Artheneis) ericae [SYNONYM SPECIES 278910:8QMVS nidx=null parent=487L8]
 + Cymus (Artheneis) ericae [SYNONYM SPECIES 281824:BVLGW nidx=null parent=487L8]
Cynaraceae
 - Cynaraceae Durandé [SYNONYM UNRANKED 278910:7NH45 nidx=null parent=622TP]
 + Cynaraceae Burnett [SYNONYM UNRANKED 281824:BV8HX nidx=null parent=622TP]
Cyrtacanthacris carenicollis
 - Cyrtacanthacris carenicollis [SYNONYM SPECIES 278910:8PY5T nidx=null parent=7F9LS]
 + Cyrtacanthacris carenicollis (Blanchard, 1853) [SYNONYM SPECIES 281824:BVLH4 nidx=null parent=7F9LS]
Cyrtacanthacris maculicollis
 - Cyrtacanthacris maculicollis [SYNONYM SPECIES 278910:8P8QQ nidx=null parent=7L6Q6]
 + Cyrtacanthacris maculicollis (Walker, 1870) [SYNONYM SPECIES 281824:6C8JF nidx=null parent=7L6Q6]
Cystosoma
 - Cystosoma Spence Bate, 1862 [SYNONYM GENUS 278910:BF3RC nidx=null parent=7NVBD]
 + Cystosoma [SYNONYM GENUS 281824:3Z4W nidx=null parent=7NVBD]
Dactynotus (Dactynotus) cichorii
 - Dactynotus (Dactynotus) cichorii (Koch, 1855) [AMBIGUOUS_SYNONYM SPECIES 278910:BSZ6S nidx=null parent=7DTZX]
 + Dactynotus (Dactynotus) cichorii (Koch, 1855) [AMBIGUOUS_SYNONYM SPECIES 281824:BVLJQ nidx=null parent=7DTZX]
Dainellidae
 - Dainellidae Hance, Hou & Vachard, 2011 [ACCEPTED FAMILY 278910:7ZSY5 nidx=null]
 + Dainellidae Cózar & Vachard, 2001 nom. transl. Hance, Hou & Vachard, 2011 [ACCEPTED FAMILY 281824:BVB6F nidx=null]
Dakoticancroida
 - Dakoticancroida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRGNT nidx=null]
 + Dakoticancroida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281824:BDJKM nidx=null]
Decticus stschukini
 - Decticus stschukini [SYNONYM SPECIES 278910:8QJ7Z nidx=null parent=7K53C]
 + Decticus stschukini (Fischer von Waldheim, 1846) [SYNONYM SPECIES 281824:BVLLT nidx=null parent=7K53C]
Delthyrididae
 - Delthyrididae Waagen, 1883 [ACCEPTED FAMILY 278910:BTNJ9 nidx=null]
 + Delthyrididae Phillips, 1841 [ACCEPTED FAMILY 281824:BW2HS nidx=null]
Deltocephalus (Hebecephalus) blandus
 - Deltocephalus (Hebecephalus) blandus Gillette, 1898 [SYNONYM SPECIES 278910:8RJHJ nidx=null parent=5598F]
 + Deltocephalus (Hebecephalus) blandus Gillette, 1898 [SYNONYM SPECIES 281824:BVLM9 nidx=null parent=5598F]
Deltocephalus (Recilia) horvathi
 - Deltocephalus (Recilia) horvathi (Then, 1896) [SYNONYM SPECIES 278910:9GX3N nidx=null parent=8RLTT]
 + Deltocephalus (Recilia) horvathi (Then, 1896) [SYNONYM SPECIES 281824:BVLMV nidx=null parent=8RLTT]
Derostoma caecum
 - Derostoma caecum Fuhrmann, 1894 [ACCEPTED SPECIES 278910:34YP9 nidx=null]
 + Derostoma caecum [SYNONYM SPECIES 281824:BVLQX nidx=null parent=777QX]
Derostoma foliaceum
 - Derostoma foliaceum Böhmig, 1914 [SYNONYM SPECIES 278910:34YPF nidx=null parent=76VQX]
 + Derostoma foliaceum [SYNONYM SPECIES 281824:BVLQY nidx=null parent=76VQX]
Desmophyllum striatum
 - Desmophyllum striatum Sismonda, 1871 [ACCEPTED SPECIES 278910:884SR nidx=null]
 + Desmophyllum striatum Michellotti, 1871 [ACCEPTED SPECIES 281824:BVLQ8 nidx=null]
Dianthus giganteus
 - Dianthus giganteus [ACCEPTED SPECIES 278910:6D22B nidx=null]
 + Dianthus giganteus d'Urv. [ACCEPTED SPECIES 281824:BV9Z8 nidx=null]
Dichosomata
 - Dichosomata Balogh & Mahunka, 1979 [ACCEPTED OTHER 278910:8P49Z nidx=null]
 + Dichosomata Balogh & Mahunka, 1979 [ACCEPTED SECTION_ZOOLOGY 281824:BVFJ2 nidx=null]
Dicranella campylophylla
 - Dicranella campylophylla (Taylor) A. Jaeger [SYNONYM SPECIES 278910:9L9VY nidx=null parent=9RN7N]
 + Dicranella campylophylla (Taylor) Spruce [SYNONYM SPECIES 281824:BVLNB nidx=null parent=9RN7N]
Dicranella densa
 - Dicranella densa (Hook.) Mitt. [SYNONYM SPECIES 278910:35QTR nidx=null parent=9SGQR]
 + Dicranella densa (Hook.) Spruce [SYNONYM SPECIES 281824:BVLSN nidx=null parent=9SGQR]
Dicranella exigua
 - Dicranella exigua (Schwägr.) Mitt. [SYNONYM SPECIES 278910:6CS6Q nidx=null parent=9SGQW]
 + Dicranella exigua (Schwägr.) Spruce [SYNONYM SPECIES 281824:BVLSP nidx=null parent=9SGQW]
Dicranella jamesonii
 - Dicranella jamesonii (Mitt.) Broth. [SYNONYM SPECIES 278910:9RYQT nidx=null parent=9KX64]
 + Dicranella jamesonii (Mitt.) Spruce [SYNONYM SPECIES 281824:BVC9W nidx=null parent=9KX64]
Dicranella schreberiana
 - Dicranella schreberiana (Hedw.) Hilf. ex H.A. Crum & L.E. Anderson [SYNONYM SPECIES 278910:9L9WB nidx=null parent=BLRL8]
 + Dicranella schreberiana (Hedw.) Dixon [SYNONYM SPECIES 281824:BVC9X nidx=null parent=BLRL8]
Dicranella vaginata
 - Dicranella vaginata (Hook.) Cardot [ACCEPTED SPECIES 278910:9RYTL nidx=null]
 + Dicranella vaginata (Hook.) Spruce [ACCEPTED SPECIES 281824:BVC9Y nidx=null]
Dicranum bergeri
 - Dicranum bergeri Blandow [SYNONYM SPECIES 278910:9MM6B nidx=null parent=35TPR]
 + Dicranum bergeri Blandow ex Hoppe [SYNONYM SPECIES 281824:BVTB7 nidx=null parent=35TPR]
Dicuspiditermes leghugathrae
 - Dicuspiditermes leghugathrae Amina & Rajmohana, 2020 [ACCEPTED SPECIES 278910:9X6TT nidx=null]
 + Dicuspiditermes leghugathrae Poovoli & Keloth, 2020 [ACCEPTED SPECIES 281824:BVG32 nidx=null]
Didymodon campylocarpus
 - Didymodon campylocarpus (Müll. Hal.) Broth. [SYNONYM SPECIES 278910:9S223 nidx=null parent=5WSTB]
 + Didymodon campylocarpus (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVTBB nidx=null parent=5WSTB]
Dilleniidae
 - Dilleniidae Takht. ex Reveal & Takht. [SYNONYM UNRANKED 278910:KW nidx=null parent=BMH54]
 + Dilleniidae Takht. ex Reveal & Tahkt. [SYNONYM UNRANKED 281824:BV87Z nidx=null parent=BMH54]
Dinoplax
 - Dinoplax P. P. Carpenter [in Dall], 1882 [ACCEPTED GENUS 278910:9JJSH nidx=null]
 + Dinoplax P. P. Carpenter, 1882 [ACCEPTED GENUS 281824:7NWW6 nidx=null]
Diplocheta
 - Diplocheta Vandel, 1957 [ACCEPTED OTHER 278910:8PR7J nidx=null]
 + Diplocheta Vandel, 1957 [ACCEPTED SECTION_ZOOLOGY 281824:BV8BK nidx=null]
Diplocolenus nigrifrons
 - Diplocolenus nigrifrons Metcalf, 1967 non Kirschbaum, 1868 [AMBIGUOUS_SYNONYM SPECIES 278910:8RK7Q nidx=null parent=8RK6T]
 + Diplocolenus nigrifrons Emeljanov, 1964 [SYNONYM SPECIES 281824:BVLRS nidx=null parent=BV68R]
Discocyrtus dualis
 - Discocyrtus dualis Piza Jr., 1943 [SYNONYM SPECIES 278910:9X6XF nidx=null parent=9X9MK]
 + Discocyrtus dualis Piza, 1943 [SYNONYM SPECIES 281824:BVTCF nidx=null parent=9X9MK]
Ditrichum heteromallum f. arcticum
 - Ditrichum heteromallum f. arcticum (Schimp.) Arnell [SYNONYM FORM 278910:9W72R nidx=null parent=58C97]
 + Ditrichum heteromallum f. arcticum (Schimp.) Arnell ex Podp. [SYNONYM FORM 281824:BW2H5 nidx=null parent=58C97]
Ditrichum heteromallum f. atrovirens
 - Ditrichum heteromallum f. atrovirens Röll [SYNONYM FORM 278910:9VRYD nidx=null parent=6DC8X]
 + Ditrichum heteromallum f. atrovirens (Röll) Podp. [SYNONYM FORM 281824:BW2H6 nidx=null parent=6DC8X]
Ditrichum heteromallum f. flavovirens
 - Ditrichum heteromallum f. flavovirens Röll [SYNONYM FORM 278910:9W9R8 nidx=null parent=6DC8X]
 + Ditrichum heteromallum f. flavovirens (Röll) Podp. [SYNONYM FORM 281824:BW2H7 nidx=null parent=6DC8X]
Diuraphis (Diuraphis) noxia
 - Diuraphis (Diuraphis) noxia (Mordvilko, 1913) [ACCEPTED SPECIES 278910:BSLMR nidx=null]
 + Diuraphis (Diuraphis) noxia (Mordvilko, 1913) [ACCEPTED SPECIES 281824:8P93Y nidx=null]
Dolicheremaeus furcillatus
 - Dolicheremaeus furcillatus Mahunka, 1977 [ACCEPTED SPECIES 278910:374N5 nidx=null]
 + Dolicheremaeus furcillatus Mahunka, 1997 [ACCEPTED SPECIES 281824:BVLYY nidx=null]
Donax (Deltachion) semisulcatus semigranosus
 - Donax (Deltachion) semisulcatus semigranosus Dunker, 1877 [SYNONYM SUBSPECIES 278910:BTLJ5 nidx=null parent=9WK3Q]
 + Donax (Deltachion) semisulcatus semigranosus Dunker, 1877 [SYNONYM SUBSPECIES 281824:BVZMN nidx=null parent=9WK3Q]
Dreissena filifera
 - Dreissena filifera Andrusov, 1897 [ACCEPTED SPECIES 278910:9HPMH nidx=null]
 + Dreissena filifera Andrusov, 1893 [ACCEPTED SPECIES 281824:BVTDL nidx=null]
Dreissensia filifera
 - Dreissensia filifera Andrusov, 1897 [SYNONYM SPECIES 278910:9HPN6 nidx=null parent=9HPMH]
 + Dreissensia filifera Andrusov, 1893 [SYNONYM SPECIES 281824:BVTDM nidx=null parent=BVTDL]
Drepanaphis hjirayamae
 - Drepanaphis hjirayamae [SYNONYM SPECIES 278910:B72GK nidx=null parent=4F328]
 + Drepanaphis hjirayamae [SYNONYM SPECIES 281824:BVM6Q nidx=null parent=4F328]
Drepanium
 - Drepanium (Schimp.) Lange & C.E.O. Jensen [ACCEPTED GENUS 278910:9KV3L nidx=null]
 + Drepanium (Schimp.) Spruce [ACCEPTED GENUS 281824:BV8P8 nidx=null]
Drepanium cupressiforme
 - Drepanium cupressiforme (Hedw.) G. Roth [SYNONYM SPECIES 278910:9S2NN nidx=null parent=3NSYR]
 + Drepanium cupressiforme (Hedw.) Spruce [SYNONYM SPECIES 281824:BVTDN nidx=null parent=3NSYR]
Dromiacea
 - Dromiacea De Haan, 1833 [ACCEPTED OTHER 278910:BBP2S nidx=null]
 + Dromiacea De Haan, 1833 [ACCEPTED SECTION_ZOOLOGY 281824:BVS43 nidx=null]
Duabangoideae
 - Duabangoideae (Takht.) Graham, Thorne & Reveal [SYNONYM UNRANKED 278910:7NLQP nidx=null parent=628KQ]
 + Duabangoideae S.A.Graham, Thorne & Reveal [SYNONYM UNRANKED 281824:BVBC4 nidx=null parent=628KQ]
Dysaphis (Dysaphis) anthrisci
 - Dysaphis (Dysaphis) anthrisci Börner, 1950 [ACCEPTED SPECIES 278910:BSZQ6 nidx=null]
 + Dysaphis (Dysaphis) anthrisci Börner, 1950 [ACCEPTED SPECIES 281824:386VC nidx=null]
Dysaphis (Dysaphis) brancoi
 - Dysaphis (Dysaphis) brancoi (Börner, 1950) [ACCEPTED SPECIES 278910:386VJ nidx=null]
 + Dysaphis (Dysaphis) brancoi (Börner, 1950) [ACCEPTED SPECIES 281824:BVM7T nidx=null]
Dysaphis (Dysaphis) crataegi
 - Dysaphis (Dysaphis) crataegi (Kaltenbach, 1843) [ACCEPTED SPECIES 278910:386VV nidx=null]
 + Dysaphis (Dysaphis) crataegi (Kaltenbach, 1843) [ACCEPTED SPECIES 281824:BVM2T nidx=null]
Dysaphis (Dysaphis) eremuri
 - Dysaphis (Dysaphis) eremuri [ACCEPTED SPECIES 278910:386W3 nidx=null]
 + Dysaphis (Dysaphis) eremuri [ACCEPTED SPECIES 281824:BVM83 nidx=null]
Dysaphis (Dysaphis) koryakini
 - Dysaphis (Dysaphis) koryakini Stekolshchikov & Buga, 2018 [ACCEPTED SPECIES 278910:8QWSS nidx=null]
 + Dysaphis (Dysaphis) koryakini Stekolshchikov & Buga, 2018 [ACCEPTED SPECIES 281824:BVM9B nidx=null]
Dysaphis (Dysaphis) lappae
 - Dysaphis (Dysaphis) lappae (Koch, 1854) [ACCEPTED SPECIES 278910:386WD nidx=null]
 + Dysaphis (Dysaphis) lappae (Koch, 1854) [ACCEPTED SPECIES 281824:BVC6B nidx=null]
Dysaphis (Dysaphis) sibirica
 - Dysaphis (Dysaphis) sibirica [ACCEPTED SPECIES 278910:386XB nidx=null]
 + Dysaphis (Dysaphis) sibirica [ACCEPTED SPECIES 281824:BVM8C nidx=null]
Echinopaceae
 - Echinopaceae Dumort. [SYNONYM UNRANKED 278910:9KJ nidx=null parent=622TP]
 + Echinopaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8J9 nidx=null parent=622TP]
Ectodemites pinguis
 - Ectodemites pinguis (Ulrich & Bassler, 1906) Costanz0 & Kae, 1987 [ACCEPTED SPECIES 278910:85QM8 nidx=null]
 + Ectodemites pinguis (Ulrich & Bassler, 1906) Costanzo & Kae, 1987 [ACCEPTED SPECIES 281824:BVMBX nidx=null]
Elaphroconcha bataviana
 - Elaphroconcha bataviana (von dem Busch, 1842) [ACCEPTED SPECIES 278910:B879F nidx=null]
 + Elaphroconcha bataviana (L. Pfeiffer, 1842) [ACCEPTED SPECIES 281824:7R685 nidx=null]
Ellesmerella permica
 - Ellesmerella permica (Pia, 1937) [ACCEPTED SPECIES 278910:82F39 nidx=null]
 + Ellesmerella permica (Steinmann in Pia, 1937) [ACCEPTED SPECIES 281824:BVMFP nidx=null]
Empoasca (Empoasca) boninensis
 - Empoasca (Empoasca) boninensis (Matsumura, 1931) [ACCEPTED SPECIES 278910:39K9X nidx=null]
 + Empoasca (Empoasca) boninensis (Matsumura, 1931) [ACCEPTED SPECIES 281824:BV8W5 nidx=null]
Engelhardieae
 - Engelhardieae [SYNONYM UNRANKED 278910:9CGNB nidx=null parent=JJ2]
 + Engelhardieae W.E.Manning [SYNONYM UNRANKED 281824:BVBFF nidx=null parent=JJ2]
Entodon pallescens
 - Entodon pallescens (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:39YTK nidx=null]
 + Entodon pallescens (Müll. Hal.) Spruce [ACCEPTED SPECIES 281824:BVMGG nidx=null]
Eodromites grandis
 - Eodromites grandis (von Meyer, 1857) [ACCEPTED SPECIES 278910:B4Z9K nidx=null]
 + Eodromites grandis (von Meyer, 1860) [ACCEPTED SPECIES 281824:BVTJW nidx=null]
Epacromia famulus
 - Epacromia famulus [SYNONYM SPECIES 278910:8PYN4 nidx=null parent=7J9BK]
 + Epacromia famulus (Fabricius, 1798) [SYNONYM SPECIES 281824:BVMJD nidx=null parent=7J9BK]
Ephippigera perforata
 - Ephippigera perforata [SYNONYM SPECIES 278910:BT27D nidx=null parent=6G27D]
 + Ephippigera perforata (Rossius, 1790) [SYNONYM SPECIES 281824:6FQ8C nidx=null parent=6G27D]
Ephippigera verticalis
 - Ephippigera verticalis [SYNONYM SPECIES 278910:8P9LP nidx=null parent=6FQ77]
 + Ephippigera verticalis Fieber, 1853 [SYNONYM SPECIES 281824:6G287 nidx=null parent=6FQ77]
Ephippigerida cavannae
 - Ephippigerida cavannae [SYNONYM SPECIES 278910:8PYQ9 nidx=null parent=6FPW6]
 + Ephippigerida cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281824:BVMJG nidx=null parent=6FPW6]
Ephippigerida verticalis
 - Ephippigerida verticalis [SYNONYM SPECIES 278910:8P9LQ nidx=null parent=6FQ77]
 + Ephippigerida verticalis (Fieber, 1853) [SYNONYM SPECIES 281824:6FPY3 nidx=null parent=6FQ77]
Eremobelba breviseta
 - Eremobelba breviseta Balogh, 1958 [ACCEPTED SPECIES 278910:6GFCQ nidx=null]
 + Eremobelba breviseta Balogh, 1968 [ACCEPTED SPECIES 281824:BVMKX nidx=null]
Ericoideae
 - Ericoideae Link [ACCEPTED SUBFAMILY 278910:BMJW6 nidx=null]
 + Ericoideae Arn. [ACCEPTED SUBFAMILY 281824:JJP nidx=null]
Eriopisella chieregoi
 - Eriopisella chieregoi Ruffo, 1985 [ACCEPTED SPECIES 278910:3B5G8 nidx=null]
 + Eriopisella chieregoi Ruffo, 1983 [ACCEPTED SPECIES 281824:BVMLY nidx=null]
Erpodium coronatum
 - Erpodium coronatum (Hook. & Wilson) Mitt. [SYNONYM SPECIES 278910:3B9GZ nidx=null parent=9VVRC]
 + Erpodium coronatum (Hook. & Wilson) Spruce [SYNONYM SPECIES 281824:BVCGR nidx=null parent=9VVRC]
Erythrodontium cylindricaule
 - Erythrodontium cylindricaule (Müll. Hal.) Müll. Hal. [SYNONYM SPECIES 278910:9S3QF nidx=null parent=3BDT8]
 + Erythrodontium cylindricaule (Müll. Hal.) Paris [SYNONYM SPECIES 281824:BVMJF nidx=null parent=3BDT8]
Erythropaloideae
 - Erythropaloideae (Tiegh.) Y.R.Ling [SYNONYM UNRANKED 278910:628J2 nidx=null parent=9VD]
 + Erythropaloideae Hassk. [SYNONYM UNRANKED 281824:BVBCD nidx=null parent=9VD]
Etyoida
 - Etyoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BDJKF nidx=null]
 + Etyoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281824:BVS44 nidx=null]
Eubrachyura
 - Eubrachyura de Saint Laurent, 1980 [ACCEPTED OTHER 278910:8PS7Q nidx=null]
 + Eubrachyura de Saint Laurent, 1980 [ACCEPTED SECTION_ZOOLOGY 281824:B94FL nidx=null]
Eumigus monticulus
 - Eumigus monticulus [SYNONYM SPECIES 278910:8PYTG nidx=null parent=6H8WN]
 + Eumigus monticulus Rambur, 1838 [SYNONYM SPECIES 281824:BVMQJ nidx=null parent=6H8WN]
Eupatoriaceae
 - Eupatoriaceae Martynov [SYNONYM UNRANKED 278910:9Y2 nidx=null parent=622TP]
 + Eupatoriaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8JC nidx=null parent=622TP]
Euptyctima
 - Euptyctima Grandjean, 1967 [ACCEPTED OTHER 278910:8P4B2 nidx=null]
 + Euptyctima Grandjean, 1967 [ACCEPTED SECTION_ZOOLOGY 281824:BVFJ3 nidx=null]
Eurepa
 - Eurepa [SYNONYM GENUS 278910:8NRND nidx=null parent=8NVMW]
 + Eurepa Robillard, 2004 [ACCEPTED INFRATRIBE 281824:BV9LB nidx=null]
Eurhynchium boscii
 - Eurhynchium boscii (Schwägr.) A. Jaeger [SYNONYM SPECIES 278910:9W78Q nidx=null parent=5WST5]
 + Eurhynchium boscii (Schwägr.) Austin [SYNONYM SPECIES 281824:BVTYN nidx=null parent=5WST5]
Eurhynchium sullivantii
 - Eurhynchium sullivantii (Spruce) A. Jaeger [SYNONYM SPECIES 278910:9S3ZX nidx=null parent=9TJPV]
 + Eurhynchium sullivantii (Spruce) Austin [SYNONYM SPECIES 281824:BVTYQ nidx=null parent=9TJPV]
Europrosopon aculeatum
 - Europrosopon aculeatum (von Meyer, 1857) [ACCEPTED SPECIES 278910:B53VS nidx=null]
 + Europrosopon aculeatum (von Meyer, 1860) [SYNONYM SPECIES 281824:BVTYY nidx=null parent=BW5LF]
Exorides festivus
 - Exorides festivus Marshall, 1951 [ACCEPTED SPECIES 278910:B6P4N nidx=null]
 + Exorides festivus Marshall, 1952 [ACCEPTED SPECIES 281824:3DPR4 nidx=null]
Flexitrichaceae
 - Flexitrichaceae Ignatov & Fedosov [ACCEPTED FAMILY 278910:9KTGC nidx=null]
 + Flexitrichaceae Ignatov & Fedosov ex D. Bell & Goffinet [ACCEPTED FAMILY 281824:BVG6Q nidx=null]
Fortimesus concinnus
 - Fortimesus concinnus (Birstein, 1960) [ACCEPTED SPECIES 278910:6JKFY nidx=null]
 + Fortimesus concinnus (Birstein, 1971) [ACCEPTED SPECIES 281824:BVMX6 nidx=null]
Foveolatacris quinghaiensis
 - Foveolatacris quinghaiensis [SYNONYM SPECIES 278910:8PYYC nidx=null parent=443RV]
 + Foveolatacris quinghaiensis (Yin, 1984) [SYNONYM SPECIES 281824:BVMXP nidx=null parent=443RV]
Galumna (Erogalumna) zeucta
 - Galumna (Erogalumna) zeucta (Grandjean, 1964) [ACCEPTED SPECIES 278910:3F7BW nidx=null]
 + Galumna (Erogalumna) zeucta (Grandjean, 1966) [ACCEPTED SPECIES 281824:BVMZH nidx=null]
Gampsocleis sedakowi
 - Gampsocleis sedakowi [SYNONYM SPECIES 278910:8PYYJ nidx=null parent=7K53C]
 + Gampsocleis sedakowi Fischer von Waldheim, 1846 [SYNONYM SPECIES 281824:BVMZP nidx=null parent=7K53C]
Gelastorhinus liaoningensis
 - Gelastorhinus liaoningensis Wang, 2007 [ACCEPTED SPECIES 278910:3FHKX nidx=null]
 + Gelastorhinus liaoningensis Lu, Wang & Ren, 2013 [ACCEPTED SPECIES 281824:3FHKY nidx=null]
Gemmula (Pinguigemmula) thielei
 - Gemmula (Pinguigemmula) thielei Finlay, 1930 [SYNONYM SPECIES 278910:BV3MX nidx=null parent=7QWB3]
 + Gemmula (Pinguigemmula) thielei Finlay, 1930 [SYNONYM SPECIES 281824:BW587 nidx=null parent=7QWB3]
Gibbula pennanti
 - Gibbula pennanti (R. A. Philippi, 1846) [SYNONYM SPECIES 278910:3FZLX nidx=null parent=52G3B]
 + Gibbula pennanti (R. A. Philippi, 1851) [SYNONYM SPECIES 281824:BVN54 nidx=null parent=BVTGK]
Glyphocarpa comosa
 - Glyphocarpa comosa Hampe [SYNONYM SPECIES 278910:9VWLQ nidx=null parent=9SP9D]
 + Glyphocarpa comosa Hampe ex A. Jaeger [SYNONYM SPECIES 281824:BVV5R nidx=null parent=9SP9D]
Gomphrenoideae
 - Gomphrenoideae [SYNONYM UNRANKED 278910:BRWQV nidx=null parent=JM4]
 + Gomphrenoideae Lindl. [ACCEPTED SUBFAMILY 281824:BVBCH nidx=null]
Goniogryllus cirilinears
 - Goniogryllus cirilinears [SYNONYM SPECIES 278910:BV6PQ nidx=null parent=BV6KL]
 + Goniogryllus cirilinears Xie, 2005 [SYNONYM SPECIES 281824:BW5C5 nidx=null parent=BV6KL]
Goniogryllus potanini
 - Goniogryllus potanini [SYNONYM SPECIES 278910:8PZ34 nidx=null parent=3GWTQ]
 + Goniogryllus potanini Bey-Bienko, 1956 [SYNONYM SPECIES 281824:BVND4 nidx=null parent=3GWTQ]
Grandaxinaea
 - Grandaxinaea Powell, 1979 [SYNONYM GENUS 278910:BGFHC nidx=null parent=7PK7X]
 + Grandaxinaea A. W. B. Powell, 1976 [SYNONYM GENUS 281824:BVDXX nidx=null parent=7PK7X]
Greenidea (Greenidea) decaspermi
 - Greenidea (Greenidea) decaspermi [ACCEPTED SPECIES 278910:BFQVM nidx=null]
 + Greenidea (Greenidea) decaspermi [ACCEPTED SPECIES 281824:BVN4R nidx=null]
Greenidea (Paragreenidea) viticola
 - Greenidea (Paragreenidea) viticola [ACCEPTED SPECIES 278910:3HBZT nidx=null]
 + Greenidea (Paragreenidea) viticola [ACCEPTED SPECIES 281824:BVNF4 nidx=null]
Grimmia funalis
 - Grimmia funalis (Schwägr.) Bruch & Schimp. [ACCEPTED SPECIES 278910:6KSP6 nidx=null]
 + Grimmia funalis (Schwägr.) Bruch ex De Not. [ACCEPTED SPECIES 281824:BV9M5 nidx=null]
Gryllus (Locusta) sanguinolentus
 - Gryllus (Locusta) sanguinolentus [SYNONYM SPECIES 278910:8PBRZ nidx=null parent=7KW97]
 + Gryllus (Locusta) sanguinolentus (De Geer, 1773) [SYNONYM SPECIES 281824:BVNGF nidx=null parent=7KW97]
Gymnanthereae
 - Gymnanthereae Venter [SYNONYM UNRANKED 278910:628DM nidx=null parent=93MYX]
 + Gymnanthereae Y.Tsiang & P.T.Li [SYNONYM UNRANKED 281824:BVBFG nidx=null parent=93MYX]
Gymnodinium lohmannii
 - Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 278910:BSM7Z nidx=null parent=6KV8Q]
 + Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 281824:BVCP9 nidx=null parent=6KV8Q]
 + Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 281824:BVCPB nidx=null parent=3HRSS]
Gymnogryllus elegans
 - Gymnogryllus elegans [SYNONYM SPECIES 278910:8PBXJ nidx=null parent=3HSL6]
 + Gymnogryllus elegans (Guérin-Méneville, 1834) [SYNONYM SPECIES 281824:3HSKT nidx=null parent=3HSL6]
Gymnopleura
 - Gymnopleura Bourne, 1922 [SYNONYM OTHER 278910:BSQ4R nidx=null parent=7NKT5]
 + Gymnopleura Bourne, 1922 [SYNONYM SUBSECTION_ZOOLOGY 281824:BBRYG nidx=null parent=7NKT5]
Gymnostomum rupestre f. stelligerum
 - Gymnostomum rupestre f. stelligerum (Dicks.) Mönk. [SYNONYM FORM 278910:9T9MF nidx=null parent=9LMBR]
 + Gymnostomum rupestre f. stelligerum (Dicks.) Ångstr. [SYNONYM FORM 281824:BW2C7 nidx=null parent=9LMBR]
Haematoloechus abbreviatus
 - Haematoloechus abbreviatus (Bychowsky, 1932) Prokopic & Krivanec, 1974 [ACCEPTED SPECIES 278910:9Z88R nidx=null]
 + Haematoloechus abbreviatus (Bychowsky, 1932) Odening, 1958 [ACCEPTED SPECIES 281824:BVV73 nidx=null]
Haematoloechus complexus
 - Haematoloechus complexus (Seely, 1906) Ingles, 1932 [ACCEPTED SPECIES 278910:9Z88Y nidx=null]
 + Haematoloechus complexus (Seely, 1906) Krull, 1933 [ACCEPTED SPECIES 281824:BVV75 nidx=null]
Haematoloechus freitasi
 - Haematoloechus freitasi Mañé-Garzón & Gil, 1959 [ACCEPTED SPECIES 278910:B2MDP nidx=null]
 + Haematoloechus freitasi Mañé-Garzón & Gil Solares, 1961 [ACCEPTED SPECIES 281824:BVV76 nidx=null]
Haematoloechus iturbei
 - Haematoloechus iturbei (Cordero & Vogelsang, 1939) Yamaguti, 1958 [ACCEPTED SPECIES 278910:B3D3D nidx=null]
 + Haematoloechus iturbei (Cordero & Vogelsang, 1939) Walton, 1948 [ACCEPTED SPECIES 281824:BVV77 nidx=null]
Haematoloechus japonicus
 - Haematoloechus japonicus (Yamaguti, 1936) Odening, 1960 [ACCEPTED SPECIES 278910:B3D5K nidx=null]
 + Haematoloechus japonicus (Yamaguti, 1936) Walton, 1948 [ACCEPTED SPECIES 281824:BVV78 nidx=null]
Haematoloechus jeholensis
 - Haematoloechus jeholensis (Fukui & Ogata, 1938) Odening, 1960 [ACCEPTED SPECIES 278910:B3D2P nidx=null]
 + Haematoloechus jeholensis (Fukui & Ogata, 1938) Odening, 1958 [ACCEPTED SPECIES 281824:BVV79 nidx=null]
Haematoloechus lobatus
 - Haematoloechus lobatus Seno, 1907 [ACCEPTED SPECIES 278910:9Z897 nidx=null]
 + Haematoloechus lobatus (Seno, 1907) Walton, 1948 [ACCEPTED SPECIES 281824:BVV7B nidx=null]
Haematoloechus parviplexus
 - Haematoloechus parviplexus (Irwin, 1929) Ingles, 1932 [ACCEPTED SPECIES 278910:9XTL9 nidx=null]
 + Haematoloechus parviplexus (Irwin, 1929) Harwood, 1932 [ACCEPTED SPECIES 281824:BVNJC nidx=null]
Haematoloechus schulzei
 - Haematoloechus schulzei (Wundsch, 1911) Odening, 1960 [ACCEPTED SPECIES 278910:B2LL7 nidx=null]
 + Haematoloechus schulzei (Wundsch, 1911) Odening, 1958 [ACCEPTED SPECIES 281824:BVV7F nidx=null]
Haematoloechus sibiricus
 - Haematoloechus sibiricus (Isaichikov, 1927) Yamaguti, 1958 [ACCEPTED SPECIES 278910:9Z89R nidx=null]
 + Haematoloechus sibiricus (Issaitschikov, 1927) Teixeira de Freitas & Lent, 1939 [ACCEPTED SPECIES 281824:BVV7G nidx=null]
Haldorus (Haldorus) beieri
 - Haldorus (Haldorus) beieri Linnavuori, 1955 [SYNONYM SPECIES 278910:BT3CD nidx=null parent=B7VLS]
 + Haldorus (Haldorus) beieri Linnavuori, 1955 [SYNONYM SPECIES 281824:BVNJL nidx=null parent=B7VLS]
Haliotis (Sulculus) diversicolor diversicolor
 - Haliotis (Sulculus) diversicolor diversicolor Reeve, 1846 [SYNONYM SUBSPECIES 278910:5HL4Y nidx=null parent=7TVTR]
 + Haliotis (Sulculus) diversicolor diversicolor Reeve, 1846 [SYNONYM SUBSPECIES 281824:BVFWD nidx=null parent=BNHK9]
Haplomesus concinnus
 - Haplomesus concinnus Birstein, 1960 [SYNONYM SPECIES 278910:3JMW6 nidx=null parent=6JKFY]
 + Haplomesus concinnus Birstein, 1971 [SYNONYM SPECIES 281824:BVNLY nidx=null parent=BVMX6]
Haplothrips (Trybomiella) ramakrishnai
 - Haplothrips (Trybomiella) ramakrishnai Karny, 1926 [ACCEPTED SPECIES 278910:3JPTP nidx=null]
 + Haplothrips (Trybomiella) ramakrishnai Karny, 1926 [ACCEPTED SPECIES 281824:BVNM4 nidx=null]
Haustorius arenarius
 - Haustorius arenarius Holmes, 1905 [AMBIGUOUS_SYNONYM SPECIES 278910:3JWGX nidx=null parent=75PV9]
 + Haustorius arenarius (Slabber, 1769) [SYNONYM SPECIES 281824:BVNBG nidx=null parent=75PV9]
Heliacus (Heliacus) areola bicanaliculatus
 - Heliacus (Heliacus) areola bicanaliculatus (Valenciennes, 1832) [SYNONYM SUBSPECIES 278910:8VBCH nidx=null parent=7H72Z]
 + Heliacus (Heliacus) areola bicanaliculatus (Valenciennes, 1832) [SYNONYM SUBSPECIES 281824:BVWLV nidx=null parent=BNHPR]
Helianthaceae
 - Helianthaceae Dumort. [SYNONYM UNRANKED 278910:6252V nidx=null parent=622TP]
 + Helianthaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8JT nidx=null parent=622TP]
Helix alpha
 - Helix alpha Reeve, 1852 [SYNONYM SPECIES 278910:BBJYX nidx=null parent=64ZSL]
 + Helix alpha L. Pfeiffer, 1853 [SYNONYM SPECIES 281824:7RKHR nidx=null parent=64ZSL]
Helix bataviana
 - Helix bataviana von dem Busch, 1842 [SYNONYM SPECIES 278910:84WYR nidx=null parent=B879F]
 + Helix bataviana L. Pfeiffer, 1842 [SYNONYM SPECIES 281824:7RKQR nidx=null parent=7R685]
Helix gemina
 - Helix gemina von dem Busch, 1842 [SYNONYM SPECIES 278910:84WZF nidx=null parent=3KRVC]
 + Helix gemina Philippi, 1842 [SYNONYM SPECIES 281824:BVNSW nidx=null parent=3KRVC]
Herniaria hirsuta
 - Herniaria hirsuta [AMBIGUOUS_SYNONYM SPECIES 278910:7VCX9 nidx=null parent=3L2KK]
 + Herniaria hirsuta d'Urv. [AMBIGUOUS_SYNONYM SPECIES 281824:BVCR8 nidx=null parent=3L2KK]
Heterocaryum
 - Heterocaryum A. DC. [ACCEPTED GENUS 278910:7PK29 nidx=null]
 + Heterocaryum A.DC. [SYNONYM UNRANKED 281824:7MZJ4 nidx=null parent=7Q4C]
Heterocaryum echinophorum
 - Heterocaryum echinophorum (Pall.) Brand [ACCEPTED SPECIES 278910:7VTF8 nidx=null]
 + Heterocaryum echinophorum (Pall.) Brand [SYNONYM SPECIES 281824:3L7ZN nidx=null parent=BW6MR]
Heterocaryum laevigatum
 - Heterocaryum laevigatum (Kar. & Kir.) A. DC. [ACCEPTED SPECIES 278910:7VTFC nidx=null]
 + Heterocaryum laevigatum (Kar. & Kir.) A. DC. [SYNONYM SPECIES 281824:3L7ZR nidx=null parent=BW5NG]
Heteropternis quineensis
 - Heteropternis quineensis [SYNONYM SPECIES 278910:8PZHR nidx=null parent=3LCTY]
 + Heteropternis quineensis Blanchard, 1853 [SYNONYM SPECIES 281824:BVNXD nidx=null parent=3LCTY]
Heterotremata
 - Heterotremata Guinot, 1977 [ACCEPTED OTHER 278910:8PS7R nidx=null]
 + Heterotremata Guinot, 1977 [ACCEPTED SUBSECTION_ZOOLOGY 281824:BVFJ6 nidx=null]
Hexaplex (Hexaplex) kusterianus kusterianus
 - Hexaplex (Hexaplex) kusterianus kusterianus [SYNONYM SUBSPECIES 278910:BTLLR nidx=null parent=7H8RZ]
 + Hexaplex (Hexaplex) kusterianus kusterianus [SYNONYM SUBSPECIES 281824:BVZPZ nidx=null parent=7H8RZ]
Hiatea
 - Hiatea Menzies [SYNONYM UNRANKED 278910:BBZJF nidx=null parent=B8XN7]
 + Hiatea Menzies ex Hook. [SYNONYM UNRANKED 281824:BW2P3 nidx=null parent=B8XN7]
Hieracium lachenalii subsp. lepidiceps
 - Hieracium lachenalii subsp. lepidiceps (Dahlst.) Greuter [ACCEPTED SUBSPECIES 278910:BNJ9Z nidx=null]
 + Hieracium lachenalii subsp. lepidiceps (Dahlst.) Zahn [ACCEPTED SUBSPECIES 281824:BVWM7 nidx=null]
Hieracium umbrosum subsp. pseudopollichiae
 - Hieracium umbrosum subsp. pseudopollichiae [SYNONYM SUBSPECIES 278910:BPSM4 nidx=null parent=7K6Y8]
 + Hieracium umbrosum subsp. pseudopollichiae Oborny & Zahn [SYNONYM SUBSPECIES 281824:BVZR6 nidx=null parent=7K6Y8]
Hieracium vulgatum subsp. amaurochlorum
 - Hieracium vulgatum subsp. amaurochlorum Zahn [SYNONYM SUBSPECIES 278910:5HXX3 nidx=null parent=7K6ZK]
 + Hieracium vulgatum subsp. amaurochlorum Zahn ex Heimerl [SYNONYM SUBSPECIES 281824:BVZR7 nidx=null parent=7K6ZK]
Hippopsis (Hippopsis) lemniscata
 - Hippopsis (Hippopsis) lemniscata [AMBIGUOUS_SYNONYM SPECIES 278910:BSHMJ nidx=null parent=3M2S5]
 + Hippopsis (Hippopsis) lemniscata [AMBIGUOUS_SYNONYM SPECIES 281824:BV9SF nidx=null parent=3M2S5]
Homalia gracilis
 - Homalia gracilis James [SYNONYM SPECIES 278910:9S7VL nidx=null parent=9KWNL]
 + Homalia gracilis James ex Peck [SYNONYM SPECIES 281824:BVVBZ nidx=null parent=9KWNL]
Homalothecium bonplandii
 - Homalothecium bonplandii A. Jaeger [SYNONYM SPECIES 278910:9TJNQ nidx=null parent=4C3MM]
 + Homalothecium bonplandii Spruce [SYNONYM SPECIES 281824:BVVC2 nidx=null parent=4C3MM]
Homolidea
 - Homolidea De Haan, 1839 [SYNONYM OTHER 278910:BBRYH nidx=null parent=7NHV8]
 + Homolidea De Haan, 1839 [SYNONYM SUBSECTION_ZOOLOGY 281824:BVS49 nidx=null parent=7NHV8]
Homoloida
 - Homoloida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRH5V nidx=null]
 + Homoloida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281824:BDM5P nidx=null]
Humirioideae
 - Humirioideae Winkler [SYNONYM UNRANKED 278910:9WGS5 nidx=null parent=B6W]
 + Humirioideae Arn. [SYNONYM UNRANKED 281824:BW2P9 nidx=null parent=B6W]
Hyalopterus amygdalus
 - Hyalopterus amygdalus [SYNONYM SPECIES 278910:BMM3C nidx=null parent=6MGL6]
 + Hyalopterus amygdalus [SYNONYM SPECIES 281824:BVG7H nidx=null parent=6MGL6]
Hydrichthyidae
 - Hydrichthyidae [PROVISIONALLY_ACCEPTED FAMILY 278910:B85 nidx=null]
 - Hydrichthyidae [SYNONYM FAMILY 278910:BDWQG nidx=null parent=7NK9Q]
 + Hydrichthyidae Stechow, 1922 [SYNONYM FAMILY 281824:BV9C4 nidx=null parent=7NK9Q]
Hydrozetes tamarae
 - Hydrozetes tamarae Toslstikov, 1996 [ACCEPTED SPECIES 278910:6MKG5 nidx=null]
 + Hydrozetes tamarae Tolstikov, 1996 [ACCEPTED SPECIES 281824:BVP46 nidx=null]
Hygroecia
 - Hygroecia Mulsant & Rey, 1875 [SYNONYM GENUS 278910:BSJ6K nidx=null parent=9JBFK]
 + Hygroecia Mulsant & Rey, 1874 [SYNONYM GENUS 281824:BVBB8 nidx=null parent=9JBFK]
 + Hygroecia Mulsant & Rey, 1875 [SYNONYM GENUS 281824:BVBB9 nidx=null parent=9JBFK]
 + Hygroecia Mulsant & Rey, 1873 [SYNONYM GENUS 281824:BVBBB nidx=null parent=9JBFK]
Hyleoglomeris modiglianii
 - Hyleoglomeris modiglianii (Silvestri, 1895) [SYNONYM SPECIES 278910:7WPK9 nidx=null parent=FMBX]
 + Hyleoglomeris modiglianii (Silvestri, 1895) [ACCEPTED SPECIES 281824:6MNTW nidx=null]
Hymenozetes mirabilis
 - Hymenozetes mirabilis Balogh, 1964 [ACCEPTED SPECIES 278910:3NLP4 nidx=null]
 + Hymenozetes mirabilis Balogh, 1963 [ACCEPTED SPECIES 281824:BVP4L nidx=null]
Hyperomyzus (Hyperomyzella) rhinanthi
 - Hyperomyzus (Hyperomyzella) rhinanthi (Schouteden, 1903) [ACCEPTED SPECIES 278910:3NR5R nidx=null]
 + Hyperomyzus (Hyperomyzella) rhinanthi (Schouteden, 1903) [ACCEPTED SPECIES 281824:BVNSZ nidx=null]
Hyperomyzus (Hyperomyzus) lactucae
 - Hyperomyzus (Hyperomyzus) lactucae (Linnaeus, 1758) [ACCEPTED SPECIES 278910:3NR5V nidx=null]
 + Hyperomyzus (Hyperomyzus) lactucae (Linnaeus, 1758) [ACCEPTED SPECIES 281824:BVCCY nidx=null]
Hypnum exiguum
 - Hypnum exiguum Blandow [AMBIGUOUS_SYNONYM SPECIES 278910:9S9Z9 nidx=null parent=4STMS]
 + Hypnum exiguum Blandow ex Schultz [AMBIGUOUS_SYNONYM SPECIES 281824:BVVDT nidx=null parent=4STMS]
Hypnum glareosum
 - Hypnum glareosum Bruch ex Spruce [SYNONYM SPECIES 278910:9SB53 nidx=null parent=N2XZ]
 + Hypnum glareosum Bruch & Schimp. ex Fiedl. [SYNONYM SPECIES 281824:BVVDX nidx=null parent=N2XZ]
Hypnum muticum
 - Hypnum muticum Sw. ex DC. [SYNONYM SPECIES 278910:9SBMG nidx=null parent=6VRJ5]
 + Hypnum muticum Sw. ex Blandow [SYNONYM SPECIES 281824:BVVDZ nidx=null parent=6VRJ5]
Hypnum salicicola
 - Hypnum salicicola Mitt. ex Spruce [SYNONYM SPECIES 278910:9SC37 nidx=null parent=4ZWC4]
 + Hypnum salicicola Spruce ex Mitt. [SYNONYM SPECIES 281824:BVVF4 nidx=null parent=4ZWC4]
Ibidion (Brydaeon) comatum
 - Ibidion (Brydaeon) comatum [SYNONYM SPECIES 278910:BRW75 nidx=null parent=43JJ4]
 + Ibidion (Brydaeon) comatum [SYNONYM SPECIES 281824:BVP5V nidx=null parent=43JJ4]
Indopacifica taiyo
 - Indopacifica taiyo Tobias et al., 2021 [ACCEPTED SPECIES 278910:8TBJB nidx=null]
 + Indopacifica taiyo Pfingstl, Shimano & Hiruta, 2021 [ACCEPTED SPECIES 281824:BVP87 nidx=null]
Indopacifica tyida
 - Indopacifica tyida Tobias et al., 2021 [ACCEPTED SPECIES 278910:8T9YR nidx=null]
 + Indopacifica tyida Pfingstl, Shimano & Hiruta, 2021 [ACCEPTED SPECIES 281824:BVP88 nidx=null]
Indopecten misolensis
 - Indopecten misolensis (Wanner, 1910) [ACCEPTED SPECIES 278910:B6FCV nidx=null]
 + Indopecten misolensis (Jaworski, 1915) [ACCEPTED SPECIES 281824:BVVJ7 nidx=null]
Inulaceae
 - Inulaceae Bessey [SYNONYM UNRANKED 278910:624VL nidx=null parent=622TP]
 + Inulaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8K5 nidx=null parent=622TP]
Inversotyphlus lobifer
 - Inversotyphlus lobifer (Attems, 1951) [SYNONYM SPECIES 278910:8MZZW nidx=null parent=8N5J9]
 + Inversotyphlus lobifer (Attems, 1951) [ACCEPTED SPECIES 281824:3PTHQ nidx=null]
Iresine completa
 - Iresine completa Uline & W. L. Bray [AMBIGUOUS_SYNONYM SPECIES 278910:3PYSH nidx=null parent=768RV]
 + Iresine completa Uline & W. L. Bray [SYNONYM SPECIES 281824:3PYSG nidx=null parent=768RV]
Ischnacrida convergens
 - Ischnacrida convergens [SYNONYM SPECIES 278910:8PCGL nidx=null parent=3THC2]
 + Ischnacrida convergens (Walker, 1870) [SYNONYM SPECIES 281824:3Q49C nidx=null parent=7JYM2]
Isophya camptoxipha
 - Isophya camptoxipha [SYNONYM SPECIES 278910:8PCHV nidx=null parent=3QB5X]
 + Isophya camptoxipha Fieber, 1853 [SYNONYM SPECIES 281824:BVNXY nidx=null parent=3QB5X]
Isotheciopsis formosica
 - Isotheciopsis formosica Broth. & Yasuda [SYNONYM SPECIES 278910:9SCZ7 nidx=null parent=39C2K]
 + Isotheciopsis formosica Broth. & Yasuda ex Ihsiba [SYNONYM SPECIES 281824:BVVK4 nidx=null parent=39C2K]
Jaera marina
 - Jaera marina (Fabricius, 1780) [SYNONYM SPECIES 278910:3QK66 nidx=null parent=6NDCM]
 + Jaera marina (Linnaeus, 1758) [SYNONYM SPECIES 281824:BVPB9 nidx=null parent=6NDCM]
Jasomenia sansibarica
 - Jasomenia sansibarica [SYNONYM SPECIES 278910:8PZN2 nidx=null parent=3QMV2]
 + Jasomenia sansibarica Karsch, 1896 [SYNONYM SPECIES 281824:BVPBN nidx=null parent=3QMV2]
Jassus (Deltocephalus) tenuis
 - Jassus (Deltocephalus) tenuis Germar, 1821 [SYNONYM SPECIES 278910:BT486 nidx=null parent=9K8B4]
 + Jassus (Deltocephalus) tenuis Germar, 1821 [SYNONYM SPECIES 281824:BVPCG nidx=null parent=9K8B4]
Jassus sexnotatus var. e
 - Jassus sexnotatus var. e Herrich-Schäffer, 1838 [SYNONYM VARIETY 278910:BKCD9 nidx=null parent=9KG8J]
 + Jassus sexnotatus var. e Herrich-Schäffer, 1838 [SYNONYM VARIETY 281824:BG3NP nidx=null parent=9KG8J]
Kalanchoeae
 - Kalanchoeae (A.Berger) 't Hart [SYNONYM UNRANKED 278910:KWX nidx=null parent=9VDV3]
 + Kalanchoeae Small [SYNONYM UNRANKED 281824:BVBFM nidx=null parent=JRT]
Korobkovitrigonia godini
 - Korobkovitrigonia godini Burkova, 1965 [ACCEPTED SPECIES 278910:7RSHR nidx=null]
 + Korobkovitrigonia godini Burkova, 1963 [ACCEPTED SPECIES 281824:BVPHT nidx=null]
Korobkovitrigonia romanovskaja
 - Korobkovitrigonia romanovskaja Burkova, 1965 [ACCEPTED SPECIES 278910:7RSHV nidx=null]
 + Korobkovitrigonia romanovskaja Burkova, 1963 [ACCEPTED SPECIES 281824:BVPHV nidx=null]
Kotorapecten kagamianus permirus
 - Kotorapecten kagamianus permirus (Masuda, 1958) [ACCEPTED SUBSPECIES 278910:8RWRP nidx=null]
 + Kotorapecten kagamianus permirus (Yokoyama, 1926) [SYNONYM SUBSPECIES 281824:BVZRK nidx=null parent=B6DBY]
Kulievia paradecipiens
 - Kulievia paradecipiens (Kulijev, 1962) [ACCEPTED SPECIES 278910:3RFHV nidx=null]
 + Kulievia paradecipiens (Kulijev, 1967) [ACCEPTED SPECIES 281824:BVPHN nidx=null]
Laoma poecilosticta
 - Laoma poecilosticta (L. Pfeiffer, 1853) [SYNONYM SPECIES 278910:3S86C nidx=null parent=6VBZD]
 + Laoma poecilosticta (Reeve, 1852) [SYNONYM SPECIES 281824:BVPNT nidx=null parent=7SPMJ]
Latreillidea
 - Latreillidea Stimpson, 1858 [SYNONYM OTHER 278910:BSQ9K nidx=null parent=7NJ7Q]
 + Latreillidea Stimpson, 1858 [SYNONYM SUBSECTION_ZOOLOGY 281824:BBRYJ nidx=null parent=7NJ7Q]
Lecythocaris
 - Lecythocaris Von Meyer, 1858 [ACCEPTED GENUS 278910:9WWS8 nidx=null]
 + Lecythocaris von Meyer, 1860 [ACCEPTED GENUS 281824:BVRNL nidx=null]
Lembos processifer
 - Lembos processifer J.L. Barnard, 1965 [SYNONYM SPECIES 278910:3T4CQ nidx=null parent=LGXN]
 + Lembos processifer Pirlot, 1938 [SYNONYM SPECIES 281824:BVF3M nidx=null parent=LGXN]
Lembos waipio
 - Lembos waipio Ledoyer, 1972 [AMBIGUOUS_SYNONYM SPECIES 278910:3T4D8 nidx=null parent=LGWV]
 + Lembos waipio J.L. Barnard, 1970 [SYNONYM SPECIES 281824:BVPRQ nidx=null parent=LGWV]
Lepidopilum chloroneuron
 - Lepidopilum chloroneuron (Taylor) Lorentz [ACCEPTED SPECIES 278910:3TCLC nidx=null]
 + Lepidopilum chloroneuron (Taylor) Spruce [ACCEPTED SPECIES 281824:BVPS2 nidx=null]
Lepidopilum erectiusculum
 - Lepidopilum erectiusculum (Taylor) Mitt. [ACCEPTED SPECIES 278910:3TCLK nidx=null]
 + Lepidopilum erectiusculum (Taylor) Spruce [ACCEPTED SPECIES 281824:BVPS3 nidx=null]
Lepidopilum flexifolium
 - Lepidopilum flexifolium Mitt. [SYNONYM SPECIES 278910:9SFZC nidx=null parent=3TCMG]
 + Lepidopilum flexifolium (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVVTM nidx=null parent=3TCMG]
Lepidopilum grevilleanum
 - Lepidopilum grevilleanum Mitt. [SYNONYM SPECIES 278910:3TCLT nidx=null parent=9KF2Q]
 + Lepidopilum grevilleanum Spruce [SYNONYM SPECIES 281824:BVP6Q nidx=null parent=9KF2Q]
Lepidopilum membranaceum
 - Lepidopilum membranaceum (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9SG2K nidx=null parent=3Q8HJ]
 + Lepidopilum membranaceum (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVVTN nidx=null parent=3Q8HJ]
Lepidopilum patrisiae
 - Lepidopilum patrisiae (Brid.) Mitt. [SYNONYM SPECIES 278910:9SG2Z nidx=null parent=9K2T6]
 + Lepidopilum patrisiae (Brid.) Spruce [SYNONYM SPECIES 281824:BVVTP nidx=null parent=9K2T6]
Lepidopilum venustum
 - Lepidopilum venustum Mitt. [SYNONYM SPECIES 278910:9SG4P nidx=null parent=3K7ZG]
 + Lepidopilum venustum (Taylor ex Mitt.) Spruce [SYNONYM SPECIES 281824:BVVTQ nidx=null parent=3K7ZG]
Lepidozia novae-zelandiae var. heterostipa
 - Lepidozia novae-zelandiae var. heterostipa R.M. Schust. [ACCEPTED VARIETY 278910:5PQR8 nidx=null]
 + Lepidozia novae-zelandiae var. heterostipa R.M. Schust. ex J.J. Engel [ACCEPTED VARIETY 281824:BVFLR nidx=null]
Lepidozia novae-zelandiae var. minima
 - Lepidozia novae-zelandiae var. minima R.M. Schust. [ACCEPTED VARIETY 278910:5PQR9 nidx=null]
 + Lepidozia novae-zelandiae var. minima R.M. Schust. ex J.J. Engel [ACCEPTED VARIETY 281824:BVFLS nidx=null]
Leptodontium sulphureum var. panamense
 - Leptodontium sulphureum var. panamense Lorentz [SYNONYM VARIETY 278910:9TBJN nidx=null parent=9LQQH]
 + Leptodontium sulphureum var. panamense (A. Jaeger) Lorentz ex Paris [SYNONYM VARIETY 281824:BW2D7 nidx=null parent=9LQQH]
Leptoplana angusta
 - Leptoplana angusta Pearse, 1938 [SYNONYM SPECIES 278910:BT4S2 nidx=null parent=7W3SY]
 + Leptoplana angusta Pearse, 1938 [SYNONYM SPECIES 281824:BGXQK nidx=null parent=7W3SY]
 + Leptoplana angusta Pearse & Littler, 1938 [AMBIGUOUS_SYNONYM SPECIES 281824:BVPTC nidx=null parent=6HBJJ]
Leptura (Leptura) maculicornis
 - Leptura (Leptura) maculicornis [SYNONYM SPECIES 278910:BRQW3 nidx=null parent=4CRCB]
 + Leptura (Leptura) maculicornis [SYNONYM SPECIES 281824:BVPVH nidx=null parent=4CRCB]
Lepyrodon tomentosus
 - Lepyrodon tomentosus (Hook.) Mitt. [ACCEPTED SPECIES 278910:6PPR4 nidx=null]
 + Lepyrodon tomentosus (Hook.) Spruce [ACCEPTED SPECIES 281824:BVP86 nidx=null]
Lernaeenicinae
 - Lernaeenicinae Wilson C.B., 1917 [ACCEPTED GENUS 278910:7ZFS5 nidx=null]
 + Lernaeenicinae Wilson C.B., 1917 [SYNONYM SUBFAMILY 281824:BVCSJ nidx=null parent=7NKDC]
Leuenbergerioideae
 - Leuenbergerioideae [ACCEPTED SUBFAMILY 278910:8SFHW nidx=null]
 + Leuenbergerioideae Mayta & Molinari [ACCEPTED SUBFAMILY 281824:BVBCP nidx=null]
Leuzea
 - Leuzea DC. [ACCEPTED GENUS 278910:5TC3J nidx=null]
 + Leuzea DC. [SYNONYM UNRANKED 281824:BV9R2 nidx=null parent=BV8WZ]
Liacarus gammatus gammatus
 - Liacarus gammatus gammatus Choi, 1994 [ACCEPTED SUBSPECIES 278910:5JCJY nidx=null]
 + Liacarus gammatus gammatus Aoki, 1967 [ACCEPTED SUBSPECIES 281824:BVZT4 nidx=null]
Limonium proliferum
 - Limonium proliferum [ACCEPTED SPECIES 278910:72DSK nidx=null]
 + Limonium proliferum (d'Urv.) Erben & Brullo [ACCEPTED SPECIES 281824:BVP9C nidx=null]
Limotettix sexnotatus var. e
 - Limotettix sexnotatus var. e Sahlberg, 1871 [SYNONYM VARIETY 278910:BPH8K nidx=null parent=9KG8J]
 + Limotettix sexnotatus var. e Sahlberg, 1871 [SYNONYM VARIETY 281824:BGZ54 nidx=null parent=9KG8J]
Linarieae
 - Linarieae (Rouy) Betsche [SYNONYM UNRANKED 278910:7NM7R nidx=null parent=7NLMH]
 + Linarieae Parl. [SYNONYM UNRANKED 281824:BVBFP nidx=null parent=BVBB6]
Lindigia aciculata
 - Lindigia aciculata (Taylor) Hampe [SYNONYM SPECIES 278910:9LRG6 nidx=null parent=64Z49]
 + Lindigia aciculata (Taylor) Spruce [SYNONYM SPECIES 281824:BVVYX nidx=null parent=64Z49]
Lindsaeaceae
 - Lindsaeaceae C. Presl [ACCEPTED FAMILY 278910:B8WVZ nidx=null]
 + Lindsaeaceae M. R. Schomb. [ACCEPTED FAMILY 281824:BV8KD nidx=null]
Linnaeoideae
 - Linnaeoideae (Dumort.) P. F. Stevens [ACCEPTED SUBFAMILY 278910:JTR nidx=null]
 + Linnaeoideae Raf. [ACCEPTED SUBFAMILY 281824:BVBCR nidx=null]
Liopsalis klipsteini
 - Liopsalis klipsteini von Meyer, 1862 [ACCEPTED SPECIES 278910:BTRF4 nidx=null]
 + Liopsalis klipsteini (von Meyer, 1842) [ACCEPTED SPECIES 281824:BW3Q5 nidx=null]
Locusta fuscus
 - Locusta fuscus Fabricius, 1793 [SYNONYM SPECIES 278910:BT55D nidx=null parent=BSYGB]
 + Locusta fuscus Fabricius, 1793 [SYNONYM SPECIES 281824:BVQ5P nidx=null parent=BVKS6]
Locusta migratoroides
 - Locusta migratoroides [SYNONYM SPECIES 278910:8PZTY nidx=null parent=7JZG5]
 + Locusta migratoroides Reiche & Fairmaire, 1849 [SYNONYM SPECIES 281824:BVQ6B nidx=null parent=7JZG5]
Lomoporotrichum
 - Lomoporotrichum Müll. Hal. [SYNONYM GENUS 278910:9TV88 nidx=null parent=9KVMM]
 + Lomoporotrichum Müll. Hal. ex Kindb. [SYNONYM GENUS 281824:BVRNZ nidx=null parent=9KVMM]
Lomoporotrichum liliputanum
 - Lomoporotrichum liliputanum Müll. Hal. [SYNONYM SPECIES 278910:9SHT6 nidx=null parent=9VG6X]
 + Lomoporotrichum liliputanum Müll. Hal. ex Kindb. [SYNONYM SPECIES 281824:BVVZL nidx=null parent=9VG6X]
Lophozia atlantica var. asperrima
 - Lophozia atlantica var. asperrima Arnell [SYNONYM VARIETY 278910:9VCM4 nidx=null parent=6SX6M]
 + Lophozia atlantica var. asperrima (Arnell) Müll. Frib. [SYNONYM VARIETY 281824:BW2DC nidx=null parent=6SX6M]
Lophozia porphyroleuca
 - Lophozia porphyroleuca (Nees) Schiffn. [SYNONYM SPECIES 278910:9MV7N nidx=null parent=3W4TG]
 + Lophozia porphyroleuca (Nees) Schiffn. ex Dalla Torre & Sarnth. [SYNONYM SPECIES 281824:BVW2M nidx=null parent=3W4TG]
Lottia radians
 - Lottia radians G. B. Sowerby I, 1834 [SYNONYM SPECIES 278910:BH75K nidx=null parent=69H9P]
 + Lottia radians (Gmelin, 1791) [SYNONYM SPECIES 281824:BVW4G nidx=null parent=69H9P]
Louisianinidae
 - Louisianinidae [ACCEPTED FAMILY 278910:C7Q nidx=null]
 + Louisianinidae Denne & Sen Gupta, 1996 [ACCEPTED FAMILY 281824:BV8KF nidx=null]
Lycaena subunicolor
 - Lycaena subunicolor Pionneau, 1929 [AMBIGUOUS_SYNONYM SPECIES 278910:9FL6P nidx=null parent=3WHZM]
 + Lycaena subunicolor Pionneau, 1929 [AMBIGUOUS_SYNONYM SPECIES 281824:BVW5S nidx=null parent=3WHZM]
 + Lycaena subunicolor Pionneau, 1928 [AMBIGUOUS_SYNONYM SPECIES 281824:BVW5T nidx=null parent=3XDQQ]
Lycopodioideae
 - Lycopodioideae W. H. Wagner & Beitel ex B. Øllg. [ACCEPTED SUBFAMILY 278910:B8X3W nidx=null]
 + Lycopodioideae Eaton [ACCEPTED SUBFAMILY 281824:BVBCS nidx=null]
Lycopsis glomerata
 - Lycopsis glomerata [SYNONYM SPECIES 278910:3WN3J nidx=null parent=6MDB6]
 + Lycopsis glomerata d'Urv. [SYNONYM SPECIES 281824:BVQ84 nidx=null parent=6MDB6]
Lygaeus (Plociomera) sylvestris
 - Lygaeus (Plociomera) sylvestris (Linnaeus, 1758) [SYNONYM SPECIES 278910:BT5CD nidx=null parent=6PZ8L]
 + Lygaeus (Plociomera) sylvestris (Linnaeus, 1758) [SYNONYM SPECIES 281824:BVQ8Z nidx=null parent=6PZ8L]
Lygosoma (hinulia)smaragdinum var.viridifuscum
 - Lygosoma (hinulia)smaragdinum var.viridifuscum Peters, 1873 [SYNONYM UNRANKED 278910:8SJH9 nidx=null parent=3S4NN]
 + Lygosoma (hinulia)smaragdinum var.viridifuscum Peters, 1873 [SYNONYM UNRANKED 281824:BV99K nidx=null parent=3S4NN]
Macromitrium oblongum
 - Macromitrium oblongum (Taylor) Mitt. [ACCEPTED SPECIES 278910:3X6H5 nidx=null]
 + Macromitrium oblongum (Taylor) Spruce [ACCEPTED SPECIES 281824:BVQB8 nidx=null]
Macrosiphoniella (Macrosiphoniella) atrata
 - Macrosiphoniella (Macrosiphoniella) atrata [ACCEPTED SPECIES 278910:BT5FM nidx=null]
 + Macrosiphoniella (Macrosiphoniella) atrata [ACCEPTED SPECIES 281824:B79VF nidx=null]
Macrosiphoniella (Macrosiphoniella) tadshikana
 - Macrosiphoniella (Macrosiphoniella) tadshikana Narzikulov, 1958 [ACCEPTED SPECIES 278910:BT5G4 nidx=null]
 + Macrosiphoniella (Macrosiphoniella) tadshikana Narzikulov, 1958 [ACCEPTED SPECIES 281824:8PDF2 nidx=null]
Macrosiphum (Illinoia) galiophagum
 - Macrosiphum (Illinoia) galiophagum [SYNONYM SPECIES 278910:BT5JP nidx=null parent=3V46G]
 + Macrosiphum (Illinoia) galiophagum [SYNONYM SPECIES 281824:BVQFD nidx=null parent=3V46G]
Macrosiphum (Macrosiphum) funestum
 - Macrosiphum (Macrosiphum) funestum (Macchiati, 1885) [ACCEPTED SPECIES 278910:3X9ZH nidx=null]
 + Macrosiphum (Macrosiphum) funestum (Macchiati, 1885) [ACCEPTED SPECIES 281824:BVPH5 nidx=null]
Macrosiphum (Macrosiphum) pulcherimum
 - Macrosiphum (Macrosiphum) pulcherimum Nevsky, 1928 [ACCEPTED SPECIES 278910:6QRPJ nidx=null]
 + Macrosiphum (Macrosiphum) pulcherimum Nevsky, 1928 [ACCEPTED SPECIES 281824:BVQCG nidx=null]
Macrosiphum (Macrosiphum) yomogi
 - Macrosiphum (Macrosiphum) yomogi [ACCEPTED SPECIES 278910:6QS39 nidx=null]
 + Macrosiphum (Macrosiphum) yomogi [ACCEPTED SPECIES 281824:BVQCM nidx=null]
Macrosteles (Macrosteles) elongata
 - Macrosteles (Macrosteles) elongata Beirne, 1952 [SYNONYM SPECIES 278910:9KG7P nidx=null parent=8JW8C]
 + Macrosteles (Macrosteles) elongata Beirne, 1952 [SYNONYM SPECIES 281824:8JW8D nidx=null parent=8JW8C]
Macrosteles fasciifrons lindbergi
 - Macrosteles fasciifrons lindbergi Dlabola, 1963 [SYNONYM SUBSPECIES 278910:9RJFJ nidx=null parent=8JW9G]
 + Macrosteles fasciifrons lindbergi Dlabola, 1963 [SYNONYM SUBSPECIES 281824:BVZTN nidx=null parent=8JWDB]
Macrotoma (Zooblax) luzonum
 - Macrotoma (Zooblax) luzonum [AMBIGUOUS_SYNONYM SPECIES 278910:BT5KY nidx=null parent=5D77S]
 + Macrotoma (Zooblax) luzonum [AMBIGUOUS_SYNONYM SPECIES 281824:BVQGQ nidx=null parent=5D77S]
Madrepora lavandulina
 - Madrepora lavandulina Michelin, 1840 [SYNONYM SPECIES 278910:3XF8N nidx=null parent=9P2W]
 + Madrepora lavandulina Michelin, 1842 [SYNONYM SPECIES 281824:BVQJ7 nidx=null parent=BVFZM]
Matsumurasca (Matsumurasca)
 - Matsumurasca (Matsumurasca) Anufriev, 1973 [ACCEPTED SUBGENUS 278910:BSMJB nidx=null]
 + Matsumurasca (Matsumurasca) Anufriev, 1973 [ACCEPTED SUBGENUS 281824:8KMN2 nidx=null]
Meckelia aurantiaca
 - Meckelia aurantiaca [SYNONYM SPECIES 278910:3YKKG nidx=null parent=6PTN3]
 + Meckelia aurantiaca Grube, 1855 [SYNONYM SPECIES 281824:BVQK9 nidx=null parent=6PTN3]
Meteorium leucotrichum
 - Meteorium leucotrichum (Taylor) Mitt. [SYNONYM SPECIES 278910:9SKHW nidx=null parent=6ZG6P]
 + Meteorium leucotrichum (Taylor) Spruce [SYNONYM SPECIES 281824:BVW92 nidx=null parent=6ZG6P]
Meteorium nigricans
 - Meteorium nigricans (Hook.) Mitt. [SYNONYM SPECIES 278910:9SKJH nidx=null parent=6ZG4S]
 + Meteorium nigricans (Hook.) Spruce [SYNONYM SPECIES 281824:BVW93 nidx=null parent=6ZG4S]
Meteorium tetragonum
 - Meteorium tetragonum (Sw. ex Hedw.) Mitt. [SYNONYM SPECIES 278910:9SKLZ nidx=null parent=74XVH]
 + Meteorium tetragonum (Sw. ex Hedw.) Spruce [SYNONYM SPECIES 281824:BVW94 nidx=null parent=74XVH]
Meteorium tovariense
 - Meteorium tovariense (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9SKM5 nidx=null parent=5CZCF]
 + Meteorium tovariense (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVW95 nidx=null parent=5CZCF]
Meteorium turgescens
 - Meteorium turgescens (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9SKM9 nidx=null parent=4HVKD]
 + Meteorium turgescens (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVW96 nidx=null parent=4HVKD]
Metopolophium (Metopolophium)
 - Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 278910:BMHND nidx=null]
 + Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 281824:BV8TJ nidx=null]
Metopolophium (Metopolophium) fasciatum
 - Metopolophium (Metopolophium) fasciatum [ACCEPTED SPECIES 278910:42HCC nidx=null]
 + Metopolophium (Metopolophium) fasciatum [ACCEPTED SPECIES 281824:BVQT7 nidx=null]
Metopolophium (Metopolophium) montanum
 - Metopolophium (Metopolophium) montanum Hille Ris Lambers, 1966 [ACCEPTED SPECIES 278910:BT4QJ nidx=null]
 + Metopolophium (Metopolophium) montanum Hille Ris Lambers, 1966 [ACCEPTED SPECIES 281824:42HCH nidx=null]
Metrioptera pulchra
 - Metrioptera pulchra [SYNONYM SPECIES 278910:BT686 nidx=null parent=4T9L2]
 + Metrioptera pulchra (Werner, 1901) [SYNONYM SPECIES 281824:8Q25C nidx=null parent=4T9L2]
Metrioptera roeseli
 - Metrioptera roeseli [SYNONYM SPECIES 278910:8P9DS nidx=null parent=4T9L7]
 + Metrioptera roeseli (Hagenbach, 1822) [SYNONYM SPECIES 281824:BVQV6 nidx=null parent=4T9L7]
Microtegeus hauseri
 - Microtegeus hauseri Mahunka, 1988 [ACCEPTED SPECIES 278910:437TQ nidx=null]
 + Microtegeus hauseri Mahunka, 1998 [ACCEPTED SPECIES 281824:BVQX3 nidx=null]
Microtus pennsylvanicus shattucki
 - Microtus pennsylvanicus shattucki Howe, 1901 [SYNONYM SUBSPECIES 278910:BTDSZ nidx=null parent=439CS]
 + Microtus pennsylvanicus shattucki Howe, 1901 [SYNONYM SUBSPECIES 281824:BVWQN nidx=null parent=7VV89]
Millepora exaesa var. incrustans
 - Millepora exaesa var. incrustans Klunzinger, 1879 [SYNONYM VARIETY 278910:7LY7T nidx=null parent=43CZ6]
 + Millepora exaesa var. incrustans Klunzinger, 1877 [SYNONYM VARIETY 281824:BV9MB nidx=null parent=43CZ6]
Mirhipipteryx pronotumpunctata
 - Mirhipipteryx pronotumpunctata [SYNONYM SPECIES 278910:8Q276 nidx=null parent=43LYQ]
 + Mirhipipteryx pronotumpunctata Günther, 1969 [SYNONYM SPECIES 281824:BVQYC nidx=null parent=43LYQ]
Mitra (Fuscomitra) fusca
 - Mitra (Fuscomitra) fusca Pallary, 1900 [SYNONYM SPECIES 278910:BH87M nidx=null parent=3Q379]
 + Mitra (Fuscomitra) fusca (Swainson, 1824) [SYNONYM SPECIES 281824:BVF7V nidx=null parent=3Q379]
Mnium affine
 - Mnium affine Blandow ex Funck [SYNONYM SPECIES 278910:9LWSK nidx=null parent=4JGLR]
 + Mnium affine Blandow [SYNONYM SPECIES 281824:BVWBV nidx=null parent=9W6WF]
Mnium hornum var. sublaeve
 - Mnium hornum var. sublaeve Milde [SYNONYM VARIETY 278910:9TBT4 nidx=null parent=73N5V]
 + Mnium hornum var. sublaeve Milde ex Geh. [SYNONYM VARIETY 281824:BW2DS nidx=null parent=73N5V]
Mnium lacustre
 - Mnium lacustre (F. Weber & D. Mohr) Röhl. [SYNONYM SPECIES 278910:9SLLZ nidx=null parent=9STM9]
 + Mnium lacustre (F. Weber & D. Mohr) Blandow [SYNONYM SPECIES 281824:BVWBW nidx=null parent=9STM9]
Mnium seligeri
 - Mnium seligeri Jur. [SYNONYM SPECIES 278910:9MW89 nidx=null parent=4JGLZ]
 + Mnium seligeri Jur. ex Warnst. [SYNONYM SPECIES 281824:BVWBX nidx=null parent=9VTJD]
Modiola (Brachydontes)
 - Modiola (Brachydontes) Gray, 1847 [SYNONYM SUBGENUS 278910:BG8KV nidx=null parent=7NR2D]
 + Modiola (Brachydontes) [SYNONYM SUBGENUS 281824:BVRDN nidx=null parent=7NR2D]
Mongolotettix anomopoterus
 - Mongolotettix anomopoterus [SYNONYM SPECIES 278910:8Q28M nidx=null parent=443RM]
 + Mongolotettix anomopoterus Caudell, 1921 [SYNONYM SPECIES 281824:BVR8W nidx=null parent=443RM]
Mongolotettix shanxiensis
 - Mongolotettix shanxiensis [SYNONYM SPECIES 278910:8PFBN nidx=null parent=443RW]
 + Mongolotettix shanxiensis Shi, Liu & Li, 2016 [SYNONYM SPECIES 281824:BVPZC nidx=null parent=443RW]
Montia linearifolia
 - Montia linearifolia [SYNONYM SPECIES 278910:44B3B nidx=null parent=7KD43]
 + Montia linearifolia d'Urv. [SYNONYM SPECIES 281824:BVRB4 nidx=null parent=7KD43]
Musculium (Paramusculium)
 - Musculium (Paramusculium) Alimov & Starobogatov, 1986 [SYNONYM SUBGENUS 278910:BGWX2 nidx=null parent=7P9CS]
 + Musculium (Paramusculium) Alimov & Starobogatov, 1968 [SYNONYM SUBGENUS 281824:BVS3F nidx=null parent=7PH6H]
Myzocallis (Hoplocallis) picta
 - Myzocallis (Hoplocallis) picta (Ferrari, 1872) [SYNONYM SPECIES 278910:BT6T7 nidx=null parent=6MC7H]
 + Myzocallis (Hoplocallis) picta (Ferrari, 1872) [SYNONYM SPECIES 281824:BVRGD nidx=null parent=6MC7H]
Myzocallis (Lineomyzocallis) walshii
 - Myzocallis (Lineomyzocallis) walshii (Monell, 1879) [ACCEPTED SPECIES 278910:BSHV2 nidx=null]
 + Myzocallis (Lineomyzocallis) walshii (Monell, 1879) [ACCEPTED SPECIES 281824:45HNX nidx=null]
Myzocallis (Myzocallis) castanicola
 - Myzocallis (Myzocallis) castanicola Baker, 1917 [SYNONYM SPECIES 278910:BSM54 nidx=null parent=7HGV8]
 + Myzocallis (Myzocallis) castanicola Baker, 1917 [SYNONYM SPECIES 281824:45HP2 nidx=null parent=7HGV8]
Myzocallis (Myzocallis) coryli
 - Myzocallis (Myzocallis) coryli (Goeze, 1778) [SYNONYM SPECIES 278910:45HP3 nidx=null parent=9GSRH]
 + Myzocallis (Myzocallis) coryli (Goeze, 1778) [SYNONYM SPECIES 281824:BVCLC nidx=null parent=9GSRH]
Myzocallis (Myzocallis) ulmifoliae
 - Myzocallis (Myzocallis) ulmifoliae [ACCEPTED SPECIES 278910:8QZ66 nidx=null]
 + Myzocallis (Myzocallis) ulmifoliae [ACCEPTED SPECIES 281824:BVRGG nidx=null]
Myzus (Myzus) berchemiae
 - Myzus (Myzus) berchemiae [ACCEPTED SPECIES 278910:BT6LL nidx=null]
 + Myzus (Myzus) berchemiae [ACCEPTED SPECIES 281824:B8FJP nidx=null]
Myzus (Myzus) ornatus
 - Myzus (Myzus) ornatus [ACCEPTED SPECIES 278910:45J2X nidx=null]
 + Myzus (Myzus) ornatus [ACCEPTED SPECIES 281824:BVCLK nidx=null]
Neallogaster lunifera
 - Neallogaster lunifera (Seyls, 1878) [ACCEPTED SPECIES 278910:BV654 nidx=null]
 + Neallogaster lunifera (Selys, 1878) [ACCEPTED SPECIES 281824:BW5BY nidx=null]
Neanias falciger
 - Neanias falciger [SYNONYM SPECIES 278910:8Q2C4 nidx=null parent=3GCL7]
 + Neanias falciger (Sjöstedt, 1910) [SYNONYM SPECIES 281824:BVRL4 nidx=null parent=3GCL7]
Neckera duplicata
 - Neckera duplicata (Schwägr.) A. Jaeger [SYNONYM SPECIES 278910:9SM89 nidx=null parent=Q72K]
 + Neckera duplicata (Schwägr.) Spruce [SYNONYM SPECIES 281824:BVWDX nidx=null parent=Q72K]
Neckera subintegra
 - Neckera subintegra Lindb. [SYNONYM SPECIES 278910:9SMLK nidx=null parent=4CKW2]
 + Neckera subintegra Lindb. ex Hampe [SYNONYM SPECIES 281824:BVWF2 nidx=null parent=4CKW2]
Neocypridella
 - Neocypridella Vávra, 1895 [ACCEPTED GENUS 278910:85GS9 nidx=null]
 + Neocypridella Hartman & Puri, 1974 [ACCEPTED GENUS 281824:BVD49 nidx=null]
Neoparvicapsula
 - Neoparvicapsula [ACCEPTED GENUS 278910:627L nidx=null]
 + Neoparvicapsula Gayevskaya, Kovaljova & Schulman, 1982 [ACCEPTED GENUS 281824:BVD4Z nidx=null]
Nestellorella parva
 - Nestellorella parva (Lipina, 1949) [ACCEPTED SPECIES 278910:82ZR2 nidx=null]
 + Nestellorella parva (Lipina, 1949) [PROVISIONALLY_ACCEPTED SPECIES 281824:8FWVC nidx=null]
Nodosariina
 - Nodosariina Catkins, 1926 [ACCEPTED SUBORDER 278910:7ZSVK nidx=null]
 + Nodosariina Calkins, 1926 [ACCEPTED SUBORDER 281824:BVB53 nidx=null]
Ochrimnus (Ochrimnus)
 - Ochrimnus (Ochrimnus) Stal, 1874 [ACCEPTED SUBGENUS 278910:BF82K nidx=null]
 + Ochrimnus (Ochrimnus) Stal, 1874 [ACCEPTED SUBGENUS 281824:BVD75 nidx=null]
Octoblepharum pulvinatum
 - Octoblepharum pulvinatum (Dozy & Molk.) Mitt. [ACCEPTED SPECIES 278910:74FLP nidx=null]
 + Octoblepharum pulvinatum (Dozy & Molk.) Spruce [ACCEPTED SPECIES 281824:BVQJP nidx=null]
Octolepidoideae
 - Octolepidoideae Gilg [SYNONYM UNRANKED 278910:JZP nidx=null parent=628J9]
 + Octolepidoideae Engl. & Gilg [SYNONYM UNRANKED 281824:BVBCX nidx=null parent=628J9]
Ocyropsidae
 - Ocyropsidae Harbison & Madin, 1982 [ACCEPTED FAMILY 278910:7NK49 nidx=null]
 + Ocyropsidae Krumbach, 1925 [ACCEPTED FAMILY 281824:BV8F9 nidx=null]
Oecanthus aqueus
 - Oecanthus aqueus [SYNONYM SPECIES 278910:8PG25 nidx=null parent=5JYMJ]
 + Oecanthus aqueus (Fabricius, 1798) [SYNONYM SPECIES 281824:6SGTB nidx=null parent=5JYMJ]
Oecanthus rufescence
 - Oecanthus rufescence [SYNONYM SPECIES 278910:8Q2JD nidx=null parent=74GT2]
 + Oecanthus rufescence Serville, 1838 [SYNONYM SPECIES 281824:BVS2B nidx=null parent=74GT2]
Oedaleus inclytus
 - Oedaleus inclytus [SYNONYM SPECIES 278910:8PG2F nidx=null parent=48VD5]
 + Oedaleus inclytus (Walker, 1870) [SYNONYM SPECIES 281824:48VCF nidx=null parent=48VD5]
Oedaleus madacassus
 - Oedaleus madacassus [SYNONYM SPECIES 278910:8Q2JG nidx=null parent=48VD5]
 + Oedaleus madacassus Saussure, 1884 [SYNONYM SPECIES 281824:BVS2C nidx=null parent=48VD5]
Oedaleus mlocosiewiczi
 - Oedaleus mlocosiewiczi [SYNONYM SPECIES 278910:8Q2JK nidx=null parent=48VCZ]
 + Oedaleus mlocosiewiczi Bolívar, 1884 [SYNONYM SPECIES 281824:BVS2D nidx=null parent=48VCZ]
Oedaleus mlokosiewitchi
 - Oedaleus mlokosiewitchi [SYNONYM SPECIES 278910:8Q2JL nidx=null parent=48VCZ]
 + Oedaleus mlokosiewitchi Bolívar, 1884 [SYNONYM SPECIES 281824:BVRWC nidx=null parent=48VCZ]
Oleandroideae
 - Oleandroideae (Ching ex Pic.Serm.) Crabbe [SYNONYM UNRANKED 278910:B8X42 nidx=null parent=B8WX7]
 + Oleandroideae Crabbe, Jermy & Mickel [SYNONYM UNRANKED 281824:BV8QL nidx=null parent=B8WX7]
Olynthoscelis frivaldskyi
 - Olynthoscelis frivaldskyi [SYNONYM SPECIES 278910:8Q2KB nidx=null parent=4GLST]
 + Olynthoscelis frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281824:BVS3P nidx=null parent=4GLST]
Omalaxis sarsi
 - Omalaxis sarsi K. J. Bush, 18997 [SYNONYM SPECIES 278910:9PVYV nidx=null parent=8V8XK]
 + Omalaxis sarsi K. J. Bush, 1897 [SYNONYM SPECIES 281824:8V8V8 nidx=null parent=8V8XK]
Oncideres (Oncideres) gutturator
 - Oncideres (Oncideres) gutturator [AMBIGUOUS_SYNONYM SPECIES 278910:BT5QY nidx=null parent=49GDH]
 + Oncideres (Oncideres) gutturator [AMBIGUOUS_SYNONYM SPECIES 281824:BVQM8 nidx=null parent=49GDH]
Oncideres (Oncideres) putator
 - Oncideres (Oncideres) putator [AMBIGUOUS_SYNONYM SPECIES 278910:BT5R7 nidx=null parent=49GJW]
 + Oncideres (Oncideres) putator [AMBIGUOUS_SYNONYM SPECIES 281824:BVQMH nidx=null parent=49GJW]
Ophiura bracteata
 - Ophiura bracteata Johnston, 1935 [SYNONYM SPECIES 278910:6SPFR nidx=null parent=74PFS]
 + Ophiura bracteata Johnston, 1835 [SYNONYM SPECIES 281824:BVG5X nidx=null parent=74PFS]
Opistominae
 - Opistominae Luther, 1963 [ACCEPTED SUBFAMILY 278910:7NM4V nidx=null]
 + Opistominae Bresslau, 1933 [ACCEPTED SUBFAMILY 281824:BVBCZ nidx=null]
Opistomum schultzeanum
 - Opistomum schultzeanum Diesing, 1862 [SYNONYM SPECIES 278910:6T2K5 nidx=null parent=6SQK5]
 + Opistomum schultzeanum (Diesing, 1862) De Man, 1875 [SYNONYM SPECIES 281824:BVS6R nidx=null parent=6SQK5]
Oribatella (Oribatella) inflexa
 - Oribatella (Oribatella) inflexa Mahunka, 1957 [ACCEPTED SPECIES 278910:75673 nidx=null]
 + Oribatella (Oribatella) inflexa Mihelcic, 1957 [ACCEPTED SPECIES 281824:BVS6X nidx=null]
Oribatella (Oribatella) kashmiriensis
 - Oribatella (Oribatella) kashmiriensis Kardar, 1975 [PROVISIONALLY_ACCEPTED SPECIES 278910:7W67H nidx=null]
 + Oribatella (Oribatella) kashmiriensis Kardar, 1975 [ACCEPTED SPECIES 281824:6STV2 nidx=null]
Oribatula (Zygoribatula) beloniensis
 - Oribatula (Zygoribatula) beloniensis (Sanyal, Saha & Chakraborty, 2004) [ACCEPTED SPECIES 278910:7W6CR nidx=null]
 + Oribatula (Zygoribatula) beloniensis (Sanyal, Saha & Chakrabarti, 2004) [ACCEPTED SPECIES 281824:6T5FB nidx=null]
Orthostichella
 - Orthostichella (Müll. Hal.) Müll. Hal. [ACCEPTED GENUS 278910:9JLQG nidx=null]
 + Orthostichella (Müll. Hal.) Spruce [ACCEPTED GENUS 281824:BV8VM nidx=null]
Orthotrichum citrinum
 - Orthotrichum citrinum Sull. & Lesq. ex Austin [SYNONYM SPECIES 278910:9SN9Z nidx=null parent=6SXN4]
 + Orthotrichum citrinum Sull. & Lesq. [SYNONYM SPECIES 281824:BVWHV nidx=null parent=6SXN4]
Oticodium
 - Oticodium (Müll. Hal.) Kindb. [ACCEPTED GENUS 278910:9RL5C nidx=null]
 + Oticodium (Müll. Hal.) A. Jaeger [ACCEPTED GENUS 281824:BVRQT nidx=null]
Otiorhynchus speiseri
 - Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 278910:B7VBZ nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 281824:BVWJ7 nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1894 [SYNONYM SPECIES 281824:BVWJ8 nidx=null parent=373HR]
Otiorhynchus vlasuljensis
 - Otiorhynchus vlasuljensis Apfelbeck, 1895 [SYNONYM SPECIES 278910:B7VG5 nidx=null parent=6DBV9]
 + Otiorhynchus vlasuljensis Apfelbeck, 1895 [SYNONYM SPECIES 281824:BVWJB nidx=null parent=6DBV9]
 + Otiorhynchus vlasuljensis Apfelbeck, 1894 [SYNONYM SPECIES 281824:BVWJC nidx=null parent=6DBV9]
Ovornina (Ovornina)
 - Ovornina (Ovornina) Gruendel, 1966 [SYNONYM SUBGENUS 278910:BMNFF nidx=null parent=BMNFD]
 + Ovornina (Ovornina) Gruendel, 1966 [SYNONYM SUBGENUS 281824:BVFH5 nidx=null parent=BVFH4]
Oxycephalidae
 - Oxycephalidae Dana, 1852 [ACCEPTED FAMILY 278910:7NK8G nidx=null]
 + Oxycephalidae Spence Bate, 1863 [ACCEPTED FAMILY 281824:BV8LK nidx=null]
Oxyuridae
 - Oxyuridae Cobbold, 1864 [ACCEPTED FAMILY 278910:87C7X nidx=null]
 + Oxyuridae Weinland, 1858 [ACCEPTED FAMILY 281824:BV8FG nidx=null]
Oxyuroidea
 - Oxyuroidea Cobbold, 1864 [ACCEPTED SUPERFAMILY 278910:87BWV nidx=null]
 + Oxyuroidea Weinland, 1858 [ACCEPTED SUPERFAMILY 281824:BV8GV nidx=null]
Pachytylus migratoroides
 - Pachytylus migratoroides [SYNONYM SPECIES 278910:8Q2QP nidx=null parent=7JZG5]
 + Pachytylus migratoroides (Reiche & Fairmaire, 1849) [SYNONYM SPECIES 281824:BVSGD nidx=null parent=7JZG5]
Palaeocorystes isericus
 - Palaeocorystes isericus Frič & Kafka, 1887 [SYNONYM SPECIES 278910:9WXXC nidx=null parent=9X8N7]
 + Palaeocorystes isericus Fritsch in Fritsch & Kafka, 1887 [SYNONYM SPECIES 281824:BVWJS nidx=null parent=BVSVK]
Papilio iarbus
 - Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 278910:BRCSL nidx=null parent=BT88N]
 + Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 281824:BVWKN nidx=null parent=BVSDR]
Parilcirolana setosa
 - Parilcirolana setosa H. Yu & Li, 2001 [SYNONYM SPECIES 278910:7XYDF nidx=null parent=6SGS3]
 + Parilcirolana setosa Yu & Li, 2001 [SYNONYM SPECIES 281824:4DMD7 nidx=null parent=6SGS3]
Patinopecten kagamianus permirus
 - Patinopecten kagamianus permirus Masuda, 1958 [SYNONYM SUBSPECIES 278910:8RX5X nidx=null parent=8RWRP]
 + Patinopecten kagamianus permirus Yokoyama, 1926 [SYNONYM SUBSPECIES 281824:BVZWG nidx=null parent=B6DBY]
Pecten (Pecten) mexicanus
 - Pecten (Pecten) mexicanus Perilliat, 1992 [SYNONYM SPECIES 278910:B5BSD nidx=null parent=B6GWQ]
 + Pecten (Pecten) mexicanus Perrilliat, 1992 [SYNONYM SPECIES 281824:BVWMX nidx=null parent=BVWMY]
Pecten escharoides
 - Pecten escharoides Deshayes, 1858 [SYNONYM SPECIES 278910:B6HF6 nidx=null parent=8YJW4]
 + Pecten escharoides Deshayes, 1861 [SYNONYM SPECIES 281824:BVWN9 nidx=null parent=8YJW4]
Pecten kunkuma var. flabellum
 - Pecten kunkuma var. flabellum Maury, 1925 [SYNONYM VARIETY 278910:B6F6X nidx=null parent=B6FJC]
 + Pecten kunkuma var. flabellum C. W. Cooke, 1919 [SYNONYM VARIETY 281824:BW29L nidx=null parent=BHZ2B]
Pecten misolensis
 - Pecten misolensis Wanner, 1910 [SYNONYM SPECIES 278910:B6HMY nidx=null parent=B6FCV]
 + Pecten misolensis Jaworski, 1915 [SYNONYM SPECIES 281824:BVWNC nidx=null parent=BVVJ7]
Pecten optatus
 - Pecten optatus Deshayes, 1858 [SYNONYM SPECIES 278910:B6BL9 nidx=null parent=8YJW4]
 + Pecten optatus Deshayes, 1861 [SYNONYM SPECIES 281824:BVWND nidx=null parent=8YJW4]
Pellicieraceae
 - Pellicieraceae (Triana & Planch.) L.Beauvis. ex Bullock [SYNONYM UNRANKED 278910:625SV nidx=null parent=H3T]
 + Pellicieraceae Bullock [SYNONYM UNRANKED 281824:BV8FK nidx=null parent=H3T]
Pelycidion xanthias
 - Pelycidion xanthias (R. B. Watson, 1888) [ACCEPTED SPECIES 278910:76FQM nidx=null]
 + Pelycidion xanthias (R. B. Watson, 1886) [ACCEPTED SPECIES 281824:BVCRP nidx=null]
Pemphigus (Pemphigus) eastopi
 - Pemphigus (Pemphigus) eastopi [ACCEPTED SPECIES 278910:76FDY nidx=null]
 + Pemphigus (Pemphigus) eastopi [ACCEPTED SPECIES 281824:BVSTC nidx=null]
Perpolita dalliana
 - Perpolita dalliana (C. T. Simpson, 1889) [ACCEPTED SPECIES 278910:7SNNS nidx=null]
 + Perpolita dalliana (Pilsbry, 1889) [ACCEPTED SPECIES 281824:BVSXL nidx=null]
Persoonioideae
 - Persoonioideae L. A. S. Johnson & B. G. Briggs [ACCEPTED SUBFAMILY 278910:K4L nidx=null]
 + Persoonioideae Engl. [ACCEPTED SUBFAMILY 281824:BV8QN nidx=null]
Phaenocora anomalocoela
 - Phaenocora anomalocoela Graff, 1913 [ACCEPTED SPECIES 278910:76VR8 nidx=null]
 + Phaenocora anomalocoela (Haswell, 1905) Graff, 1913 [ACCEPTED SPECIES 281824:BVCRZ nidx=null]
Phaenocora cucurbitina
 - Phaenocora cucurbitina Beklemischev, 1919 [ACCEPTED SPECIES 278910:6V7QX nidx=null]
 + Phaenocora cucurbitina Beklemischev, 1918 [ACCEPTED SPECIES 281824:BVSYL nidx=null]
Phaenocora vejdovskyi
 - Phaenocora vejdovskyi (Vejdovsky, 1895) [SYNONYM SPECIES 278910:4FLVG nidx=null parent=76W2W]
 + Phaenocora vejdovskyi Graff, 1913 [SYNONYM SPECIES 281824:BVSYM nidx=null parent=76W2W]
Philonotis angulata
 - Philonotis angulata (Taylor) A. Jaeger [SYNONYM SPECIES 278910:4G9F9 nidx=null parent=4G9K3]
 + Philonotis angulata (Taylor) Spruce [SYNONYM SPECIES 281824:BVSZS nidx=null parent=4G9K3]
Philonotis tenella
 - Philonotis tenella (Brid.) A. Jaeger [AMBIGUOUS_SYNONYM SPECIES 278910:9MYHV nidx=null parent=4G9L7]
 + Philonotis tenella (Brid.) Spruce [AMBIGUOUS_SYNONYM SPECIES 281824:BVWQJ nidx=null parent=4G9L7]
Phlepsius infumatus
 - Phlepsius infumatus Crevecoeur, 1905 [SYNONYM SPECIES 278910:8JPNF nidx=null parent=3DK5G]
 + Phlepsius infumatus (Van Duzee, 1894) [SYNONYM SPECIES 281824:BVT3Q nidx=null parent=3DK5G]
Phoenocora
 - Phoenocora Cognetti de Martiis, 1916 [SYNONYM GENUS 278910:BGN3P nidx=null parent=7PR5S]
 + Phoenocora [SYNONYM GENUS 281824:BVRSL nidx=null parent=7PR5S]
Pholidoptera frivaldsky
 - Pholidoptera frivaldsky [SYNONYM SPECIES 278910:8Q342 nidx=null parent=4GLST]
 + Pholidoptera frivaldsky Herman, 1871 [SYNONYM SPECIES 281824:BVT46 nidx=null parent=4GLST]
Pholidoptera frivaldskyi
 - Pholidoptera frivaldskyi [SYNONYM SPECIES 278910:8Q33Z nidx=null parent=4GLST]
 + Pholidoptera frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281824:BVT2C nidx=null parent=4GLST]
Pholidoptera friwaldskyi
 - Pholidoptera friwaldskyi [SYNONYM SPECIES 278910:8Q343 nidx=null parent=4GLST]
 + Pholidoptera friwaldskyi Herman, 1871 [SYNONYM SPECIES 281824:BVT47 nidx=null parent=4GLST]
Pholidoptera friwaldszkyi
 - Pholidoptera friwaldszkyi [SYNONYM SPECIES 278910:8Q344 nidx=null parent=4GLST]
 + Pholidoptera friwaldszkyi (Herman, 1871) [SYNONYM SPECIES 281824:BVT48 nidx=null parent=4GLST]
Photis reinhardi
 - Photis reinhardi Lincoln, 1979 [AMBIGUOUS_SYNONYM SPECIES 278910:4GT3Y nidx=null parent=4GT3T]
 + Photis reinhardi Krøyer, 1842 [SYNONYM SPECIES 281824:BVT2L nidx=null parent=4GT3T]
Phyllogonium viscosum
 - Phyllogonium viscosum (P. Beauv.) Mitt. [ACCEPTED SPECIES 278910:4H7HQ nidx=null]
 + Phyllogonium viscosum (P. Beauv.) Spruce [ACCEPTED SPECIES 281824:BVRDB nidx=null]
Phytolaccoideae
 - Phytolaccoideae R. Br. [ACCEPTED SUBFAMILY 278910:K5P nidx=null]
 + Phytolaccoideae Arn. [ACCEPTED SUBFAMILY 281824:BVBD5 nidx=null]
Pilotrichella
 - Pilotrichella (Müll. Hal.) Besch. [ACCEPTED GENUS 278910:9JM8M nidx=null]
 + Pilotrichella (Müll. Hal.) Lorentz [ACCEPTED GENUS 281824:BV8W9 nidx=null]
Pisidium (Pseudeupera)
 - Pisidium (Pseudeupera) Germain, 1909 [SYNONYM SUBGENUS 278910:BDXZM nidx=null parent=7PCNC]
 + Pisidium (Pseudeupera) Germain, 1913 [SYNONYM SUBGENUS 281824:BV8WL nidx=null parent=7P3P6]
Pisidium gassiesianum
 - Pisidium gassiesianum Gassies, 1849 [SYNONYM SPECIES 278910:BTYGQ nidx=null parent=8RQMM]
 + Pisidium gassiesianum Dupuy, 1849 [SYNONYM SPECIES 281824:BW4SH nidx=null parent=8RQMM]
Plagiothecium elegans
 - Plagiothecium elegans (Brid.) Schimp. [SYNONYM SPECIES 278910:9MZ8D nidx=null parent=4PCYJ]
 + Plagiothecium elegans (Brid.) Austin [SYNONYM SPECIES 281824:BVWS4 nidx=null parent=4PCYJ]
Plagiothecium novogranatense
 - Plagiothecium novogranatense (Hampe) Mitt. [ACCEPTED SPECIES 278910:4JHJM nidx=null]
 + Plagiothecium novogranatense (Hampe) Spruce [ACCEPTED SPECIES 281824:BVRLJ nidx=null]
Plagiothecium pulchellum var. nitidulum
 - Plagiothecium pulchellum var. nitidulum (Wahlenb.) Renauld & Cardot [SYNONYM VARIETY 278910:9T6D8 nidx=null parent=9LN29]
 + Plagiothecium pulchellum var. nitidulum (Wahlenb.) Austin [SYNONYM VARIETY 281824:BVZZQ nidx=null parent=9LN29]
Plagiothecium tenerum
 - Plagiothecium tenerum (Sw.) Kindb. [SYNONYM SPECIES 278910:9SR2K nidx=null parent=3QBM8]
 + Plagiothecium tenerum (Sw.) Spruce [SYNONYM SPECIES 281824:BVWS5 nidx=null parent=3QBM8]
Plasmobates schubarti
 - Plasmobates schubarti Pérez-Íñigo & Baggio, 1998 [ACCEPTED SPECIES 278910:4JM8Q nidx=null]
 + Plasmobates schubarti Pérez-Íñigo & Baggio, 1988 [SYNONYM SPECIES 281824:BVTDH nidx=null parent=BW3TG]
Platycaryeae
 - Platycaryeae Oerst. [SYNONYM UNRANKED 278910:L5Q nidx=null parent=K67]
 + Platycaryeae Nakai [SYNONYM UNRANKED 281824:BVBFS nidx=null parent=K67]
Platycleis roeseli
 - Platycleis roeseli [SYNONYM SPECIES 278910:8PHQ8 nidx=null parent=4T9L7]
 + Platycleis roeseli (Hagenbach, 1822) [SYNONYM SPECIES 281824:BVTFD nidx=null parent=4T9L7]
Pleuroprocta
 - Pleuroprocta [SYNONYM OTHER 278910:BGNK5 nidx=null parent=7NGMQ]
 + Pleuroprocta [SYNONYM SECTION_ZOOLOGY 281824:BSBZW nidx=null parent=7NGMQ]
Pleustomesus
 - Pleustomesus Guryanova, 1972 [ACCEPTED GENUS 278910:7PT56 nidx=null]
 + Pleustomesus Gurjanova, 1972 [ACCEPTED GENUS 281824:BVDJ2 nidx=null]
Plicatula plicata var. concava
 - Plicatula plicata var. concava Jousseaume, 1922 [SYNONYM VARIETY 278910:7MG7V nidx=null parent=4KFVY]
 + Plicatula plicata var. concava Lamy, 1922 [SYNONYM VARIETY 281824:BW27W nidx=null parent=4KFVY]
Plicatula plicata var. foliacea
 - Plicatula plicata var. foliacea Jousseaume, 1922 [SYNONYM VARIETY 278910:5QTQF nidx=null parent=4KFWV]
 + Plicatula plicata var. foliacea Lamy, 1922 [SYNONYM VARIETY 281824:BW27X nidx=null parent=4KFWV]
Pneumonoeces capyristes
 - Pneumonoeces capyristes Kelin, 1905 [SYNONYM SPECIES 278910:B283X nidx=null parent=B3D3X]
 + Pneumonoeces capyristes Klein, 1905 [SYNONYM SPECIES 281824:BVWT9 nidx=null parent=B3D3X]
Pneumonoeces sibiricus
 - Pneumonoeces sibiricus Isaichikov, 1927 [SYNONYM SPECIES 278910:B2QYY nidx=null parent=9Z89R]
 + Pneumonoeces sibiricus Issaitschikov, 1927 [SYNONYM SPECIES 281824:BVWTB nidx=null parent=BVV7G]
Podotremata
 - Podotremata Guinot, 1977 [SYNONYM OTHER 278910:8PS7S nidx=null parent=B8WMW]
 + Podotremata Guinot, 1977 [SYNONYM SECTION_ZOOLOGY 281824:BVBTC nidx=null parent=B8WMW]
Poecilimon geoktschaicus
 - Poecilimon geoktschaicus [SYNONYM SPECIES 278910:8PHVY nidx=null parent=4KSJH]
 + Poecilimon geoktschaicus Stshelkanovtzev, 1910 [SYNONYM SPECIES 281824:BVRPD nidx=null parent=4KSJH]
Poecilimon geoktshaicus
 - Poecilimon geoktshaicus [SYNONYM SPECIES 278910:8Q3FT nidx=null parent=4KSJH]
 + Poecilimon geoktshaicus Stshelkanovtzev, 1910 [SYNONYM SPECIES 281824:BVTT8 nidx=null parent=4KSJH]
Poecilimon zawadskii
 - Poecilimon zawadskii [SYNONYM SPECIES 278910:8PHWG nidx=null parent=4KSJH]
 + Poecilimon zawadskii Stshelkanovtzev, 1910 [SYNONYM SPECIES 281824:BVTSZ nidx=null parent=4KSJH]
Poecilocera sanguinolenta
 - Poecilocera sanguinolenta [SYNONYM SPECIES 278910:8Q3GG nidx=null parent=7KW97]
 + Poecilocera sanguinolenta (De Geer, 1773) [SYNONYM SPECIES 281824:BVTT7 nidx=null parent=7KW97]
Poecilocerus roseipennis
 - Poecilocerus roseipennis [SYNONYM SPECIES 278910:8PHWN nidx=null parent=7KVX7]
 + Poecilocerus roseipennis Serville, 1831 [SYNONYM SPECIES 281824:4KT9T nidx=null parent=7KVX7]
Pogonatum oligodus
 - Pogonatum oligodus (Kunze ex Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9SRFF nidx=null parent=9VLC5]
 + Pogonatum oligodus (Kunze ex Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVRPJ nidx=null parent=9VLC5]
Polyamia (Polyamia)
 - Polyamia (Polyamia) DeLong, 1926 [ACCEPTED SUBGENUS 278910:BMLTD nidx=null]
 + Polyamia (Polyamia) DeLong, 1926 [ACCEPTED SUBGENUS 281824:BVDK3 nidx=null]
Polynoe squamata
 - Polynoe squamata Savigny in Lamarck, 1818 [AMBIGUOUS_SYNONYM SPECIES 278910:6VTTC nidx=null parent=3TCDN]
 + Polynoe squamata (Linnaeus, 1758) [SYNONYM SPECIES 281824:BVTZM nidx=null parent=3TCDN]
Polytrichum controversum
 - Polytrichum controversum (F. Weber & D. Mohr) Brid. [SYNONYM SPECIES 278910:9SRT3 nidx=null parent=JL48]
 + Polytrichum controversum (F. Weber & D. Mohr) Brid. ex Schultz [SYNONYM SPECIES 281824:BVWV4 nidx=null parent=5VWDS]
Porcellio gertschi
 - Porcellio gertschi Vandel, 1942 [SYNONYM SPECIES 278910:4LW7Y nidx=null parent=65J35]
 + Porcellio gertschi Van Name, 1942 [SYNONYM SPECIES 281824:BVV5C nidx=null parent=65J35]
Poronoticae
 - Poronoticae Grandjean, 1954 [ACCEPTED OTHER 278910:8P4B3 nidx=null]
 + Poronoticae Grandjean, 1954 [ACCEPTED SECTION_ZOOLOGY 281824:BVFJ4 nidx=null]
Porothamnium valdiviae
 - Porothamnium valdiviae (Müll. Hal.) M. Fleisch. [SYNONYM SPECIES 278910:4LYTD nidx=null parent=9M87M]
 + Porothamnium valdiviae (Müll. Hal.) M. Fleisch. ex Thér. [SYNONYM SPECIES 281824:BVV45 nidx=null parent=9M87M]
Porotrichum alopecurum
 - Porotrichum alopecurum (Hedw.) Dixon [SYNONYM SPECIES 278910:9SS8D nidx=null parent=5638V]
 + Porotrichum alopecurum (Hedw.) Mitt. ex Lindb. [SYNONYM SPECIES 281824:BVWV8 nidx=null parent=5638V]
Porotrichum expansum
 - Porotrichum expansum (Taylor) Mitt. [ACCEPTED SPECIES 278910:4LYV2 nidx=null]
 + Porotrichum expansum (Taylor) Spruce [ACCEPTED SPECIES 281824:BVV48 nidx=null]
Porotrichum longirostre
 - Porotrichum longirostre (Hook.) Mitt. [ACCEPTED SPECIES 278910:6W7WS nidx=null]
 + Porotrichum longirostre (Hook.) Spruce [ACCEPTED SPECIES 281824:BVBCC nidx=null]
Porotrichum penniforme
 - Porotrichum penniforme Müll. Hal. [AMBIGUOUS_SYNONYM SPECIES 278910:9VRWT nidx=null parent=4LYVC]
 + Porotrichum penniforme Müll. Hal. ex Renauld [AMBIGUOUS_SYNONYM SPECIES 281824:BVWVG nidx=null parent=4LYVC]
Primuloideae
 - Primuloideae Kostel. [ACCEPTED SUBFAMILY 278910:K79 nidx=null]
 + Primuloideae Burnett [ACCEPTED SUBFAMILY 281824:BVBD6 nidx=null]
Prionus (Neopolyarthron) imbricornis
 - Prionus (Neopolyarthron) imbricornis [AMBIGUOUS_SYNONYM SPECIES 278910:BT7DQ nidx=null parent=BRRNQ]
 + Prionus (Neopolyarthron) imbricornis [AMBIGUOUS_SYNONYM SPECIES 281824:BVRVV nidx=null parent=BRRNQ]
Promecops fallax
 - Promecops fallax Schoenherr, 1840 [SYNONYM SPECIES 278910:BF72Y nidx=null parent=4MSK8]
 + Promecops fallax Fåhraeus, 1840 [SYNONYM SPECIES 281824:BVBGW nidx=null parent=4MSK8]
Proteocephalus sireni
 - Proteocephalus sireni Brooks & Buckner, 1976 [ACCEPTED SPECIES 278910:8PC79 nidx=null]
 + Proteocephalus sireni (Brooks & Buckner, 1976) Brooks, 1978 [ACCEPTED SPECIES 281824:BVV97 nidx=null]
Pseudoammodiscoidea
 - Pseudoammodiscoidea Vdovenko et al., 1993 [ACCEPTED SUPERFAMILY 278910:7ZSXB nidx=null]
 + Pseudoammodiscoidea Conil & Lys in Conil & Pirlet, 1970 nom. transl. Vdovenko et al., 1993 [ACCEPTED SUPERFAMILY 281824:BVB5Q nidx=null]
Psorodonotus hastatus
 - Psorodonotus hastatus [SYNONYM SPECIES 278910:8Q3LL nidx=null parent=5GTPS]
 + Psorodonotus hastatus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 281824:BVVJK nidx=null parent=5GTPS]
Pteridoideae
 - Pteridoideae C. Chr. ex Crabbe, Jermy & Mickel [ACCEPTED SUBFAMILY 278910:B8X4F nidx=null]
 + Pteridoideae Link [ACCEPTED SUBFAMILY 281824:BV8QP nidx=null]
Ptychostomum pseudotriquetrum
 - Ptychostomum pseudotriquetrum (Hedw.) J.R. Spence & H.P. Ramsay ex Holyoak & N. Pedersen [ACCEPTED SPECIES 278910:9MC6K nidx=null]
 + Ptychostomum pseudotriquetrum (Hedw.) J.R. Spence & H.P. Ramsay [ACCEPTED SPECIES 281824:BVBGH nidx=null]
Ptychotrema (Parennea) nyangweense tchibindanum
 - Ptychotrema (Parennea) nyangweense tchibindanum Pilsbry & Cockerell, 1933 [SYNONYM SUBSPECIES 278910:8M4MH nidx=null parent=8M44D]
 + Ptychotrema (Parennea) nyangweense tchibindanum [sic] [SYNONYM SUBSPECIES 281824:BVZXJ nidx=null parent=4QB55]
Ptychotrema nyangweense tchibindanum
 - Ptychotrema nyangweense tchibindanum Pilsbry & Cockerell, 1933 [ACCEPTED SUBSPECIES 278910:8M44D nidx=null]
 + Ptychotrema nyangweense tchibindanum [sic] [SYNONYM SUBSPECIES 281824:BVZXH nidx=null parent=4QB55]
Pulsatilla slavica subsp. subslavica
 - Pulsatilla slavica subsp. subslavica (Futák ex Goliášová) Dostál [SYNONYM SUBSPECIES 278910:5KSKJ nidx=null parent=5KSJP]
 + Pulsatilla slavica subsp. subslavica [SYNONYM SUBSPECIES 281824:BW23V nidx=null parent=5KSJP]
Pulsatilla subslavica
 - Pulsatilla subslavica Futák ex Goliášová [SYNONYM SPECIES 278910:4QGVJ nidx=null parent=5KSJP]
 + Pulsatilla subslavica [SYNONYM SPECIES 281824:BVVVZ nidx=null parent=5KSJP]
Pustularia (Pustularia) bistrinotata mediocris
 - Pustularia (Pustularia) bistrinotata mediocris F. A. Schilder & M. Schilder, 1938 [SYNONYM SUBSPECIES 278910:BSS83 nidx=null parent=7HYBR]
 + Pustularia (Pustularia) bistrinotata mediocris F. A. Schilder & M. Schilder, 1938 [SYNONYM SUBSPECIES 281824:9HGLL nidx=null parent=B77K2]
Pycnonoticae
 - Pycnonoticae Grandjean, 1954 [ACCEPTED OTHER 278910:8P4B4 nidx=null]
 + Pycnonoticae Grandjean, 1954 [ACCEPTED SECTION_ZOOLOGY 281824:BVFJ5 nidx=null]
Racomitrium crispipilum
 - Racomitrium crispipilum (Taylor) A. Jaeger [SYNONYM SPECIES 278910:4R8NL nidx=null parent=9L5VB]
 + Racomitrium crispipilum (Taylor) Spruce [SYNONYM SPECIES 281824:BVSD3 nidx=null parent=9L5VB]
Raninoida
 - Raninoida Ahyong, Lai, Sharkey, Colgan & Ng, 2007 [ACCEPTED OTHER 278910:BDJ3T nidx=null]
 + Raninoida Ahyong, Lai, Sharkey, Colgan & Ng, 2007 [ACCEPTED SECTION_ZOOLOGY 281824:BVS48 nidx=null]
Ranunculus ficaria subsp. ficariiformis
 - Ranunculus ficaria subsp. ficariiformis [SYNONYM SUBSPECIES 278910:BQZWW nidx=null parent=6HWFM]
 + Ranunculus ficaria subsp. ficariiformis F. W. Schultz ex Rouy & Foucaud [SYNONYM SUBSPECIES 281824:BVFFC nidx=null parent=6HWFM]
Rhagium (Rhagium) mordax
 - Rhagium (Rhagium) mordax [SYNONYM SPECIES 278910:BRVT2 nidx=null parent=4RYQ9]
 + Rhagium (Rhagium) mordax [SYNONYM SPECIES 281824:BVSG4 nidx=null parent=4RYQ9]
Rhaphidorrhynchum
 - Rhaphidorrhynchum (Schimp. ex Mitt.) Mitt. [SYNONYM GENUS 278910:9W3WD nidx=null parent=9JNF7]
 + Rhaphidorrhynchum Spruce [SYNONYM GENUS 281824:BVRV5 nidx=null parent=9JNF7]
Rhaphidorrhynchum contiguum
 - Rhaphidorrhynchum contiguum (Mitt.) Mitt. [SYNONYM SPECIES 278910:9VZ3X nidx=null parent=BKBHN]
 + Rhaphidorrhynchum contiguum (Mitt.) Besch. [SYNONYM SPECIES 281824:BVX2S nidx=null parent=BKBHN]
Rhaponticum australe
 - Rhaponticum australe (Gaudich.) Soskov [SYNONYM SPECIES 278910:4S5CM nidx=null parent=727FZ]
 + Rhaponticum australe (Gaudich.) Soskov [ACCEPTED SPECIES 281824:4S5CL nidx=null]
Rhopalosiphoninus (Myzosiphon) tulipaellus
 - Rhopalosiphoninus (Myzosiphon) tulipaellus [SYNONYM SPECIES 278910:BT8DG nidx=null parent=7J2T2]
 + Rhopalosiphoninus (Myzosiphon) tulipaellus [SYNONYM SPECIES 281824:BVSJ8 nidx=null parent=7J2T2]
Rhynchostegium aquaticum
 - Rhynchostegium aquaticum A. Jaeger [ACCEPTED SPECIES 278910:9MFTQ nidx=null]
 + Rhynchostegium aquaticum Spruce [ACCEPTED SPECIES 281824:BVSJP nidx=null]
Rhynchostegium microcarpum
 - Rhynchostegium microcarpum Rau & Herv. [SYNONYM SPECIES 278910:9VL54 nidx=null parent=4WFDQ]
 + Rhynchostegium microcarpum (R. Hedw. ex Brid.) Austin [SYNONYM SPECIES 281824:BVX35 nidx=null parent=4WFDQ]
Rhynchostegium microcarpum var. anisocarpon
 - Rhynchostegium microcarpum var. anisocarpon (Sull.) Rau & Herv. [SYNONYM VARIETY 278910:9VZW8 nidx=null parent=4WFDQ]
 + Rhynchostegium microcarpum var. anisocarpon (Sull.) Austin [SYNONYM VARIETY 281824:BW2FD nidx=null parent=4WFDQ]
Rhynchostegium recurvans
 - Rhynchostegium recurvans (Michx.) Besch. [SYNONYM SPECIES 278910:9SW9Z nidx=null parent=68R86]
 + Rhynchostegium recurvans (Michx.) Austin [SYNONYM SPECIES 281824:BVX36 nidx=null parent=68R86]
Rhynchostegium scariosum
 - Rhynchostegium scariosum (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:9MFVB nidx=null]
 + Rhynchostegium scariosum (Taylor) Spruce [ACCEPTED SPECIES 281824:BVSJQ nidx=null]
Rhynchostegium serrulatum
 - Rhynchostegium serrulatum (Hedw.) A. Jaeger [ACCEPTED SPECIES 278910:9MFVD nidx=null]
 + Rhynchostegium serrulatum (Hedw.) Austin [ACCEPTED SPECIES 281824:BVSJR nidx=null]
Rhynchostegium ulicon
 - Rhynchostegium ulicon (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:4STS7 nidx=null]
 + Rhynchostegium ulicon (Taylor) Spruce [ACCEPTED SPECIES 281824:BVW8T nidx=null]
Rhytidium
 - Rhytidium (Sull.) Kindb. [ACCEPTED GENUS 278910:9JN6Z nidx=null]
 + Rhytidium (Sull.) Austin ex C.F. Parker [ACCEPTED GENUS 281824:BV8X5 nidx=null]
Rhytidium rugosum
 - Rhytidium rugosum (Hedw.) Kindb. [ACCEPTED SPECIES 278910:4SWJY nidx=null]
 + Rhytidium rugosum (Hedw.) Austin ex C.F. Parker [ACCEPTED SPECIES 281824:BVBHC nidx=null]
Rhytiphora (Saperdopsis) marmorata
 - Rhytiphora (Saperdopsis) marmorata (Breuning, 1938) [SYNONYM SPECIES 278910:BSMHW nidx=null parent=4SX72]
 + Rhytiphora (Saperdopsis) marmorata (Breuning, 1938) [SYNONYM SPECIES 281824:BRKPN nidx=null parent=4SX72]
Riccia ciliaris
 - Riccia ciliaris Spreng. [SYNONYM SPECIES 278910:9VPYZ nidx=null parent=4SZ9Y]
 + Riccia ciliaris Roth [SYNONYM SPECIES 281824:BVX3D nidx=null parent=4SZ9Y]
Riccia sullivantii
 - Riccia sullivantii Austin [SYNONYM SPECIES 278910:9SWGQ nidx=null parent=5KXMF]
 + Riccia sullivantii Austin ex Peck [SYNONYM SPECIES 281824:BVSKJ nidx=null parent=5KXMF]
Rinacapritermes
 - Rinacapritermes Amina & Rajmohana, 2022 [ACCEPTED GENUS 278910:9WT26 nidx=null]
 + Rinacapritermes Poovoli & Keloth, 2022 [ACCEPTED GENUS 281824:BVG2Z nidx=null]
Rinacapritermes abundans
 - Rinacapritermes abundans Amina & Rajmohana, 2022 [ACCEPTED SPECIES 278910:9WW5K nidx=null]
 + Rinacapritermes abundans Poovoli & Keloth, 2022 [ACCEPTED SPECIES 281824:BVG4P nidx=null]
Rinacapritermes silvius
 - Rinacapritermes silvius Amina & Rajmohana, 2022 [ACCEPTED SPECIES 278910:9WW5L nidx=null]
 + Rinacapritermes silvius Poovoli & Keloth, 2022 [ACCEPTED SPECIES 281824:BVG4Q nidx=null]
Rinoreeae
 - Rinoreeae Reiche & Taub. [SYNONYM UNRANKED 278910:7NM9G nidx=null parent=KHG]
 + Rinoreeae Reiche & Taubert [SYNONYM UNRANKED 281824:BVBFT nidx=null parent=KHG]
Rissoella glaber
 - Rissoella glaber Gray, 1847 [SYNONYM SPECIES 278910:4T5ZL nidx=null parent=4T5Z5]
 + Rissoella glaber (Brown, 1827) [SYNONYM SPECIES 281824:BVWD5 nidx=null parent=4T5Z5]
Rissoella glabra
 - Rissoella glabra Gray, 1847 [SYNONYM SPECIES 278910:BHHCR nidx=null parent=4T5Z5]
 + Rissoella glabra (T. Brown, 1827) [SYNONYM SPECIES 281824:BVWD4 nidx=null parent=4T5Z5]
Romanovskajaella gissarensis
 - Romanovskajaella gissarensis (Burkova-Bogoslovskaya, 1963) [ACCEPTED SPECIES 278910:7T2S9 nidx=null]
 + Romanovskajaella gissarensis (Belyakova, 1970) [ACCEPTED SPECIES 281824:BVWDK nidx=null]
Rosoideae
 - Rosoideae Martinov [ACCEPTED SUBFAMILY 278910:B7X9B nidx=null]
 + Rosoideae Arn. [ACCEPTED SUBFAMILY 281824:628NC nidx=null]
Rudolphisporis mecsekensis
 - Rudolphisporis mecsekensis E. Nagy [ACCEPTED SPECIES 278910:9WFYD nidx=null]
 + Rudolphisporis mecsekensis (E. Nagy) P. Geissler & Bischl. [ACCEPTED SPECIES 281824:BVX3M nidx=null]
Sagina crassifolia
 - Sagina crassifolia [SYNONYM SPECIES 278910:4TYG2 nidx=null parent=X5XN]
 + Sagina crassifolia d'Urv. [SYNONYM SPECIES 281824:BVDSF nidx=null parent=X5XN]
Sagina subulata
 - Sagina subulata [AMBIGUOUS_SYNONYM SPECIES 278910:4TYJM nidx=null parent=X5XS]
 + Sagina subulata d'Urv. [SYNONYM SPECIES 281824:BVDSG nidx=null parent=X5XS]
Salomona arjane
 - Salomona arjane [SYNONYM SPECIES 278910:BT8MJ nidx=null parent=6XF59]
 + Salomona arjane Willemse, 1959 [SYNONYM SPECIES 281824:BVSPV nidx=null parent=6XF59]
Salviniaceae
 - Salviniaceae Rchb. [ACCEPTED FAMILY 278910:B8VC3 nidx=null]
 + Salviniaceae Martinov [ACCEPTED FAMILY 281824:BV8H5 nidx=null]
Saxosporis hidasensis
 - Saxosporis hidasensis E. Nagy [ACCEPTED SPECIES 278910:9VTJL nidx=null]
 + Saxosporis hidasensis (E. Nagy) P. Geissler & Bischl. [ACCEPTED SPECIES 281824:BVX3S nidx=null]
Scaphytopius (Cloanthanus) bifidellus
 - Scaphytopius (Cloanthanus) bifidellus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 278910:8RDWJ nidx=null parent=9KSK6]
 + Scaphytopius (Cloanthanus) bifidellus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 281824:BVWJX nidx=null parent=9KSK6]
Scaphytopius (Cloanthanus) carasensis
 - Scaphytopius (Cloanthanus) carasensis Linnavuori & Heller, 1961 [SYNONYM SPECIES 278910:8RDWR nidx=null parent=9KSKL]
 + Scaphytopius (Cloanthanus) carasensis Linnavuori & Heller, 1961 [SYNONYM SPECIES 281824:BVWJZ nidx=null parent=9KSKL]
Scaphytopius (Cloanthanus) furcifer
 - Scaphytopius (Cloanthanus) furcifer Linnavuori, 1959 [SYNONYM SPECIES 278910:8RDXG nidx=null parent=9KSLZ]
 + Scaphytopius (Cloanthanus) furcifer Linnavuori, 1959 [SYNONYM SPECIES 281824:BVWK4 nidx=null parent=9KSLZ]
Scaphytopius (Cloanthanus) fuscicephalus
 - Scaphytopius (Cloanthanus) fuscicephalus Hepner, 1946 [SYNONYM SPECIES 278910:6Y6VZ nidx=null parent=9KSM2]
 + Scaphytopius (Cloanthanus) fuscicephalus Hepner, 1946 [SYNONYM SPECIES 281824:8RDXH nidx=null parent=9KSM2]
Scaphytopius (Cloanthanus) jandacephalus
 - Scaphytopius (Cloanthanus) jandacephalus Caldwell, 1952 [SYNONYM SPECIES 278910:8RDXX nidx=null parent=9KSMN]
 + Scaphytopius (Cloanthanus) jandacephalus Caldwell, 1952 [SYNONYM SPECIES 281824:BVWK8 nidx=null parent=9KSMN]
Scaphytopius (Cloanthanus) pallescens
 - Scaphytopius (Cloanthanus) pallescens Linnavuori & DeLong, 1979 [SYNONYM SPECIES 278910:6Y76C nidx=null parent=9KSP4]
 + Scaphytopius (Cloanthanus) pallescens Linnavuori & DeLong, 1979 [SYNONYM SPECIES 281824:8RDYN nidx=null parent=9KSP4]
Scaphytopius (Cloanthanus) pallidiscutus
 - Scaphytopius (Cloanthanus) pallidiscutus Hepner, 1946 [SYNONYM SPECIES 278910:8RDYQ nidx=null parent=9KSP5]
 + Scaphytopius (Cloanthanus) pallidiscutus Hepner, 1946 [SYNONYM SPECIES 281824:BVSRV nidx=null parent=9KSP5]
Scaphytopius (Cloanthanus) virescens
 - Scaphytopius (Cloanthanus) virescens Zanol, 2000 [SYNONYM SPECIES 278910:8RDZQ nidx=null parent=9KSQH]
 + Scaphytopius (Cloanthanus) virescens Zanol, 2000 [SYNONYM SPECIES 281824:BVWKH nidx=null parent=9KSQH]
Scaphytopius (Convelinus) albifrons
 - Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 278910:BTDHL nidx=null parent=9KSJB]
 + Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 281824:BVWJV nidx=null parent=9KSJB]
Scaphytopius (Convelinus) appendiculatus
 - Scaphytopius (Convelinus) appendiculatus Zanol, 2000 [SYNONYM SPECIES 278910:6Y76T nidx=null parent=9KSJY]
 + Scaphytopius (Convelinus) appendiculatus Zanol, 2000 [SYNONYM SPECIES 281824:8RDZX nidx=null parent=9KSJY]
Scaphytopius (Convelinus) fuscifrons minutus
 - Scaphytopius (Convelinus) fuscifrons minutus Hepner, 1946 [SYNONYM SUBSPECIES 278910:BQFG9 nidx=null parent=9LK9H]
 + Scaphytopius (Convelinus) fuscifrons minutus Hepner, 1946 [SYNONYM SUBSPECIES 281824:BVZC5 nidx=null parent=9LK9H]
Scaphytopius (Scaphytopius) carenatus
 - Scaphytopius (Scaphytopius) carenatus Zanol, 2000 [SYNONYM SPECIES 278910:8RF2Z nidx=null parent=9KSKM]
 + Scaphytopius (Scaphytopius) carenatus Zanol, 2000 [SYNONYM SPECIES 281824:BVWK2 nidx=null parent=9KSKM]
Schisma longispinum
 - Schisma longispinum (J.B. Jack & Steph.) Steph. [SYNONYM SPECIES 278910:9SWS6 nidx=null parent=3KXRX]
 + Schisma longispinum (J.B. Jack & Steph.) Levier [SYNONYM SPECIES 281824:BVX3Y nidx=null parent=3KXRX]
Schizaphis (Schizaphis) mali
 - Schizaphis (Schizaphis) mali [ACCEPTED SPECIES 278910:79VCB nidx=null]
 + Schizaphis (Schizaphis) mali [ACCEPTED SPECIES 281824:BVWL4 nidx=null]
Scopelophila sikkimensis
 - Scopelophila sikkimensis Müll. Hal. [SYNONYM SPECIES 278910:9KT65 nidx=null parent=4VV79]
 + Scopelophila sikkimensis Müll. Hal. ex Renauld & Cardot [SYNONYM SPECIES 281824:BVWPC nidx=null parent=4VV79]
Scudderia williansi
 - Scudderia williansi [SYNONYM SPECIES 278910:8Q3VT nidx=null parent=5L4FP]
 + Scudderia williansi Piza, 1974 [SYNONYM SPECIES 281824:BVWPZ nidx=null parent=5L4FP]
Sellnickia caudata
 - Sellnickia caudata (Michael, 1898) [ACCEPTED SPECIES 278910:6YF46 nidx=null]
 + Sellnickia caudata (Michael, 1908) [ACCEPTED SPECIES 281824:BVCYD nidx=null]
Sematophyllum pungens
 - Sematophyllum pungens (Hedw.) Mitt. [SYNONYM SPECIES 278910:9SXL3 nidx=null parent=9P9L]
 + Sematophyllum pungens (Hedw.) Spruce [SYNONYM SPECIES 281824:BVX8L nidx=null parent=9P9L]
Senecionaceae
 - Senecionaceae Spenn. [SYNONYM UNRANKED 278910:G7Z nidx=null parent=622TP]
 + Senecionaceae Bercht. & J.Presl [SYNONYM UNRANKED 281824:BV8N7 nidx=null parent=622TP]
Sepiida
 - Sepiida Zittel, 1895 [ACCEPTED ORDER 278910:B6L8M nidx=null]
 + Sepiida Gray, 1849 [ACCEPTED ORDER 281824:BV845 nidx=null]
Septabrunsiinoidea
 - Septabrunsiinoidea Colpaert & Vachard in Colpaert et al., 2017 [ACCEPTED SUPERFAMILY 278910:7ZSXK nidx=null]
 + Septabrunsiinoidea Conil & Lys, 1977 nom. transl. Colpaert & Vachard in Colpaert et al., 2017 [ACCEPTED SUPERFAMILY 281824:BVB5S nidx=null]
Sertularella diaphana var. orthogona
 - Sertularella diaphana var. orthogona Billard, 1925 [SYNONYM VARIETY 278910:5RGWK nidx=null parent=4WY9Y]
 + Sertularella diaphana var. orthogona Billard, 1921 [SYNONYM VARIETY 281824:BV9MC nidx=null parent=4WY9Y]
Sesuvioideae
 - Sesuvioideae [ACCEPTED SUBFAMILY 278910:KBT nidx=null]
 + Sesuvioideae Lindl. [ACCEPTED SUBFAMILY 281824:BV8QR nidx=null]
Silene otites subsp. densiflora
 - Silene otites subsp. densiflora [SYNONYM SUBSPECIES 278910:5L6WT nidx=null parent=7WXQL]
 + Silene otites subsp. densiflora (d'Urv.) Graebn. & Graebn. fil. [SYNONYM SUBSPECIES 281824:BW24K nidx=null parent=7WXQL]
Sinuitopsida
 - Sinuitopsida [ACCEPTED ORDER 278910:7NVZ3 nidx=null]
 + Sinuitopsida Starobogatov, 1970 [ACCEPTED ORDER 281824:BVB4Y nidx=null]
Siphonolejeunea nudipes
 - Siphonolejeunea nudipes (Hook. f. & Taylor) R.M. Schust. [ACCEPTED SPECIES 278910:9MKV5 nidx=null]
 + Siphonolejeunea nudipes (Hook. f. & Taylor) Herzog [ACCEPTED SPECIES 281824:BVBJP nidx=null]
Solenoppia (Campbelloppia) pernettyae
 - Solenoppia (Campbelloppia) pernettyae Balogh & P. Balogh, 1988 [ACCEPTED SPECIES 278910:7WW5L nidx=null]
 + Solenoppia (Campbelloppia) pernettyae P. Balogh, 1988 [ACCEPTED SPECIES 281824:4Y6BV nidx=null]
Sonneratioideae
 - Sonneratioideae (Engl. & Gilg) Graham, Thorne & Reveal [SYNONYM UNRANKED 278910:7NM2Z nidx=null parent=628KQ]
 + Sonneratioideae S.A.Graham [SYNONYM UNRANKED 281824:BVBD8 nidx=null parent=628KQ]
Sphagnum acutifolium var. quinquefarium
 - Sphagnum acutifolium var. quinquefarium Lindb. [SYNONYM VARIETY 278910:9T6L2 nidx=null parent=4YTC4]
 + Sphagnum acutifolium var. quinquefarium Lindb. ex Braithw. [SYNONYM VARIETY 281824:BW24P nidx=null parent=4YTC4]
Sphagnum cuspidatum subsp. fallax
 - Sphagnum cuspidatum subsp. fallax (H. Klinggr.) J.J. Amann [SYNONYM SUBSPECIES 278910:9TF6Y nidx=null parent=4YT84]
 + Sphagnum cuspidatum subsp. fallax (H. Klinggr.) Bott. [SYNONYM SUBSPECIES 281824:BW24Q nidx=null parent=4YT84]
Sphagnum cuspidatum subsp. riparium
 - Sphagnum cuspidatum subsp. riparium (Ångstr.) Lindb. [SYNONYM SUBSPECIES 278910:9T6LN nidx=null parent=4YTCB]
 + Sphagnum cuspidatum subsp. riparium (Ångstr.) Bott. [SYNONYM SUBSPECIES 281824:BW24S nidx=null parent=4YTCB]
Sphagnum cuspidatum var. laxifolium
 - Sphagnum cuspidatum var. laxifolium (Müll. Hal.) H. Klinggr. [SYNONYM VARIETY 278910:9V9BW nidx=null parent=4YT7G]
 + Sphagnum cuspidatum var. laxifolium (Müll. Hal.) Austin [SYNONYM VARIETY 281824:BW24R nidx=null parent=4YT7G]
Sphagnum cuspidatum var. torreyanum
 - Sphagnum cuspidatum var. torreyanum (Sull.) Lesq. & James [SYNONYM VARIETY 278910:9TKK4 nidx=null parent=6YY95]
 + Sphagnum cuspidatum var. torreyanum (Sull.) Austin [SYNONYM VARIETY 281824:BW2FX nidx=null parent=6YY95]
Sphagnum insulosum
 - Sphagnum insulosum Ångstr. [SYNONYM SPECIES 278910:9SXZV nidx=null parent=4YT5V]
 + Sphagnum insulosum Ångstr. ex Schimp. [SYNONYM SPECIES 281824:BVXBP nidx=null parent=4YT5V]
Sphagnum intermedium var. pulchrum
 - Sphagnum intermedium var. pulchrum Lindb. [SYNONYM VARIETY 278910:9TFBF nidx=null parent=4YTBX]
 + Sphagnum intermedium var. pulchrum Lindb. ex Braithw. [SYNONYM VARIETY 281824:BW2FY nidx=null parent=4YTBX]
Sphagnum lenense
 - Sphagnum lenense H. Lindb. ex Pohle [ACCEPTED SPECIES 278910:9KV54 nidx=null]
 + Sphagnum lenense H. Lindb. [ACCEPTED SPECIES 281824:BVBK8 nidx=null]
Sphagnum papillosum var. stenophyllum
 - Sphagnum papillosum var. stenophyllum Lindb. [SYNONYM VARIETY 278910:9TFG9 nidx=null parent=4YTBC]
 + Sphagnum papillosum var. stenophyllum Braithw. [SYNONYM VARIETY 281824:BW2G2 nidx=null parent=4YTBC]
Sphagnum pylaesii var. sedoides
 - Sphagnum pylaesii var. sedoides (Brid.) Lindb. [SYNONYM VARIETY 278910:9TKK7 nidx=null parent=4YTC3]
 + Sphagnum pylaesii var. sedoides (Brid.) Austin [SYNONYM VARIETY 281824:BW2GB nidx=null parent=4YTC3]
Sphagnum subsecundum subsp. inundatum
 - Sphagnum subsecundum subsp. inundatum (Russow) Meyl. [SYNONYM SUBSPECIES 278910:9NBLN nidx=null parent=6YY5X]
 + Sphagnum subsecundum subsp. inundatum (Russow) Bott. [SYNONYM SUBSPECIES 281824:BW24T nidx=null parent=6YY5X]
Sphagnum vermiculare
 - Sphagnum vermiculare P. Beauv. [SYNONYM SPECIES 278910:9VXXW nidx=null parent=9K2WB]
 + Sphagnum vermiculare Brid. [SYNONYM SPECIES 281824:BVXBT nidx=null parent=7259N]
Sphodromerus coeleosyriensis
 - Sphodromerus coeleosyriensis [SYNONYM SPECIES 278910:8Q3ZG nidx=null parent=PSX9]
 + Sphodromerus coeleosyriensis (Giglio-Tos, 1893) [SYNONYM SPECIES 281824:BVX3F nidx=null parent=PSX9]
Spirulida
 - Spirulida Stolley, 1919 [ACCEPTED ORDER 278910:7NFG7 nidx=null]
 + Spirulida Haeckel, 1866 [ACCEPTED ORDER 281824:BVB4Z nidx=null]
Stellaria debilis
 - Stellaria debilis [ACCEPTED SPECIES 278910:4ZRBZ nidx=null]
 + Stellaria debilis d'Urv. [ACCEPTED SPECIES 281824:BVTBY nidx=null]
Stenobothrus discoidalis
 - Stenobothrus discoidalis [SYNONYM SPECIES 278910:9GTVS nidx=null parent=7KRDZ]
 + Stenobothrus discoidalis (Eversmann, 1848) [SYNONYM SPECIES 281824:4ZVXB nidx=null parent=7KRDZ]
Stenobothrus melanopterus
 - Stenobothrus melanopterus [SYNONYM SPECIES 278910:8PK8J nidx=null parent=7KRDZ]
 + Stenobothrus melanopterus (Borck, 1848) [SYNONYM SPECIES 281824:4ZVYX nidx=null parent=7KRDZ]
Stenobothrus morio
 - Stenobothrus morio [SYNONYM SPECIES 278910:8PK8L nidx=null parent=8Q6G4]
 + Stenobothrus morio (Charpentier, 1825) [SYNONYM SPECIES 281824:BVX8B nidx=null parent=7KRDZ]
Stenozonotriletes simplex
 - Stenozonotriletes simplex S.N. Naumova ex Bolkh. [SYNONYM SPECIES 278910:BLLWS nidx=null parent=BLN7T]
 + Stenozonotriletes simplex S.N. Naumova [SYNONYM SPECIES 281824:9THVJ nidx=null parent=BLN7T]
Stephanocaryum
 - Stephanocaryum Pop. [ACCEPTED GENUS 278910:7N29 nidx=null]
 + Stephanocaryum Pop. [SYNONYM UNRANKED 281824:BVDXL nidx=null parent=823Q]
Stereisporites apolaris
 - Stereisporites apolaris (P. Reinh.) A. Miki [ACCEPTED SPECIES 278910:9WFF5 nidx=null]
 + Stereisporites apolaris (P. Reinh.) Eb. Schulz [ACCEPTED SPECIES 281824:BVXDD nidx=null]
Stereisporites stereoides
 - Stereisporites stereoides (R. Potonié & Venitz) Pflug ex K. Takah. [ACCEPTED SPECIES 278910:BLLWV nidx=null]
 + Stereisporites stereoides (R. Potonié & Venitz) P.W. Thomson & Pflug [ACCEPTED SPECIES 281824:9THVN nidx=null]
Stereophyllum chlorophyllum
 - Stereophyllum chlorophyllum (Hornsch.) Mitt. [SYNONYM SPECIES 278910:9SYYK nidx=null parent=9KN3P]
 + Stereophyllum chlorophyllum (Hornsch.) Spruce [SYNONYM SPECIES 281824:BVXDK nidx=null parent=9KN3P]
Stereophyllum cultelliforme
 - Stereophyllum cultelliforme (Sull.) Mitt. [SYNONYM SPECIES 278910:9SYYR nidx=null parent=9VPVH]
 + Stereophyllum cultelliforme (Sull.) Spruce [SYNONYM SPECIES 281824:BVXDL nidx=null parent=9VPVH]
Stereophyllum leucostegum
 - Stereophyllum leucostegum (Brid.) Mitt. [SYNONYM SPECIES 278910:9SYZC nidx=null parent=39YV7]
 + Stereophyllum leucostegum (Brid.) Spruce [SYNONYM SPECIES 281824:BVTFQ nidx=null parent=39YV7]
Stereophyllum radiculosum
 - Stereophyllum radiculosum (Hook.) Mitt. [ACCEPTED SPECIES 278910:6ZRBY nidx=null]
 + Stereophyllum radiculosum (Hook.) Spruce [ACCEPTED SPECIES 281824:BVBKF nidx=null]
Steromphala pennanti
 - Steromphala pennanti (R. A. Philippi, 1846) [ACCEPTED SPECIES 278910:52G3B nidx=null]
 + Steromphala pennanti (R. A. Philippi, 1851) [ACCEPTED SPECIES 281824:BVTGK nidx=null]
Steropleurus cavannae
 - Steropleurus cavannae [SYNONYM SPECIES 278910:8Q44W nidx=null parent=6FPW6]
 + Steropleurus cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281824:BVXCT nidx=null parent=6FPW6]
Stictocoris lineatus
 - Stictocoris lineatus Sahlberg, 1842 [AMBIGUOUS_SYNONYM SPECIES 278910:9G9HH nidx=null parent=8RN4M]
 + Stictocoris lineatus (Fabricius, 1787) [SYNONYM SPECIES 281824:BVXCW nidx=null parent=52K3K]
Stomaphis (Parastomaphis) cupressi
 - Stomaphis (Parastomaphis) cupressi (Pintera, 1965) [ACCEPTED SPECIES 278910:8QV6B nidx=null]
 + Stomaphis (Parastomaphis) cupressi (Pintera, 1965) [ACCEPTED SPECIES 281824:BVTHL nidx=null]
Stomaphis (Stomaphis) pini
 - Stomaphis (Stomaphis) pini Takahashi, 1920 [ACCEPTED SPECIES 278910:8PKC2 nidx=null]
 + Stomaphis (Stomaphis) pini Takahashi, 1920 [ACCEPTED SPECIES 281824:BVXC6 nidx=null]
Streptorhynchidae
 - Streptorhynchidae Stehli, 1954 [SYNONYM INFRAORDER 278910:BTNT4 nidx=null parent=BTY4R]
 + Streptorhynchidae Stehli, 1954 [SYNONYM FAMILY 281824:BW2KV nidx=null parent=BTY4R]
Subbelba partiocrispa
 - Subbelba partiocrispa (Bulanova-Zachvatkina, 1957) [ACCEPTED SPECIES 278910:53CWW nidx=null]
 + Subbelba partiocrispa (Bulanova-Zachvatkina, 1967) [SYNONYM SPECIES 281824:BVXDX nidx=null parent=BW3RG]
Subsaltusaphis (Subsaltusaphis) lambersi
 - Subsaltusaphis (Subsaltusaphis) lambersi (Quednau, 1954) [ACCEPTED SPECIES 278910:53DLL nidx=null]
 + Subsaltusaphis (Subsaltusaphis) lambersi (Quednau, 1954) [ACCEPTED SPECIES 281824:BVXDZ nidx=null]
Suctobelbella (Suctobelbella) naranensis
 - Suctobelbella (Suctobelbella) naranensis Hammer, 1967 [ACCEPTED SPECIES 278910:7B43H nidx=null]
 + Suctobelbella (Suctobelbella) naranensis Hammer, 1977 [ACCEPTED SPECIES 281824:BVXF3 nidx=null]
Suctobelbella (Suctobelbella) palustris
 - Suctobelbella (Suctobelbella) palustris (Forsslund, 1953) [ACCEPTED SPECIES 278910:7B3DB nidx=null]
 + Suctobelbella (Suctobelbella) palustris (Forsslund, 1950) [ACCEPTED SPECIES 281824:BVXF4 nidx=null]
Sycinula penicillata
 - Sycinula penicillata Schmidt, 1869 [ACCEPTED SPECIES 278910:8577Q nidx=null]
 + Sycinula penicillata Schmidt, 1869 [SYNONYM SPECIES 281824:53LPH nidx=null parent=BW4G8]
Symplectoscyphus johnstoni f. johnstoni
 - Symplectoscyphus johnstoni f. johnstoni Ralph, 1961 [SYNONYM FORM 278910:5T2LS nidx=null parent=53R2Q]
 + Symplectoscyphus johnstoni f. johnstoni (Gray, 1843) [SYNONYM FORM 281824:BV9MD nidx=null parent=53R2Q]
Syntrichia aculeata
 - Syntrichia aculeata (Wilson ex Mitt.) R.H. Zander [SYNONYM SPECIES 278910:53ZPM nidx=null parent=53ZPT]
 + Syntrichia aculeata (Wilson ex Mitt.) Spruce [SYNONYM SPECIES 281824:BVXHG nidx=null parent=53ZPT]
Syntrichia glacialis
 - Syntrichia glacialis (Kunze ex Müll. Hal.) R.H. Zander [ACCEPTED SPECIES 278910:53ZQN nidx=null]
 + Syntrichia glacialis (Kunze ex Müll. Hal.) Spruce [ACCEPTED SPECIES 281824:BVXHH nidx=null]
Syntrichia handelii
 - Syntrichia handelii (Schiffn.) S. Agnew & Vondr. [ACCEPTED SPECIES 278910:53ZQQ nidx=null]
 + Syntrichia handelii (Schiffn.) Bachurina [ACCEPTED SPECIES 281824:BVTY3 nidx=null]
Systegium nitidulum
 - Systegium nitidulum (Müll. Hal.) A. Jaeger [SYNONYM SPECIES 278910:9SZR2 nidx=null parent=5BWWW]
 + Systegium nitidulum (Schimp.) Austin [SYNONYM SPECIES 281824:BVXJ6 nidx=null parent=5BWWW]
Systegium sullivantii
 - Systegium sullivantii (Bruch & Schimp.) A. Jaeger [SYNONYM SPECIES 278910:9SZR5 nidx=null parent=5BWWW]
 + Systegium sullivantii (Schimp.) Austin [SYNONYM SPECIES 281824:BVXJ7 nidx=null parent=5BWWW]
Tayloria papulata
 - Tayloria papulata Müll. Hal. [SYNONYM SPECIES 278910:9T23S nidx=null parent=9T23N]
 + Tayloria papulata Müll. Hal. ex Lorentz [SYNONYM SPECIES 281824:BVXK7 nidx=null parent=9T23N]
Tayloria scabriseta
 - Tayloria scabriseta (Hook.) Mitt. [ACCEPTED SPECIES 278910:552CT nidx=null]
 + Tayloria scabriseta (Hook.) Spruce [ACCEPTED SPECIES 281824:BVV2Y nidx=null]
Tectarioideae
 - Tectarioideae Holttum [PROVISIONALLY_ACCEPTED SUBFAMILY 278910:628P4 nidx=null]
 + Tectarioideae B. K. Nayar [PROVISIONALLY_ACCEPTED SUBFAMILY 281824:BVBDH nidx=null]
Temnocephalida
 - Temnocephalida Blanchard, 1849 [PROVISIONALLY_ACCEPTED OTHER 278910:BSFVF nidx=null]
 - Temnocephalida Blanchard, 1849 [SYNONYM OTHER 278910:BSFVG nidx=null parent=8V4VJ]
 + Temnocephalida Blanchard, 1849 [PROVISIONALLY_ACCEPTED SECTION_ZOOLOGY 281824:8NKFQ nidx=null]
 + Temnocephalida Blanchard, 1849 [SYNONYM SECTION_ZOOLOGY 281824:BGXX7 nidx=null parent=8V4VJ]
Tetilla anamonaena
 - Tetilla anamonaena (Tanita, 1968) [ACCEPTED SPECIES 278910:55KSH nidx=null]
 + Tetilla anamonaena Lehnert & Stone, 2011 [ACCEPTED SPECIES 281824:BVXMB nidx=null]
Tetracapsuloides bryosalmonae
 - Tetracapsuloides bryosalmonae [ACCEPTED SPECIES 278910:85Z3K nidx=null]
 + Tetracapsuloides bryosalmonae (Canning, Curry, Feist, Longshaw & Okamura, 1999) [ACCEPTED SPECIES 281824:BVV62 nidx=null]
Tetraneura (Tetraneura) ulmoides
 - Tetraneura (Tetraneura) ulmoides Lichtenstein, 1880 [ACCEPTED SPECIES 278910:8PKK4 nidx=null]
 + Tetraneura (Tetraneura) ulmoides Lichtenstein, 1880 [ACCEPTED SPECIES 281824:BVXMX nidx=null]
Tetraneura (Tetraneurella) nigriabdominalis
 - Tetraneura (Tetraneurella) nigriabdominalis [ACCEPTED SPECIES 278910:55Q4N nidx=null]
 + Tetraneura (Tetraneurella) nigriabdominalis [ACCEPTED SPECIES 281824:BV8YK nidx=null]
 + Tetraneura (Tetraneurella) nigriabdominalis [AMBIGUOUS_SYNONYM SPECIES 281824:BV8YM nidx=null parent=8PLS7]
Tettix crassus
 - Tettix crassus [SYNONYM SPECIES 278910:8PKN2 nidx=null parent=5LGPD]
 + Tettix crassus (Morse, 1899) [SYNONYM SPECIES 281824:55WPX nidx=null parent=5LGPD]
Textulariida
 - Textulariida [ACCEPTED ORDER 278910:47H nidx=null]
 + Textulariida Lankester, 1885 [ACCEPTED ORDER 281824:BV8FR nidx=null]
Thalictreae
 - Thalictreae Langl. ex D.Z.Fu [SYNONYM UNRANKED 278910:7NMBG nidx=null parent=628B2]
 + Thalictreae Langlet ex D.Z.Fu [SYNONYM UNRANKED 281824:BVBFX nidx=null parent=628B2]
Thamnium alleghaniense
 - Thamnium alleghaniense (Müll. Hal.) A. Jaeger [SYNONYM SPECIES 278910:9T286 nidx=null parent=7C5D3]
 + Thamnium alleghaniense (Müll. Hal.) Austin [SYNONYM SPECIES 281824:BVXQL nidx=null parent=7C5D3]
Thamnium fasciculatum
 - Thamnium fasciculatum (Sw. ex Hedw.) Müll. Hal. [SYNONYM SPECIES 278910:9T29P nidx=null parent=9KXLS]
 + Thamnium fasciculatum (Sw. ex Hedw.) Spruce [SYNONYM SPECIES 281824:BVXQM nidx=null parent=9KXLS]
Thamnotrizon frivaldskyi
 - Thamnotrizon frivaldskyi [SYNONYM SPECIES 278910:8Q4FP nidx=null parent=4GLST]
 + Thamnotrizon frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281824:BVXQK nidx=null parent=4GLST]
Thamnotrizon friwaldszkyi
 - Thamnotrizon friwaldszkyi [SYNONYM SPECIES 278910:8Q4FQ nidx=null parent=4GLST]
 + Thamnotrizon friwaldszkyi (Herman, 1871) [SYNONYM SPECIES 281824:BVXRN nidx=null parent=4GLST]
Thamyris
 - Thamyris Claus, 1879 [SYNONYM GENUS 278910:BGSH8 nidx=null parent=7NR53]
 + Thamyris Spence Bate, 1863 [SYNONYM GENUS 281824:BVFWQ nidx=null parent=7NR53]
Therioaphis (Pterocallidium) trifolii
 - Therioaphis (Pterocallidium) trifolii (Monell, 1882) [ACCEPTED SPECIES 278910:7BXD6 nidx=null]
 + Therioaphis (Pterocallidium) trifolii (Monell, 1882) [ACCEPTED SPECIES 281824:BVD45 nidx=null]
Thoracotremata
 - Thoracotremata Guinot, 1977 [ACCEPTED OTHER 278910:8PS7T nidx=null]
 + Thoracotremata Guinot, 1977 [ACCEPTED SUBSECTION_ZOOLOGY 281824:BVFJ7 nidx=null]
Thuidium gracile var. lancastriense
 - Thuidium gracile var. lancastriense (Sull. & Lesq.) Macoun & Kindb. [SYNONYM VARIETY 278910:9WD42 nidx=null parent=6LB8B]
 + Thuidium gracile var. lancastriense (Sull. & Lesq.) Austin [SYNONYM VARIETY 281824:BW2GM nidx=null parent=6LB8B]
Thuidium gracile var. ravenelii
 - Thuidium gracile var. ravenelii (Sull.) Cardot [SYNONYM VARIETY 278910:9VPQJ nidx=null parent=3JM6Y]
 + Thuidium gracile var. ravenelii (Sull.) Austin [SYNONYM VARIETY 281824:BW2GN nidx=null parent=3JM6Y]
Thuidium involvens
 - Thuidium involvens (Hedw.) Mitt. [SYNONYM SPECIES 278910:9N6H4 nidx=null parent=6TYNW]
 + Thuidium involvens (Hedw.) Spruce [SYNONYM SPECIES 281824:BVXV2 nidx=null parent=6TYNW]
Thuidium leptocladum
 - Thuidium leptocladum (Taylor) Mitt. [SYNONYM SPECIES 278910:9T2LV nidx=null parent=75YNW]
 + Thuidium leptocladum (Taylor) Spruce [SYNONYM SPECIES 281824:BVXV3 nidx=null parent=75YNW]
Thuidium microphyllum
 - Thuidium microphyllum (Sw. ex Hedw.) A. Jaeger [SYNONYM SPECIES 278910:9T2MJ nidx=null parent=3JM6Y]
 + Thuidium microphyllum (Sw. ex Hedw.) Spruce [SYNONYM SPECIES 281824:BVXV4 nidx=null parent=3JM6Y]
Thuidium pauperum
 - Thuidium pauperum (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9T2NL nidx=null parent=6TYNY]
 + Thuidium pauperum (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVXV5 nidx=null parent=6TYNY]
Thuidium schistocalyx
 - Thuidium schistocalyx (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9T2PZ nidx=null parent=6TYP3]
 + Thuidium schistocalyx (Müll. Hal.) Spruce [SYNONYM SPECIES 281824:BVXV6 nidx=null parent=6TYP3]
Tmethis laevisculis
 - Tmethis laevisculis [SYNONYM SPECIES 278910:8Q4HP nidx=null parent=5LK82]
 + Tmethis laevisculis Krauss, 1892 [SYNONYM SPECIES 281824:BVXZ9 nidx=null parent=5LK82]
Tortula denticulata
 - Tortula denticulata (Wilson) Mitt. [SYNONYM SPECIES 278910:9MQPY nidx=null parent=3KV4R]
 + Tortula denticulata (Wilson) Spruce [SYNONYM SPECIES 281824:BVY2C nidx=null parent=3KV4R]
Tortula mniifolia
 - Tortula mniifolia (Sull.) Mitt. [SYNONYM SPECIES 278910:9T3F9 nidx=null parent=378P9]
 + Tortula mniifolia (Sull.) Spruce [SYNONYM SPECIES 281824:BVVCB nidx=null parent=378P9]
Tortula plinthobia
 - Tortula plinthobia (Sull. & Lesq.) Broth. [ACCEPTED SPECIES 278910:57HVT nidx=null]
 + Tortula plinthobia (Sull. & Lesq.) Austin [ACCEPTED SPECIES 281824:BVVCC nidx=null]
Torynommoida
 - Torynommoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRH62 nidx=null]
 + Torynommoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281824:BDM5R nidx=null]
Toxoptera auranti
 - Toxoptera auranti (Boyer de Fonscolombe, 1841) [SYNONYM SPECIES 278910:BJF9W nidx=null parent=5DJNG]
 + Toxoptera auranti (Boyer de Fonscolombe, 1841) [SYNONYM SPECIES 281824:BVD4W nidx=null parent=5DJNG]
Trapoideae
 - Trapoideae Voigt [SYNONYM UNRANKED 278910:7NM44 nidx=null parent=628KQ]
 + Trapoideae Link [SYNONYM UNRANKED 281824:BVBDJ nidx=null parent=628KQ]
Traulia kukenthali
 - Traulia kukenthali [SYNONYM SPECIES 278910:BTBQW nidx=null parent=BV659]
 + Traulia kukenthali Ramme, 1941 [SYNONYM SPECIES 281824:57YGC nidx=null parent=BV659]
Trichilioideae
 - Trichilioideae Kostel. [SYNONYM UNRANKED 278910:KG7 nidx=null parent=JVZ]
 + Trichilioideae Luerss. [SYNONYM UNRANKED 281824:BVBDL nidx=null parent=JVZ]
Trichophoxus epistomus
 - Trichophoxus epistomus [SYNONYM SPECIES 278910:58H7Z nidx=null parent=4S67K]
 + Trichophoxus epistomus (Shoemaker, 1938) [SYNONYM SPECIES 281824:BVY45 nidx=null parent=4S67K]
Tritia pellucida
 - Tritia pellucida (Risso, 1827) [ACCEPTED SPECIES 278910:9G6GY nidx=null]
 + Tritia pellucida (Risso, 1826) [ACCEPTED SPECIES 281824:7D6FT nidx=null]
Trochus erythraeus
 - Trochus erythraeus Brocchi, 1821 [SYNONYM SPECIES 278910:5983V nidx=null parent=7CVNQ]
 + Trochus erythraeus [sic] [SYNONYM SPECIES 281824:BVY74 nidx=null parent=7CVNQ]
Trochus pennanti
 - Trochus pennanti R. A. Philippi, 1846 [SYNONYM SPECIES 278910:BHM7K nidx=null parent=52G3B]
 + Trochus pennanti R. A. Philippi, 1851 [SYNONYM SPECIES 281824:BVY75 nidx=null parent=BVTGK]
Tropicanus (Tropicanus)
 - Tropicanus (Tropicanus) DeLong, 1944 [ACCEPTED SUBGENUS 278910:BMM4Q nidx=null]
 + Tropicanus (Tropicanus) DeLong, 1944 [ACCEPTED SUBGENUS 281824:BVF43 nidx=null]
Troya riveti
 - Troya riveti Roewer, 1923 [ACCEPTED SPECIES 278910:BCS7P nidx=null]
 + Troya riveti Roewer, 1914 [ACCEPTED SPECIES 281824:7Z6KN nidx=null]
Tuberocephalus (Tuberocephalus) sasakii
 - Tuberocephalus (Tuberocephalus) sasakii (Matsumura, 1917) [ACCEPTED SPECIES 278910:59JHC nidx=null]
 + Tuberocephalus (Tuberocephalus) sasakii (Matsumura, 1917) [ACCEPTED SPECIES 281824:BVVLC nidx=null]
Turbella galiciana
 - Turbella galiciana (Schmidt, 1858) [SYNONYM SPECIES 278910:59ML7 nidx=null parent=76W2X]
 + Turbella galiciana (Schmidt, 1858) Diesing, 1862 [SYNONYM SPECIES 281824:BVY98 nidx=null parent=76W2X]
Typhlocyba stactogala
 - Typhlocyba stactogala Perris, 1857 [SYNONYM SPECIES 278910:8RP4Z nidx=null parent=9WS86]
 + Typhlocyba stactogala (Walker, 1851) [SYNONYM SPECIES 281824:BVYCQ nidx=null parent=9WS86]
Typhloiulus lobifer
 - Typhloiulus lobifer Attems, 1951 [ACCEPTED SPECIES 278910:8N5J9 nidx=null]
 + Typhloiulus lobifer Attems, 1951 [SYNONYM SPECIES 281824:59WTB nidx=null parent=3PTHQ]
Typhloplana pallida
 - Typhloplana pallida Schmidt, 1948 [SYNONYM SPECIES 278910:7DCTN nidx=null parent=6SQK5]
 + Typhloplana pallida (Schmidt, 1948) Diesing, 1862 [SYNONYM SPECIES 281824:BVYCS nidx=null parent=6SQK5]
Typocerus sinuata
 - Typocerus sinuata [AMBIGUOUS_SYNONYM SPECIES 278910:BTC5M nidx=null parent=59YCB]
 + Typocerus sinuata [AMBIGUOUS_SYNONYM SPECIES 281824:BVVQL nidx=null parent=59YCB]
Typosyllis ehlersoides
 - Typosyllis ehlersoides [ACCEPTED SPECIES 278910:59YPD nidx=null]
 + Typosyllis ehlersoides [database misspelling] [SYNONYM SPECIES 281824:BVYCZ nidx=null parent=BW45P]
Typosyllis ehlersoides japonica
 - Typosyllis ehlersoides japonica Buzhinskaja, 1985 [SYNONYM SUBSPECIES 278910:5LP94 nidx=null parent=5F9ZN]
 + Typosyllis ehlersoides japonica [database misspelling] [SYNONYM SUBSPECIES 281824:BW22J nidx=null parent=BW45P]
Uroleucon (Uroleucon) jaceicola
 - Uroleucon (Uroleucon) jaceicola (Hille Ris Lambers, 1939) [ACCEPTED SPECIES 278910:7DVT6 nidx=null]
 + Uroleucon (Uroleucon) jaceicola (Hille Ris Lambers, 1939) [ACCEPTED SPECIES 281824:BVVV6 nidx=null]
Uroleucon (Uromelan) lactucicola
 - Uroleucon (Uromelan) lactucicola [ACCEPTED SPECIES 278910:BBFGL nidx=null]
 + Uroleucon (Uromelan) lactucicola [ACCEPTED SPECIES 281824:BVVV8 nidx=null]
Uromenus cavannae
 - Uromenus cavannae [SYNONYM SPECIES 278910:8Q4Q8 nidx=null parent=6FPW6]
 + Uromenus cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281824:BVYH2 nidx=null parent=6FPW6]
Urothoe ruber
 - Urothoe ruber Rabindranath, 1971 [AMBIGUOUS_SYNONYM SPECIES 278910:7DZNY nidx=null parent=7DZQH]
 + Urothoe ruber Giles, 1890 [SYNONYM SPECIES 281824:BVYH3 nidx=null parent=7DZQH]
Valerianeae
 - Valerianeae Höck ex Graebn. [SYNONYM UNRANKED 278910:93LV8 nidx=null parent=7NM4Q]
 + Valerianeae Dumort. [SYNONYM UNRANKED 281824:BVBG4 nidx=null parent=7NM4Q]
Vasseuriidae
 - Vasseuriidae [ACCEPTED FAMILY 278910:7NXB7 nidx=null]
 + Vasseuriidae Naef, 1921 [ACCEPTED FAMILY 281824:BVB9N nidx=null]
Velezia clavata
 - Velezia clavata [AMBIGUOUS_SYNONYM SPECIES 278910:8VG96 nidx=null parent=992JF]
 + Velezia clavata d'Urv. [SYNONYM SPECIES 281824:9YPH4 nidx=null parent=992JF]
Verbascum seydisehirense
 - Verbascum seydisehirense Tugay & Uluku ÅŸ [ACCEPTED SPECIES 278910:7Z6TX nidx=null]
 + Verbascum seydisehirense [ACCEPTED SPECIES 281824:7G2FK nidx=null]
Vitrinellidae
 - Vitrinellidae K. J. Bush, 18997 [ACCEPTED FAMILY 278910:9JJFJ nidx=null]
 + Vitrinellidae K. J. Bush, 1897 [ACCEPTED FAMILY 281824:7NLJX nidx=null]
Vittarioideae
 - Vittarioideae (C. Presl) Crabbe, Jermy & Mickel [ACCEPTED SUBFAMILY 278910:B8X4X nidx=null]
 + Vittarioideae Link [ACCEPTED SUBFAMILY 281824:BV8R2 nidx=null]
Viviparus leiostracus leiostracus
 - Viviparus leiostracus leiostracus Brusina, 1874 [ACCEPTED SUBSPECIES 278910:7V49Y nidx=null]
 + Viviparus leiostracus leiostracus Brusina, 1874 [SYNONYM SUBSPECIES 281824:5LS64 nidx=null parent=5BNHB]
Walkerana
 - Walkerana Otte & Perez-Gelabert, 2009 [ACCEPTED GENUS 278910:8P2RQ nidx=null]
 + Walkerana [ACCEPTED GENUS 281824:87FV nidx=null]
Webera carnea
 - Webera carnea (L. ex F. Weber & D. Mohr) Schimp. [SYNONYM SPECIES 278910:9N7G4 nidx=null parent=4KWK3]
 + Webera carnea (L. ex F. Weber & D. Mohr) Fürnr. [SYNONYM SPECIES 281824:BVYLV nidx=null parent=4KWK3]
Webera wilsonii
 - Webera wilsonii (Mitt.) A. Jaeger [SYNONYM SPECIES 278910:9T52W nidx=null parent=9SRNY]
 + Webera wilsonii (Mitt.) Spruce [SYNONYM SPECIES 281824:BVYLX nidx=null parent=9SRNY]
Weinmannia microphylla
 - Weinmannia microphylla Kunth [AMBIGUOUS_SYNONYM SPECIES 278910:5BWPG nidx=null parent=5BWKJ]
 + Weinmannia microphylla Ruiz & Pav. [AMBIGUOUS_SYNONYM SPECIES 281824:BVW6K nidx=null parent=5BWKJ]
Weissia viridula
 - Weissia viridula Hedw. ex Brid. [SYNONYM SPECIES 278910:9N7J3 nidx=null parent=5BWVX]
 + Weissia viridula Hedw. ex H. Mart. [SYNONYM SPECIES 281824:BVF78 nidx=null parent=5BWVX]
Xiphinema diversicaudatum
 - Xiphinema diversicaudatum (Micoletzky, 1923 &, 1927) Thorne, 1939 [ACCEPTED SPECIES 278910:8FTM8 nidx=null]
 + Xiphinema diversicaudatum (Micoletzky, 1923) Thorne, 1939 [ACCEPTED SPECIES 281824:BVBLB nidx=null]
Zonites dallianus
 - Zonites dallianus C. T. Simpson, 1889 [SYNONYM SPECIES 278910:7TP6Q nidx=null parent=7SNNS]
 + Zonites dallianus Pilsbry, 1889 [SYNONYM SPECIES 281824:BVYQY nidx=null parent=BVSXL]
Zygaena apicefusca
 - Zygaena apicefusca Reiss, 1941 [SYNONYM SPECIES 278910:BRFC7 nidx=null parent=94GCY]
 + Zygaena apicefusca Reiss, 1941 [SYNONYM SPECIES 281824:BVZ34 nidx=null parent=94GCY]
 + Zygaena apicefusca Reiss, 1940 [SYNONYM SPECIES 281824:BVZ35 nidx=null parent=94GCY]
 + Zygaena apicefusca Reiss, 1941 [SYNONYM SPECIES 281824:BVZ36 nidx=null parent=94GCY]
 + Zygaena apicefusca Reiss, 1940 [AMBIGUOUS_SYNONYM SPECIES 281824:BVZ37 nidx=null parent=93SHD]
 + Zygaena apicefusca Reiss, 1940 [AMBIGUOUS_SYNONYM SPECIES 281824:BVZ38 nidx=null parent=93SHD]
 + Zygaena apicefusca Reiss, 1940 [AMBIGUOUS_SYNONYM SPECIES 281824:BVZ39 nidx=null parent=94CC7]
Zygaena cingulata
 - Zygaena cingulata Reiss, 1936 [SYNONYM SPECIES 278910:BTHW3 nidx=null parent=95DC6]
 + Zygaena cingulata Reiss, 1936 [SYNONYM SPECIES 281824:99X6C nidx=null parent=95DC6]
 + Zygaena cingulata Burgeff, 1914 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYS3 nidx=null parent=93SHR]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 281824:BVYS4 nidx=null parent=94FB3]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 281824:BVYS5 nidx=null parent=9448M]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 281824:BVYS6 nidx=null parent=944MB]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 281824:BVYS7 nidx=null parent=9447W]
 + Zygaena cingulata Holik & Sheljuzhko, 1956 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYS8 nidx=null parent=5D9SR]
 + Zygaena cingulata Holik & Sheljuzhko, 1956 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYS9 nidx=null parent=5D9FM]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 281824:BVYSB nidx=null parent=944CL]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 281824:BVYSC nidx=null parent=94FB3]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 281824:BVYSD nidx=null parent=94484]
 + Zygaena cingulata Reiss, 1935 [SYNONYM SPECIES 281824:BVYSF nidx=null parent=98VGQ]
 + Zygaena cingulata Reiss, 1935 [SYNONYM SPECIES 281824:BVYSG nidx=null parent=944GH]
 + Zygaena cingulata Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYSH nidx=null parent=93S9X]
 + Zygaena cingulata Dziurzynski, 1908 [SYNONYM SPECIES 281824:BVYSJ nidx=null parent=9447Q]
 + Zygaena cingulata Dziurzynski, 1908 [SYNONYM SPECIES 281824:BVYSK nidx=null parent=944P2]
 + Zygaena cingulata Turati, 1923 [SYNONYM SPECIES 281824:BVYSL nidx=null parent=944GY]
 + Zygaena cingulata Turati, 1923 [SYNONYM SPECIES 281824:BVYSM nidx=null parent=944P9]
 + Zygaena cingulata Holik, 1935 [SYNONYM SPECIES 281824:BVYSN nidx=null parent=9447W]
 + Zygaena cingulata Reiss, 1964 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYSP nidx=null parent=93SFJ]
 + Zygaena cingulata Holik & Reiss, 1932 [SYNONYM SPECIES 281824:BVYSQ nidx=null parent=94GCY]
 + Zygaena cingulata Vorbrodt, 1913 [SYNONYM SPECIES 281824:BVYSR nidx=null parent=94F9H]
Zygaena confluens
 - Zygaena confluens Holik & Reiss, 1932 [SYNONYM SPECIES 278910:BTHXJ nidx=null parent=9447W]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYST nidx=null parent=93SFK]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYSV nidx=null parent=93SJ6]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYSW nidx=null parent=93SD2]
 + Zygaena confluens Oberthür, 1910 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYSX nidx=null parent=93SHQ]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 281824:BVYSY nidx=null parent=9447S]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 281824:BVYSZ nidx=null parent=94F9F]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 281824:BVYT2 nidx=null parent=944NX]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 281824:BVYT3 nidx=null parent=94F9H]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 281824:BVYT4 nidx=null parent=944H5]
 + Zygaena confluens Koch, 1941 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYT5 nidx=null parent=93SCF]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 281824:BVYT6 nidx=null parent=98VGZ]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 281824:BVYT7 nidx=null parent=98VGZ]
 + Zygaena confluens Dziurzynski, 1908 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYT8 nidx=null parent=93S9X]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 281824:BVYT9 nidx=null parent=5LVKS]
 + Zygaena confluens Oberthür, 1896 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTB nidx=null parent=93SCF]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 281824:BVYTC nidx=null parent=944F8]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 281824:BVYTD nidx=null parent=944G4]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 281824:BVYTF nidx=null parent=944DR]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 281824:BVYTG nidx=null parent=95DBX]
 + Zygaena confluens Spuler, 1906 [SYNONYM SPECIES 281824:BVYTH nidx=null parent=944F8]
 + Zygaena confluens Spuler, 1906 [SYNONYM SPECIES 281824:BVYTJ nidx=null parent=944MF]
 + Zygaena confluens Dziurzynski, 1910 [SYNONYM SPECIES 281824:BVYTK nidx=null parent=944NJ]
 + Zygaena confluens Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTL nidx=null parent=93SHD]
 + Zygaena confluens Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTM nidx=null parent=93SFH]
 + Zygaena confluens Dziurzynski, 1906 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTN nidx=null parent=93S9X]
 + Zygaena confluens Dziurzynski, 1906 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTP nidx=null parent=93SK6]
 + Zygaena confluens Reiss, 1964 [SYNONYM SPECIES 281824:BVYTQ nidx=null parent=9446S]
 + Zygaena confluens Reiss, 1931 [SYNONYM SPECIES 281824:BVYTR nidx=null parent=5LVBL]
 + Zygaena confluens Reiss, 1931 [SYNONYM SPECIES 281824:BVYTS nidx=null parent=5LVBK]
 + Zygaena confluens Holik & Reiss, 1932 [AMBIGUOUS_SYNONYM SPECIES 281824:BVYTT nidx=null parent=93SCG]
 + Zygaena confluens Holik & Reiss, 1932 [SYNONYM SPECIES 281824:BVYTV nidx=null parent=944GG]
 + Zygaena confluens [École Bordelaise], 1933 [SYNONYM SPECIES 281824:BVYTW nidx=null parent=944DH]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 281824:BVYTX nidx=null parent=944GG]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 281824:BVYTY nidx=null parent=94493]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 281824:BVYTZ nidx=null parent=9448Y]
 + Zygaena confluens Rocci, 1914 [SYNONYM SPECIES 281824:BVYV2 nidx=null parent=944D6]
Zygodon rupestris
 - Zygodon rupestris (Lindb. ex C. Hartm.) Lindb. ex E. Britton [SYNONYM SPECIES 278910:9KZGQ nidx=null parent=5DB5C]
 + Zygodon rupestris (Lindb. ex C. Hartm.) Norrl. [SYNONYM SPECIES 281824:BVW9F nidx=null parent=5DB5C]