Acacia adunca
 - Acacia adunca Maiden [SYNONYM SPECIES 278910:9CMKF nidx=null parent=9CMXR]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281951:BVBHD nidx=null parent=BSJV5]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281951:BVBHF nidx=null parent=BSJVD]
 + Acacia adunca sens. Maiden [MISAPPLIED SPECIES 281951:BVBHG nidx=null parent=8PKC]
Acacia cuneata var. glabra
 - Acacia cuneata var. glabra Meisn. [SYNONYM VARIETY 278910:BSR5W nidx=null parent=BSKP3]
 + Acacia cuneata var. glabra Meisn. [AMBIGUOUS_SYNONYM VARIETY 281951:BVFGN nidx=null parent=9JPY4]
Acacia elliptica
 - Acacia elliptica A.Cunn. ex Benth. [SYNONYM SPECIES 278910:BSJSB nidx=null parent=BSGJ8]
 + Acacia elliptica A.Cunn. ex Benth. [AMBIGUOUS_SYNONYM SPECIES 281951:BVBHR nidx=null parent=BSGJ8]
Acacia etbaica
 - Acacia etbaica Schweinf. [SYNONYM SPECIES 278910:BSRS9 nidx=null parent=BSKWG]
 + Acacia etbaica Schweinf. [AMBIGUOUS_SYNONYM SPECIES 281951:BVFL4 nidx=null parent=BTMCZ]
Acacia falcata
 - Acacia falcata Siebold ex Steud. [SYNONYM SPECIES 278910:BSG9M nidx=null parent=8P8M]
 + Acacia falcata Desf. [SYNONYM SPECIES 281951:BV8TB 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 281951:BVGHC 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 281951:BVFL7 nidx=null parent=BTCF9]
Acacia horrida
 - Acacia horrida Span. [SYNONYM SPECIES 278910:BSJYK nidx=null parent=4WP2Y]
 + Acacia horrida (L.) Willd. [AMBIGUOUS_SYNONYM SPECIES 281951:BVBHT nidx=null parent=BSG6J]
Acacia leucadendron
 - Acacia leucadendron A.Cunn. ex Benth. [SYNONYM SPECIES 278910:BSK47 nidx=null parent=8NVR]
 + Acacia leucadendron A.Cunn. ex Benth. [AMBIGUOUS_SYNONYM SPECIES 281951:BVBHW nidx=null parent=BSJHW]
Acacia nigripilosus
 - Acacia nigripilosus Maiden [SYNONYM SPECIES 278910:9JPRC nidx=null parent=8PQP]
 + Acacia nigripilosus Maiden [SYNONYM SPECIES 281951:BVBHY nidx=null parent=BSK88]
Acacia pennata
 - Acacia pennata sens. Merr. [MISAPPLIED SPECIES 278910:9JPSN nidx=null parent=4WP3W]
 + Acacia pennata sens. Miq. [MISAPPLIED SPECIES 281951:BVBJ5 nidx=null parent=BT92Y]
 + Acacia pennata sens. Merr. [MISAPPLIED SPECIES 281951:BVBJ6 nidx=null parent=BSPYN]
 + Acacia pennata sens. Craib [MISAPPLIED SPECIES 281951:BVBJ7 nidx=null parent=BTN7C]
Acacia spathulata
 - Acacia spathulata Tausch [SYNONYM SPECIES 278910:9CN82 nidx=null parent=BSG5N]
 + Acacia spathulata F.Muell. ex Benth. [AMBIGUOUS_SYNONYM SPECIES 281951:BVBJ9 nidx=null parent=BSKK8]
Acacia uncinella
 - Acacia uncinella sens. Benth. [MISAPPLIED SPECIES 278910:9JPYH nidx=null parent=8PRT]
 + Acacia uncinella sens. Benth. [MISAPPLIED SPECIES 281951:BVBJB nidx=null parent=BSK96]
Acacia virchowiana
 - Acacia virchowiana Vatke & Hildebrandt [SYNONYM SPECIES 278910:BT7V5 nidx=null parent=5RZNC]
 + Acacia virchowiana Vatke & Hildebr. [AMBIGUOUS_SYNONYM SPECIES 281951:BVS6C 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 281951:64DSC nidx=null parent=7PZBX]
Acanthoderes (Psapharochrus) galapagoensis
 - Acanthoderes (Psapharochrus) galapagoensis [SYNONYM SPECIES 278910:BRQD7 nidx=null parent=BJHKY]
 + Acanthoderes (Psapharochrus) galapagoensis [SYNONYM SPECIES 281951:BVFPR nidx=null parent=BJHKY]
Acanthohamingia paradolum
 - Acanthohamingia paradolum [SYNONYM SPECIES 278910:BFJ28 nidx=null parent=CDSL]
 + Acanthohamingia paradolum Fisher, 1946 [SYNONYM SPECIES 281951:BVFQX 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 281951:BVFR8 nidx=null parent=BLWYB]
 + Acanthophorus (Tithoes) maculatus [AMBIGUOUS_SYNONYM SPECIES 281951:BVFRB nidx=null parent=BK2CD]
Acanthostega
 - Acanthostega [ACCEPTED INFRAORDER 278910:85GD4 nidx=null]
 + Acanthostega Levinsen, 1902 [ACCEPTED INFRAORDER 281951:BVB59 nidx=null]
Acanthostegomorpha
 - Acanthostegomorpha Levinsen, 1902 [ACCEPTED OTHER 278910:8PRTV nidx=null]
 + Acanthostegomorpha Levinsen, 1902 [ACCEPTED SECTION_ZOOLOGY 281951:BVFJN nidx=null]
Achyranthes repens
 - Achyranthes repens Elliott [SYNONYM SPECIES 278910:9XFFJ nidx=null parent=C9KQ]
 + Achyranthes repens Elliott [AMBIGUOUS_SYNONYM SPECIES 281951:99BM nidx=null parent=C9KQ]
Acleioprocta
 - Acleioprocta [SYNONYM OTHER 278910:BT7NC nidx=null parent=7NGMQ]
 + Acleioprocta [SYNONYM SECTION_ZOOLOGY 281951:BGXX3 nidx=null parent=7NGMQ]
Acleris brunneana
 - Acleris brunneana (Sheldon, 1930) [AMBIGUOUS_SYNONYM SPECIES 278910:BT7WY nidx=null parent=9CVY]
 + Acleris brunneana (Sheldon, 1930) [AMBIGUOUS_SYNONYM SPECIES 281951:BVS75 nidx=null parent=9CVY]
 + Acleris brunneana (Sheldon, 1931) [AMBIGUOUS_SYNONYM SPECIES 281951:BVS76 nidx=null parent=9D2Z]
Acoelopelophila
 - Acoelopelophila Dörjes, 1968 [ACCEPTED GENUS 278910:9GDFF nidx=null]
 + Acoelopelophila Ceccolini & Cianferoni, 2022 [ACCEPTED GENUS 281951:BVRDJ nidx=null]
Acropora lavandulina
 - Acropora lavandulina (Michelin, 1840) [ACCEPTED SPECIES 278910:9P2W nidx=null]
 + Acropora lavandulina (Michelin, 1842) [ACCEPTED SPECIES 281951:BVG29 nidx=null]
Acrostomum stannii
 - Acrostomum stannii [SYNONYM SPECIES 278910:9QQ2 nidx=null parent=7F9QJ]
 + Acrostomum stannii (Grube, 1840) [SYNONYM SPECIES 281951:BVG2D nidx=null parent=7F9QJ]
Acrotylus hottentottus
 - Acrotylus hottentottus [SYNONYM SPECIES 278910:8P4MR nidx=null parent=9RPT]
 + Acrotylus hottentottus Saussure, 1884 [SYNONYM SPECIES 281951:BVG2L nidx=null parent=9RPT]
Acrotylus humbertinus
 - Acrotylus humbertinus [SYNONYM SPECIES 278910:8PWLT nidx=null parent=64P4F]
 + Acrotylus humbertinus Saussure, 1884 [SYNONYM SPECIES 281951:BVG2M nidx=null parent=64P4F]
Acrotylus patrudis
 - Acrotylus patrudis [SYNONYM SPECIES 278910:8PWLW nidx=null parent=9RQF]
 + Acrotylus patrudis Herrich-Schäffer, 1838 [SYNONYM SPECIES 281951:BVG2N nidx=null parent=9RQF]
Acyrthosiphon (Acyrthosiphon) auctum
 - Acyrthosiphon (Acyrthosiphon) auctum (Walker, 1849) [ACCEPTED SPECIES 278910:9WH2 nidx=null]
 + Acyrthosiphon (Acyrthosiphon) auctum (Walker, 1849) [ACCEPTED SPECIES 281951:BVG3S nidx=null]
Acyrthosiphon (Acyrthosiphon) evodiae
 - Acyrthosiphon (Acyrthosiphon) evodiae [ACCEPTED SPECIES 278910:BFJRP nidx=null]
 + Acyrthosiphon (Acyrthosiphon) evodiae [ACCEPTED SPECIES 281951:BVG43 nidx=null]
Acyrthosiphon (Acyrthosiphon) ignotum
 - Acyrthosiphon (Acyrthosiphon) ignotum Mordvilko, 1914 [ACCEPTED SPECIES 278910:9WJ8 nidx=null]
 + Acyrthosiphon (Acyrthosiphon) ignotum Mordvilko, 1914 [ACCEPTED SPECIES 281951:BVG4D nidx=null]
Acyrthosiphon (Acyrthosiphon) primulae
 - Acyrthosiphon (Acyrthosiphon) primulae [ACCEPTED SPECIES 278910:9WKB nidx=null]
 + Acyrthosiphon (Acyrthosiphon) primulae [ACCEPTED SPECIES 281951:BVBKG nidx=null]
Acyrthosiphon (Acyrthosiphon) thracicum
 - Acyrthosiphon (Acyrthosiphon) thracicum [ACCEPTED SPECIES 278910:9WKV nidx=null]
 + Acyrthosiphon (Acyrthosiphon) thracicum [ACCEPTED SPECIES 281951:BVG4Y nidx=null]
Acyrthosiphon (Acyrthosiphon) vasiljevi
 - Acyrthosiphon (Acyrthosiphon) vasiljevi [ACCEPTED SPECIES 278910:BJHZR nidx=null]
 + Acyrthosiphon (Acyrthosiphon) vasiljevi [ACCEPTED SPECIES 281951:BVG53 nidx=null]
Adalaria albopapillosa
 - Adalaria albopapillosa Bergh, 1880 [SYNONYM SPECIES 278910:9WZ4 nidx=null parent=9WZC]
 + Adalaria albopapillosa (Dall, 1871) [SYNONYM SPECIES 281951:BVG5B nidx=null parent=9WZC]
Aega basalis
 - Aega basalis Heller, 1868 [SYNONYM SPECIES 278910:64VG7 nidx=null parent=Y9TJ]
 + Aega basalis Heller, 1865 [SYNONYM SPECIES 281951:BVG65 nidx=null parent=BVKZ6]
Aeneator (Aeneator) marshalli marshalli
 - Aeneator (Aeneator) marshalli marshalli (Murdoch, 1924) [SYNONYM SUBSPECIES 278910:5FF5C nidx=null parent=8SXTH]
 + Aeneator (Aeneator) marshalli marshalli (Murdoch, 1924) [SYNONYM SUBSPECIES 281951:BVWD5 nidx=null parent=BMYGB]
Aeolopus affinis
 - Aeolopus affinis [SYNONYM SPECIES 278910:8P4S4 nidx=null parent=5FGTS]
 + Aeolopus affinis (Bolívar, 1902) [SYNONYM SPECIES 281951:659MP nidx=null parent=5FGTS]
Agonum brunneus
 - Agonum brunneus (Letzner, 1852) unavailable name [SYNONYM SPECIES 278910:BFM5K nidx=null parent=664T3]
 + Agonum brunneus (Letzner, 1852) [SYNONYM SPECIES 281951:BVGBZ nidx=null parent=664T3]
Aiceona (Aiceona) paraosugii
 - Aiceona (Aiceona) paraosugii Ghosh, Ghosh & Raychaudhuri, 1971 [ACCEPTED SPECIES 278910:BC3L nidx=null]
 + Aiceona (Aiceona) paraosugii Ghosh, Ghosh & Raychaudhuri, 1971 [ACCEPTED SPECIES 281951:BVGFB nidx=null]
Allognathus (Iberellus) campanyonii minoricensis
 - Allognathus (Iberellus) campanyonii minoricensis (Mittre, 1842) [SYNONYM SUBSPECIES 278910:BTL4X nidx=null parent=B5726]
 + Allognathus (Iberellus) campanyonii minoricensis (Mittre, 1842) [SYNONYM SUBSPECIES 281951:BVZGM nidx=null parent=B5726]
Allosuctobelba (Allosuctobelba) nova
 - Allosuctobelba (Allosuctobelba) nova (Krivolutsky, 1971) [ACCEPTED SPECIES 278910:8T8MF nidx=null]
 + Allosuctobelba (Allosuctobelba) nova (Krivolustky, 1971) [ACCEPTED SPECIES 281951:BZJG nidx=null]
Alonsoeae
 - Alonsoeae Barringer [SYNONYM UNRANKED 278910:KKG nidx=null parent=JNF]
 + Alonsoeae Baill. [SYNONYM UNRANKED 281951:BVBDS nidx=null parent=JNF]
Altingioideae
 - Altingioideae Reinsch [SYNONYM UNRANKED 278910:J4R nidx=null parent=68K]
 + Altingioideae J.Williams [SYNONYM UNRANKED 281951:BVBB3 nidx=null parent=68K]
Alzateoideae
 - Alzateoideae van Beusekom [SYNONYM UNRANKED 278910:J4T nidx=null parent=6233L]
 + Alzateoideae Beusekom [SYNONYM UNRANKED 281951:BVBB5 nidx=null parent=6233L]
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 281951:BW28X 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 281951:BVZGR nidx=null parent=6MMFB]
Ambrosiaceae
 - Ambrosiaceae Martynov [SYNONYM UNRANKED 278910:7NFW8 nidx=null parent=622TP]
 + Ambrosiaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8H6 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 281951:BVSCZ 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 281951:BVSD4 nidx=null]
Amphoridium cyathicarpum
 - Amphoridium cyathicarpum (Mont.) A. Jaeger [SYNONYM SPECIES 278910:9RM6D nidx=null parent=D2F6]
 + Amphoridium cyathicarpum (Mont.) Spruce [SYNONYM SPECIES 281951:BVBLQ nidx=null parent=D2F6]
Amygdaloideae
 - Amygdaloideae [ACCEPTED SUBFAMILY 278910:7NDYQ nidx=null]
 + Amygdaloideae Arn. [ACCEPTED SUBFAMILY 281951:BVBB9 nidx=null]
Anacamptodon cubensis
 - Anacamptodon cubensis (Sull.) Mitt. [ACCEPTED SPECIES 278910:66JCY nidx=null]
 + Anacamptodon cubensis (Sull.) Spruce [ACCEPTED SPECIES 281951:BVGWV nidx=null]
Anachipteria (Weigmanniella) dubia
 - Anachipteria (Weigmanniella) dubia Weigmann, 2001 [PROVISIONALLY_ACCEPTED SPECIES 278910:8T9SR nidx=null]
 + Anachipteria (Weigmanniella) dubia Weigmann, 2001 [ACCEPTED SPECIES 281951:DBCJ nidx=null]
Anchomenus brunneus
 - Anchomenus brunneus Letzner, 1851 unavailable name [AMBIGUOUS_SYNONYM SPECIES 278910:BMPXW nidx=null parent=77PSY]
 + Anchomenus brunneus Letzner, 1852 [AMBIGUOUS_SYNONYM SPECIES 281951:BVGXX nidx=null parent=664T3]
 + Anchomenus brunneus Letzner, 1852 [AMBIGUOUS_SYNONYM SPECIES 281951:BVGXY nidx=null parent=6653F]
 + Anchomenus brunneus Letzner, 1851 [AMBIGUOUS_SYNONYM SPECIES 281951:BVGXZ nidx=null parent=4D4P4]
Anchusa linearifolia
 - Anchusa linearifolia [AMBIGUOUS_SYNONYM SPECIES 278910:DLYG nidx=null parent=DLZJ]
 + Anchusa linearifolia d'Urv. [SYNONYM SPECIES 281951:BVGZP nidx=null parent=DLZJ]
Anemone banketovii
 - Anemone banketovii Rukšans [ACCEPTED SPECIES 278910:7R999 nidx=null]
 + Anemone banketovii [ACCEPTED SPECIES 281951:BVH27 nidx=null]
Anoectangium aestivum
 - Anoectangium aestivum (Hedw.) Mitt. [ACCEPTED SPECIES 278910:5V5WM nidx=null]
 + Anoectangium aestivum (Hedw.) Spruce [ACCEPTED SPECIES 281951:BV93N 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 281951:BW294 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 281951:BVZGY nidx=null parent=5V84N]
Anthemidaceae
 - Anthemidaceae Martinov [SYNONYM UNRANKED 278910:6GV nidx=null parent=622TP]
 + Anthemidaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8H8 nidx=null parent=622TP]
Antirrhinoideae
 - Antirrhinoideae (Speta) Hartl & Betsche [ACCEPTED SUBFAMILY 278910:7NLMH nidx=null]
 + Antirrhinoideae Benth. [ACCEPTED SUBFAMILY 281951:BVBBB nidx=null]
Aongstroemia brevipes
 - Aongstroemia brevipes Hampe ex Besch. [SYNONYM SPECIES 278910:9RN7H nidx=null parent=BLRLP]
 + Aongstroemia brevipes Hampe ex Müll. Hal. [SYNONYM SPECIES 281951:BVSG5 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 281951:BVSG6 nidx=null parent=BLRLP]
Aphis (Aphis) aceroides
 - Aphis (Aphis) aceroides [ACCEPTED SPECIES 278910:8R2L7 nidx=null]
 + Aphis (Aphis) aceroides [ACCEPTED SPECIES 281951:BVHBF nidx=null]
Aphis (Aphis) alienus
 - Aphis (Aphis) alienus [ACCEPTED SPECIES 278910:FDRN nidx=null]
 + Aphis (Aphis) alienus [ACCEPTED SPECIES 281951:BVH7S nidx=null]
Aphis (Aphis) bupleuri-sensoriata
 - Aphis (Aphis) bupleuri-sensoriata Bozhko, 1959 [ACCEPTED SPECIES 278910:FDT5 nidx=null]
 + Aphis (Aphis) bupleuri-sensoriata Bozhko, 1959 [ACCEPTED SPECIES 281951:BVH84 nidx=null]
Aphis (Aphis) celastrii
 - Aphis (Aphis) celastrii Matsumura, 1917 [ACCEPTED SPECIES 278910:BSVMB nidx=null]
 + Aphis (Aphis) celastrii Matsumura, 1917 [ACCEPTED SPECIES 281951:FDTJ nidx=null]
Aphis (Aphis) cichorea
 - Aphis (Aphis) cichorea [ACCEPTED SPECIES 278910:5VLKC nidx=null]
 + Aphis (Aphis) cichorea [ACCEPTED SPECIES 281951:BVH88 nidx=null]
Aphis (Aphis) dilepha
 - Aphis (Aphis) dilepha [ACCEPTED SPECIES 278910:9HJNQ nidx=null]
 + Aphis (Aphis) dilepha [ACCEPTED SPECIES 281951:BVHC3 nidx=null]
Aphis (Aphis) dolichii
 - Aphis (Aphis) dolichii [ACCEPTED SPECIES 278910:FDVH nidx=null]
 + Aphis (Aphis) dolichii [ACCEPTED SPECIES 281951:BVH8M nidx=null]
Aphis (Aphis) exsors
 - Aphis (Aphis) exsors [ACCEPTED SPECIES 278910:BSVMW nidx=null]
 + Aphis (Aphis) exsors [ACCEPTED SPECIES 281951:FDW5 nidx=null]
Aphis (Aphis) galiae
 - Aphis (Aphis) galiae [ACCEPTED SPECIES 278910:BJLQZ nidx=null]
 + Aphis (Aphis) galiae [ACCEPTED SPECIES 281951:BVH8W nidx=null]
Aphis (Aphis) heraclicola
 - Aphis (Aphis) heraclicola [ACCEPTED SPECIES 278910:FDXJ nidx=null]
 + Aphis (Aphis) heraclicola [ACCEPTED SPECIES 281951:BVH96 nidx=null]
Aphis (Aphis) oenotherae
 - Aphis (Aphis) oenotherae Oestlund, 1887 [SYNONYM SPECIES 278910:8QW63 nidx=null parent=7GM8Y]
 + Aphis (Aphis) oenotherae Oestlund, 1887 [SYNONYM SPECIES 281951:BVBNZ nidx=null parent=7GM8Y]
Aphis (Aphis) polygoni
 - Aphis (Aphis) polygoni [ACCEPTED SPECIES 278910:BSVQG nidx=null]
 + Aphis (Aphis) polygoni [ACCEPTED SPECIES 281951:B83FH nidx=null]
Aphis (Aphis) populinigrae
 - Aphis (Aphis) populinigrae Gmelin, 1758 [ACCEPTED SPECIES 278910:8QZFS nidx=null]
 + Aphis (Aphis) populinigrae Gmelin, 1758 [ACCEPTED SPECIES 281951:BVHDF nidx=null]
Aphis (Aphis) radicum
 - Aphis (Aphis) radicum [ACCEPTED SPECIES 278910:8R2RJ nidx=null]
 + Aphis (Aphis) radicum [ACCEPTED SPECIES 281951:BVHDN nidx=null]
Aphis (Aphis) rubicolens
 - Aphis (Aphis) rubicolens [ACCEPTED SPECIES 278910:B3P3W nidx=null]
 + Aphis (Aphis) rubicolens [ACCEPTED SPECIES 281951:BVHCP nidx=null]
Aphis (Aphis) toriliae
 - Aphis (Aphis) toriliae [ACCEPTED SPECIES 278910:BFN6R nidx=null]
 + Aphis (Aphis) toriliae [ACCEPTED SPECIES 281951:BVHDT nidx=null]
Aphis (Aphis) typhae
 - Aphis (Aphis) typhae [ACCEPTED SPECIES 278910:67NF4 nidx=null]
 + Aphis (Aphis) typhae [ACCEPTED SPECIES 281951:BVHDY nidx=null]
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 281951:8QZQZ nidx=null]
Aphis (Cerosipha) beccabungae
 - Aphis (Cerosipha) beccabungae Koch, 1855 [SYNONYM SPECIES 278910:BSVST nidx=null parent=5DJMT]
 + Aphis (Cerosipha) beccabungae Koch, 1855 [SYNONYM SPECIES 281951:BVHFM nidx=null parent=5DJMT]
Aphis (Doralis) evonymi
 - Aphis (Doralis) evonymi Fabricius, 1775 [SYNONYM SPECIES 278910:BSVQJ nidx=null parent=5DJMN]
 + Aphis (Doralis) evonymi Fabricius, 1775 [SYNONYM SPECIES 281951:BVHCC nidx=null parent=5DJMN]
Aphis (Doralis) jacobaeae
 - Aphis (Doralis) jacobaeae Schrank, 1801 [SYNONYM SPECIES 278910:BSVNH nidx=null parent=FDYF]
 + Aphis (Doralis) jacobaeae Schrank, 1801 [SYNONYM SPECIES 281951:BVH9F nidx=null parent=FDYF]
Aphis (Doralis) vaccinii
 - Aphis (Doralis) vaccinii (Börner, 1940) [SYNONYM SPECIES 278910:BSVS8 nidx=null parent=5VNF5]
 + Aphis (Doralis) vaccinii (Börner, 1940) [SYNONYM SPECIES 281951:BVHF4 nidx=null parent=5VNF5]
Archaeobrachyura
 - Archaeobrachyura Guinot, 1977 [SYNONYM OTHER 278910:BT7NK nidx=null parent=B8WMW]
 + Archaeobrachyura Guinot, 1977 [SYNONYM SUBSECTION_ZOOLOGY 281951:BBRYF nidx=null parent=B8WMW]
Arcyptera brevipennis
 - Arcyptera brevipennis [ACCEPTED SPECIES 278910:8PX5G nidx=null]
 + Arcyptera brevipennis (Brunner von Wattenwyl, 1861) [SYNONYM SPECIES 281951:BVHLD nidx=null parent=5FRB3]
Arenaria pubescens
 - Arenaria pubescens [SYNONYM SPECIES 278910:GF6D nidx=null parent=5FRFJ]
 + Arenaria pubescens d'Urv. [SYNONYM SPECIES 281951:BVHLV nidx=null parent=5FRFJ]
Ascophora
 - Ascophora Levinsen, 1909 [PROVISIONALLY_ACCEPTED SUBORDER 278910:BF247 nidx=null]
 + Ascophora [ACCEPTED SUBORDER 281951:84JRK nidx=null]
Aspidium unitum var. glabrum
 - Aspidium unitum var. glabrum Mett. [AMBIGUOUS_SYNONYM VARIETY 278910:BD29K nidx=null parent=B9Z5Q]
 + Aspidium unitum var. glabrum Mett. [SYNONYM VARIETY 281951:BD29J nidx=null parent=B9Z5Q]
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 281951:BVSJX 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 281951:BVSK2 nidx=null parent=5BWWW]
Atherospermatoideae
 - Atherospermatoideae Endl. [SYNONYM UNRANKED 278910:J73 nidx=null parent=6VN]
 + Atherospermatoideae Burnett [SYNONYM UNRANKED 281951:BVBBJ 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 281951:BVZHM nidx=null parent=8RNNK]
Athysanus heideni
 - Athysanus heideni (Lethierry, 1876) [SYNONYM SPECIES 278910:8RHSP nidx=null parent=6T3XR]
 + Athysanus heideni (Fieber, 1872) [SYNONYM SPECIES 281951:BVHSS nidx=null parent=6T3XR]
Atrichum polycarpum
 - Atrichum polycarpum (Müll. Hal.) Schimp. ex Mitt. [ACCEPTED SPECIES 278910:JL4P nidx=null]
 + Atrichum polycarpum (Müll. Hal.) Schimp. ex Spruce [ACCEPTED SPECIES 281951:BVHR9 nidx=null]
Atriplex recurva
 - Atriplex recurva [ACCEPTED SPECIES 278910:JLNL nidx=null]
 + Atriplex recurva d'Urv. [ACCEPTED SPECIES 281951:BVHT9 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 281951:BVZHN nidx=null parent=BVHT9]
Aulacorthum (Aulacorthum) knautiae
 - Aulacorthum (Aulacorthum) knautiae [ACCEPTED SPECIES 278910:B9K8V nidx=null]
 + Aulacorthum (Aulacorthum) knautiae [ACCEPTED SPECIES 281951:BVHS2 nidx=null]
Aulacorthum (Aulacorthum) sedens
 - Aulacorthum (Aulacorthum) sedens [ACCEPTED SPECIES 278910:B83Z9 nidx=null]
 + Aulacorthum (Aulacorthum) sedens [ACCEPTED SPECIES 281951:BVHS6 nidx=null]
Aulacorthum (Aulacorthum) vaccinii
 - Aulacorthum (Aulacorthum) vaccinii Hille Ris Lambers, 1952 [ACCEPTED SPECIES 278910:JR6P nidx=null]
 + Aulacorthum (Aulacorthum) vaccinii Hille Ris Lambers, 1952 [ACCEPTED SPECIES 281951:BVHS9 nidx=null]
Aulacorthum (Neomyzus) circumflexum
 - Aulacorthum (Neomyzus) circumflexum (Buckton, 1876) [SYNONYM SPECIES 278910:BSL5K nidx=null parent=6RVQN]
 + Aulacorthum (Neomyzus) circumflexum (Buckton, 1876) [SYNONYM SPECIES 281951:BVBQZ nidx=null parent=6RVQN]
 + Aulacorthum (Neomyzus) circumflexum (Buckton, 1876) [SYNONYM SPECIES 281951:BVBR2 nidx=null parent=6RVQN]
Badura
 - Badura Mulsant & Rey, 1873 [SYNONYM GENUS 278910:BSL44 nidx=null parent=9JR2V]
 + Badura Mulsant & Rey, 1873 [SYNONYM GENUS 281951:9JR2W nidx=null parent=9JR2V]
 + Badura Mulsant & Rey, 1874 [SYNONYM GENUS 281951:BVBPT 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 281951:BVZHB nidx=null parent=KLBW]
Beella chathamensis
 - Beella chathamensis McCulloch, 1979 [SYNONYM SPECIES 278910:L6BQ nidx=null parent=L6BR]
 + Beella chathamensis McCulloch, 1977 [SYNONYM SPECIES 281951:BVBS8 nidx=null parent=L6BR]
Beella guadalupensis
 - Beella guadalupensis McCulloch, 1979 [SYNONYM SPECIES 278910:L6BT nidx=null parent=L6BR]
 + Beella guadalupensis McCulloch, 1977 [SYNONYM SPECIES 281951:BVBS9 nidx=null parent=L6BR]
Belopteridae
 - Belopteridae Owen, 1856 [ACCEPTED FAMILY 278910:8VM68 nidx=null]
 + Belopteridae Fischer, 1887 [ACCEPTED FAMILY 281951:BVB63 nidx=null]
Bertoniella agraeciodes
 - Bertoniella agraeciodes [SYNONYM SPECIES 278910:8PX8R nidx=null parent=65SLB]
 + Bertoniella agraeciodes (Rehn, 1911) [SYNONYM SPECIES 281951:BVHYV nidx=null parent=65SLB]
Beteae
 - Beteae Moq. [SYNONYM UNRANKED 278910:KMT nidx=null parent=J84]
 + Beteae Volkens [SYNONYM UNRANKED 281951:BVBDV nidx=null parent=J84]
Bicarinella
 - Bicarinella Akopyan, 1976 [PROVISIONALLY_ACCEPTED GENUS 278910:9WXJ6 nidx=null]
 + Bicarinella Waterhouse, 1966 [ACCEPTED GENUS 281951:BVRFX nidx=null]
Bicarinella bicarinata
 - Bicarinella bicarinata (Pchelintsev, 1953) [ACCEPTED SPECIES 278910:9WXMR nidx=null]
 + Bicarinella bicarinata (Waterhouse, 1963) [ACCEPTED SPECIES 281951:BVSM4 nidx=null]
Blechnoideae
 - Blechnoideae Gasper, V. A. O. Dittrich & Salino [ACCEPTED SUBFAMILY 278910:B8X2Z nidx=null]
 + Blechnoideae Hook. [ACCEPTED SUBFAMILY 281951:BV8PB nidx=null]
 + Blechnoideae Gasper, V.A.O.Dittrich & Salino [SYNONYM UNRANKED 281951:BV8PC nidx=null parent=BV8PB]
Blepharostoma setiforme
 - Blepharostoma setiforme (Ehrh.) Schiffn. [SYNONYM SPECIES 278910:9VB8L nidx=null parent=55P43]
 + Blepharostoma setiforme (Ehrh.) Lindb. [SYNONYM SPECIES 281951:BVSMC nidx=null parent=55P43]
Bolivaritettix tibetanis
 - Bolivaritettix tibetanis [SYNONYM SPECIES 278910:8PXB5 nidx=null parent=YZDM]
 + Bolivaritettix tibetanis (Zheng, 2005) [SYNONYM SPECIES 281951:BVJ2K nidx=null parent=YZDM]
Bolivaritettix tibetanus
 - Bolivaritettix tibetanus [SYNONYM SPECIES 278910:8PXB6 nidx=null parent=YZDM]
 + Bolivaritettix tibetanus (Zheng, 2005) [SYNONYM SPECIES 281951:BVJ2J nidx=null parent=YZDM]
Boraginoideae
 - Boraginoideae [ACCEPTED SUBFAMILY 278910:7NDYS nidx=null]
 + Boraginoideae Arn. [ACCEPTED SUBFAMILY 281951:BVBBM nidx=null]
Borlasia inmaculata
 - Borlasia inmaculata [SYNONYM SPECIES 278910:MKFP nidx=null parent=3BNZ5]
 + Borlasia inmaculata Bürger, 1892 [SYNONYM SPECIES 281951:BVJ2R nidx=null parent=3BNZ5]
Bothrocaracris bolivari
 - Bothrocaracris bolivari [SYNONYM SPECIES 278910:8P6YT nidx=null parent=9HPL]
 + Bothrocaracris bolivari (Uvarov, 1950) [SYNONYM SPECIES 281951:MNND nidx=null parent=9HPL]
Botrychium ternatum var. daedaleum
 - Botrychium ternatum var. daedaleum Christ [AMBIGUOUS_SYNONYM VARIETY 278910:BD39M nidx=null parent=BBBWT]
 + Botrychium ternatum var. daedaleum Christ [SYNONYM VARIETY 281951:BD39L nidx=null parent=BBBWT]
Brachycaudus (Brachycaudus) prunidomesticae
 - Brachycaudus (Brachycaudus) prunidomesticae [ACCEPTED SPECIES 278910:BSWKD nidx=null]
 + Brachycaudus (Brachycaudus) prunidomesticae [ACCEPTED SPECIES 281951:8QYZF nidx=null]
Brachycaudus (Brachycaudus) viridanus
 - Brachycaudus (Brachycaudus) viridanus (Nevsky, 1929) [ACCEPTED SPECIES 278910:BSWK4 nidx=null]
 + Brachycaudus (Brachycaudus) viridanus (Nevsky, 1929) [ACCEPTED SPECIES 281951:68PXH nidx=null]
Brachymenium papillosum
 - Brachymenium papillosum A. Jaeger [SYNONYM SPECIES 278910:9RQRR nidx=null parent=4KWKJ]
 + Brachymenium papillosum Spruce [SYNONYM SPECIES 281951:BVSPD 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 281951:BVSPF nidx=null parent=9MNW8]
Brachyodontes
 - Brachyodontes Agassiz, 1846 [SYNONYM GENUS 278910:BG8L3 nidx=null parent=7NR2D]
 + Brachyodontes Herrmannsen, 1846 [SYNONYM GENUS 281951:BVDGF 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 281951:BW29L nidx=null parent=N2VY]
Brachythecium acutum
 - Brachythecium acutum (Mitt.) Sull. [ACCEPTED SPECIES 278910:N2VZ nidx=null]
 + Brachythecium acutum (Mitt.) Sull. ex Austin [ACCEPTED SPECIES 281951:BVJ4F nidx=null]
Brachythecium conostomum
 - Brachythecium conostomum (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:N2X3 nidx=null]
 + Brachythecium conostomum (Taylor) Spruce [ACCEPTED SPECIES 281951:BVJ4G 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 281951:BVSPJ nidx=null]
Brachythecium pseudorutabulum
 - Brachythecium pseudorutabulum (Hampe) A. Jaeger [SYNONYM SPECIES 278910:9RR57 nidx=null parent=N32P]
 + Brachythecium pseudorutabulum (Hampe) Spruce [SYNONYM SPECIES 281951:BVSPK nidx=null parent=N32P]
Brachyunguis afghanica
 - Brachyunguis afghanica Narzikulov & Umarov, 1971 [SYNONYM SPECIES 278910:9GWHL nidx=null parent=8R28Y]
 + Brachyunguis afghanica Narzikulov & Umarov, 1972 [SYNONYM SPECIES 281951:BVJ4N nidx=null parent=8R28Y]
 + Brachyunguis afghanica Narzikulov & Umarov, 1971 [SYNONYM SPECIES 281951:BVJ4P nidx=null parent=8R28Y]
Bracon polonicus
 - Bracon polonicus Fahringer, 1928 [SYNONYM SPECIES 278910:N45V nidx=null parent=5DNZQ]
 + Bracon polonicus Fahringer, 1928 [SYNONYM SPECIES 281951:BVJ4W nidx=null parent=5DNZQ]
 + Bracon polonicus Fahringer, 1927 [AMBIGUOUS_SYNONYM SPECIES 281951:BVJ4X nidx=null parent=5DNZW]
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 281951:BVB5Q nidx=null]
Breutelia integrifolia
 - Breutelia integrifolia (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:693HW nidx=null]
 + Breutelia integrifolia (Taylor) Spruce [ACCEPTED SPECIES 281951:BVJ5C 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 281951:BVJ5D nidx=null]
Bryum schimperi
 - Bryum schimperi A. Jaeger [AMBIGUOUS_SYNONYM SPECIES 278910:9RSZT nidx=null parent=4TFSB]
 + Bryum schimperi Sauerb. [AMBIGUOUS_SYNONYM SPECIES 281951:BVSQQ nidx=null parent=9SWJR]
Bryum socorrense
 - Bryum socorrense (Hampe) Mitt. [SYNONYM SPECIES 278910:9RT2Z nidx=null parent=9MZ4T]
 + Bryum socorrense (Hampe) Spruce [SYNONYM SPECIES 281951:BVSQR nidx=null parent=9MZ4T]
Byssocardium
 - Byssocardium Tournouër, 1882 [ACCEPTED GENUS 278910:7NZQJ nidx=null]
 + Byssocardium Munier-Chalmas, 1882 [ACCEPTED GENUS 281951:BVBRX nidx=null]
Caeculidae
 - Caeculidae [ACCEPTED FAMILY 278910:7J2 nidx=null]
 + Caeculidae Berlese, 1883 [ACCEPTED FAMILY 281951:BV8HL nidx=null]
Caeculoidea
 - Caeculoidea [ACCEPTED SUPERFAMILY 278910:4VV nidx=null]
 + Caeculoidea Berlese, 1883 [ACCEPTED SUPERFAMILY 281951:BV8GQ nidx=null]
Calendulaceae
 - Calendulaceae Link [SYNONYM UNRANKED 278910:622JL nidx=null parent=622TP]
 + Calendulaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8HM 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 281951:BVB5R 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 281951:BVS5H nidx=null]
Callicostella microcarpa
 - Callicostella microcarpa Ångstr. [SYNONYM SPECIES 278910:6984M nidx=null parent=56377]
 + Callicostella microcarpa Spruce [SYNONYM SPECIES 281951:BVJF4 nidx=null parent=56377]
Callicostella pallida
 - Callicostella pallida (Hornsch.) Ångstr. [ACCEPTED SPECIES 278910:PNQG nidx=null]
 + Callicostella pallida (Hornsch.) Spruce [ACCEPTED SPECIES 281951:BV9DK nidx=null]
Calliptamus ialicus
 - Calliptamus ialicus [SYNONYM SPECIES 278910:8PXFT nidx=null parent=5G4SM]
 + Calliptamus ialicus Linnaeus, 1758 [SYNONYM SPECIES 281951:BVJH6 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 281951:7NRLD nidx=null]
Caloptenopsis baliensis
 - Caloptenopsis baliensis [SYNONYM SPECIES 278910:8P7BW nidx=null parent=9HPM]
 + Caloptenopsis baliensis (Brancsik, 1893) [SYNONYM SPECIES 281951:Q2DH nidx=null parent=9HPM]
Caloptenopsis bifida
 - Caloptenopsis bifida [SYNONYM SPECIES 278910:8P7BX nidx=null parent=9HPT]
 + Caloptenopsis bifida (Chopard, 1941) [SYNONYM SPECIES 281951:Q2DJ nidx=null parent=9HPT]
Caloptenopsis liturifer
 - Caloptenopsis liturifer [SYNONYM SPECIES 278910:8P7C2 nidx=null parent=9HPT]
 + Caloptenopsis liturifer (Walker, 1870) [SYNONYM SPECIES 281951:5X6Z9 nidx=null parent=9HPT]
Caloptenopsis marginipennis
 - Caloptenopsis marginipennis [SYNONYM SPECIES 278910:8P7C3 nidx=null parent=9HQN]
 + Caloptenopsis marginipennis (Karsch, 1893) [SYNONYM SPECIES 281951:5X6YW nidx=null parent=9HQN]
Caloptenopsis orientalis
 - Caloptenopsis orientalis [SYNONYM SPECIES 278910:BSWVL nidx=null parent=9HPT]
 + Caloptenopsis orientalis (Schulthess, 1898) [SYNONYM SPECIES 281951:5X6YV nidx=null parent=9HPT]
Caloptenus ictericus
 - Caloptenus ictericus [SYNONYM SPECIES 278910:8P7CF nidx=null parent=5G4S3]
 + Caloptenus ictericus Serville, 1838 [SYNONYM SPECIES 281951:Q2GN nidx=null parent=5G4S3]
Caloptenus marginellus
 - Caloptenus marginellus [SYNONYM SPECIES 278910:8P7CG nidx=null parent=5G4SM]
 + Caloptenus marginellus Serville, 1838 [SYNONYM SPECIES 281951:Q2H5 nidx=null parent=5G4SM]
Campylium
 - Campylium (Sull.) Mitt. [ACCEPTED GENUS 278910:9JHZH nidx=null]
 + Campylium (Sull.) Spruce [ACCEPTED GENUS 281951:BV8LL nidx=null]
Campylodontium onustum
 - Campylodontium onustum (Hampe) A. Jaeger [SYNONYM SPECIES 278910:9RV6Q nidx=null parent=424RZ]
 + Campylodontium onustum (Hampe) Spruce [SYNONYM SPECIES 281951:BVSSB nidx=null parent=424RZ]
Campylopus areodictyon
 - Campylopus areodictyon (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:QHKC nidx=null]
 + Campylopus areodictyon (Müll. Hal.) Spruce [ACCEPTED SPECIES 281951:BVJJC nidx=null]
Campylopus filifolius
 - Campylopus filifolius (Hornsch.) Mitt. [ACCEPTED SPECIES 278910:9JY9X nidx=null]
 + Campylopus filifolius (Hornsch.) Spruce [ACCEPTED SPECIES 281951:BVJJD nidx=null]
Campylopus lamellinervis
 - Campylopus lamellinervis (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:QHNF nidx=null]
 + Campylopus lamellinervis (Müll. Hal.) Spruce [ACCEPTED SPECIES 281951:BVJJF nidx=null]
Campylopus porphyreodictyon
 - Campylopus porphyreodictyon (Müll. Hal.) Mitt. [SYNONYM SPECIES 278910:9VN35 nidx=null parent=9JY9X]
 + Campylopus porphyreodictyon (Müll. Hal.) Spruce [SYNONYM SPECIES 281951:BVSSJ nidx=null parent=BVJJD]
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 281951:BVSSK nidx=null parent=42S92]
 + Campylopus pusillus Schimp. ex Broth. [AMBIGUOUS_SYNONYM SPECIES 281951:BVSSL nidx=null parent=35QXN]
Caprifolioideae
 - Caprifolioideae (Juss.) [ACCEPTED SUBFAMILY 278910:J9V nidx=null]
 + Caprifolioideae Eaton [ACCEPTED SUBFAMILY 281951:BVBBT 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 281951:8L8QG nidx=null parent=8LQMG]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 281951:BVJMS nidx=null parent=8LW79]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 281951:BVJMT nidx=null parent=8LW3X]
 + Carabus viridis (G.Hauser, 1921) [AMBIGUOUS_SYNONYM SPECIES 281951:BVJMV nidx=null parent=8LVMC]
Carduaceae
 - Carduaceae Dumort. [SYNONYM UNRANKED 278910:7QW nidx=null parent=622TP]
 + Carduaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8HN nidx=null parent=622TP]
Cataloipus oberthueri
 - Cataloipus oberthueri [SYNONYM SPECIES 278910:8PXK5 nidx=null parent=5G9FX]
 + Cataloipus oberthueri Bolívar, 1890 [SYNONYM SPECIES 281951:BVJNV nidx=null parent=5G9FX]
Cavariella (Cavariella) aegopodii
 - Cavariella (Cavariella) aegopodii (Scopoli, 1763) [ACCEPTED SPECIES 278910:RXS3 nidx=null]
 + Cavariella (Cavariella) aegopodii (Scopoli, 1763) [ACCEPTED SPECIES 281951:BVBW8 nidx=null]
Celtidoideae
 - Celtidoideae Engl. [SYNONYM UNRANKED 278910:626TM nidx=null parent=7NV]
 + Celtidoideae A.Rich. ex Darl. [SYNONYM UNRANKED 281951:BVBBV 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 281951:BVSX2 nidx=null]
Centaurea mengenensis
 - Centaurea mengenensis Uysal & Åžirin [ACCEPTED SPECIES 278910:9VF6L nidx=null]
 + Centaurea mengenensis [ACCEPTED SPECIES 281951:BVSX3 nidx=null]
Centaureaceae
 - Centaureaceae Martynov [SYNONYM UNRANKED 278910:622LG nidx=null parent=622TP]
 + Centaureaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8HQ 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 281951:BVSX5 nidx=null parent=ZLVZ]
Ceratomyxa drepanopsettae
 - Ceratomyxa drepanopsettae Averintzev, 1908 [ACCEPTED SPECIES 278910:SNGK nidx=null]
 + Ceratomyxa drepanopsettae Awerinzew, 1907 [ACCEPTED SPECIES 281951:BVJS6 nidx=null]
Ceratozetes petrovi
 - Ceratozetes petrovi Kulijev, 1962 [SYNONYM SPECIES 278910:8SXRX nidx=null parent=SQMP]
 + Ceratozetes petrovi Kulijev, 1968 [SYNONYM SPECIES 281951:BVJSK nidx=null parent=7S49H]
Cerebratulus hubrechti
 - Cerebratulus hubrechti [SYNONYM SPECIES 278910:SWKR nidx=null parent=3V2Q2]
 + Cerebratulus hubrechti Langerhans, 1880 [SYNONYM SPECIES 281951:BVJSM nidx=null parent=3V2Q2]
Cereoideae
 - Cereoideae [SYNONYM UNRANKED 278910:997HL nidx=null parent=93LST]
 + Cereoideae Drude [SYNONYM UNRANKED 281951:BVBBW nidx=null parent=93LST]
Chaetosiphon (Pentatrichopus) coreanum
 - Chaetosiphon (Pentatrichopus) coreanum [ACCEPTED SPECIES 278910:BSXBR nidx=null]
 + Chaetosiphon (Pentatrichopus) coreanum [ACCEPTED SPECIES 281951:B6YNL nidx=null]
Chaetosiphon (Pentatrichopus) tetrarhodum
 - Chaetosiphon (Pentatrichopus) tetrarhodum (Walker, 1849) [ACCEPTED SPECIES 278910:69P3C nidx=null]
 + Chaetosiphon (Pentatrichopus) tetrarhodum (Walker, 1849) [ACCEPTED SPECIES 281951:BVBXJ nidx=null]
Choneplax
 - Choneplax P. P. Carpenter MS, Dall, 1882 [ACCEPTED GENUS 278910:7NSS3 nidx=null]
 + Choneplax P. P. Carpenter, 1882 [ACCEPTED GENUS 281951:BW59T nidx=null]
Cicadula quadrilineatus
 - Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 278910:BFSFH nidx=null parent=8JWBD]
 + Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 281951:BVK9F nidx=null parent=8JWBD]
Cichoriaceae
 - Cichoriaceae Durandé [SYNONYM UNRANKED 278910:7NGS6 nidx=null parent=622TP]
 + Cichoriaceae Juss. [SYNONYM UNRANKED 281951:88S nidx=null parent=622TP]
Cicindela inhumeralis
 - Cicindela inhumeralis Beuthin, 1892 unavailable name [AMBIGUOUS_SYNONYM SPECIES 278910:BMT6X nidx=null parent=8LWMN]
 + Cicindela inhumeralis Beuthin, 1893 [AMBIGUOUS_SYNONYM SPECIES 281951:BVKBF nidx=null parent=V87J]
 + Cicindela inhumeralis Beuthin, 1893 [AMBIGUOUS_SYNONYM SPECIES 281951:BVKBG nidx=null parent=8MBJ6]
 + Cicindela inhumeralis Beuthin, 1892 [AMBIGUOUS_SYNONYM SPECIES 281951:BVKBH nidx=null parent=8LWMN]
Cinara (Cinara) grande
 - Cinara (Cinara) grande Hottes, 1956 [ACCEPTED SPECIES 278910:VCTD nidx=null]
 + Cinara (Cinara) grande Hottes, 1956 [ACCEPTED SPECIES 281951:BVK87 nidx=null]
Cinara (Cinara) villosa
 - Cinara (Cinara) villosa Gillette & Palmer, 1931 [ACCEPTED SPECIES 278910:VCY6 nidx=null]
 + Cinara (Cinara) villosa Gillette & Palmer, 1931 [ACCEPTED SPECIES 281951:BVK8X nidx=null]
Cirolana rotunda
 - Cirolana rotunda [SYNONYM SPECIES 278910:VGFS nidx=null parent=42985]
 + Cirolana rotunda Bruce & Jones, 1978 [SYNONYM SPECIES 281951:BVK9G nidx=null parent=42985]
Cleioprocta
 - Cleioprocta [SYNONYM OTHER 278910:BT7ND nidx=null parent=7NGFW]
 + Cleioprocta [SYNONYM SECTION_ZOOLOGY 281951:BGXX5 nidx=null parent=7NGFW]
Cleomoideae
 - Cleomoideae Pax [SYNONYM UNRANKED 278910:93LT2 nidx=null parent=8BN]
 + Cleomoideae Burnett [SYNONYM UNRANKED 281951:BV8PK nidx=null parent=8BN]
Coelidia apicalis
 - Coelidia apicalis (Snellen van Vollenhoven, 1862) [ACCEPTED SPECIES 278910:WQQS nidx=null]
 + Coelidia apicalis (van Vollenhoven, 1862) [ACCEPTED SPECIES 281951:BV8VV nidx=null]
Collinsieae
 - Collinsieae [SYNONYM UNRANKED 278910:99687 nidx=null parent=7NLP6]
 + Collinsieae Meisn. [SYNONYM UNRANKED 281951:BVBFG nidx=null parent=7NLP6]
Colobanthus crassifolius
 - Colobanthus crassifolius [SYNONYM SPECIES 278910:X5X4 nidx=null parent=X5XN]
 + Colobanthus crassifolius (d'Urv.) Hook. fil. [SYNONYM SPECIES 281951:BVC5G nidx=null parent=X5XN]
Colpodota
 - Colpodota Mulsant & Rey, 1873 [SYNONYM GENUS 278910:BMKT9 nidx=null parent=NL3]
 + Colpodota Mulsant & Rey, 1874 [SYNONYM GENUS 281951:BVC22 nidx=null parent=NL3]
 + Colpodota Mulsant & Rey, 1873 [SYNONYM GENUS 281951:BVC23 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 281951:BV9G9 nidx=null]
Combretum malifolium
 - Combretum malifolium (H. Perrier) comb. ined. [PROVISIONALLY_ACCEPTED SPECIES 278910:5ZRHK nidx=null]
 + Combretum malifolium (Baker) Jongkind & Callm. [ACCEPTED SPECIES 281951:BVKQ4 nidx=null]
Compositae
 - Compositae Adans. [SYNONYM UNRANKED 278910:7NDYL nidx=null parent=622TP]
 + Compositae Giseke [SYNONYM UNRANKED 281951:5T83V nidx=null parent=622TP]
Connareae
 - Connareae Planch. [SYNONYM UNRANKED 278910:KQR nidx=null parent=JD6]
 + Connareae DC. [SYNONYM UNRANKED 281951:BVBFH nidx=null parent=JD6]
Conocephalus (Anisoptera) bilineatus
 - Conocephalus (Anisoptera) bilineatus (Erichson, 1842) [ACCEPTED SPECIES 278910:XPY5 nidx=null]
 + Conocephalus (Anisoptera) bilineatus (Erichson, 1842) [ACCEPTED SPECIES 281951:BVC2W nidx=null]
Conophyma bogojavlenskyi
 - Conophyma bogojavlenskyi [SYNONYM SPECIES 278910:8P8J3 nidx=null parent=XRQ5]
 + Conophyma bogojavlenskyi Tarbinsky, 1926 [SYNONYM SPECIES 281951:BVKWV nidx=null parent=XRQ5]
Conophyma heqinensis
 - Conophyma heqinensis [SYNONYM SPECIES 278910:9H3BV nidx=null parent=XRQN]
 + Conophyma heqinensis Zhang, Xu & Zhang, 2015 [SYNONYM SPECIES 281951:BVT3K nidx=null parent=XRQN]
Conophyma kusnetzovi
 - Conophyma kusnetzovi [SYNONYM SPECIES 278910:8P8J4 nidx=null parent=8QJVW]
 + Conophyma kusnetzovi Umnov, 1931 [SYNONYM SPECIES 281951:XRQX nidx=null parent=8QJVW]
Conophyma kuznetzovi
 - Conophyma kuznetzovi [SYNONYM SPECIES 278910:8P8J5 nidx=null parent=8QJVW]
 + Conophyma kuznetzovi Umnov, 1931 [SYNONYM SPECIES 281951:BVKWW nidx=null parent=8QJVW]
Conophyma olive
 - Conophyma olive [SYNONYM SPECIES 278910:8PY3B nidx=null parent=XRRJ]
 + Conophyma olive Huang, 2006 [SYNONYM SPECIES 281951:BVKWX nidx=null parent=XRRJ]
Conophyma predtetshenskii
 - Conophyma predtetshenskii [SYNONYM SPECIES 278910:8P8J6 nidx=null parent=XRRT]
 + Conophyma predtetshenskii Mistshenko, 1937 [SYNONYM SPECIES 281951:BVKWY nidx=null parent=XRRT]
Conophyma tarbinskii
 - Conophyma tarbinskii [SYNONYM SPECIES 278910:8P8J7 nidx=null parent=XRSH]
 + Conophyma tarbinskii Miram, 1931 [SYNONYM SPECIES 281951:BVKWZ nidx=null parent=XRSH]
Corallana basalis
 - Corallana basalis (Heller, 1868) [ACCEPTED SPECIES 278910:Y9TJ nidx=null]
 + Corallana basalis (Heller, 1865) [ACCEPTED SPECIES 281951:BVKZ6 nidx=null]
Cordulegaster lunifera
 - Cordulegaster lunifera Seyls, 1878 [SYNONYM SPECIES 278910:BSYLZ nidx=null parent=BV654]
 + Cordulegaster lunifera Selys, 1878 [SYNONYM SPECIES 281951:YC6D nidx=null parent=BW5DK]
Cosmobates tunicatus
 - Cosmobates tunicatus Balogh, 1970 [ACCEPTED SPECIES 278910:YTZY nidx=null]
 + Cosmobates tunicatus Balogh, 1959 [ACCEPTED SPECIES 281951:BVL25 nidx=null]
Cotysoides tibetanus
 - Cotysoides tibetanus [SYNONYM SPECIES 278910:8PY4N nidx=null parent=YZDM]
 + Cotysoides tibetanus (Zheng, 2005) [SYNONYM SPECIES 281951:BVL88 nidx=null parent=YZDM]
Craspedosoma rawlinsii transsilvanicum
 - Craspedosoma rawlinsii transsilvanicum Verhoeff, 1897 [ACCEPTED SUBSPECIES 278910:BN9B5 nidx=null]
 + Craspedosoma rawlinsii transsilvanicum Verhoeff, 1897 [ACCEPTED SUBSPECIES 281951:BVWJG nidx=null]
Crinocheta
 - Crinocheta Legrand, 1946 [ACCEPTED OTHER 278910:8PR7H nidx=null]
 + Crinocheta Legrand, 1946 [ACCEPTED SECTION_ZOOLOGY 281951:BVBTH nidx=null]
Cryphaea julacea
 - Cryphaea julacea (Dozy & Molk.) Mitt. [SYNONYM SPECIES 278910:9RXRR nidx=null parent=9SX5M]
 + Cryphaea julacea (Dozy & Molk.) Spruce [SYNONYM SPECIES 281951:BVT5X nidx=null parent=9SX5M]
Crypsinoideae
 - Crypsinoideae [ACCEPTED SUBFAMILY 278910:BDJ9N nidx=null]
 + Crypsinoideae B. K. Nayar [ACCEPTED SUBFAMILY 281951:BVRCQ nidx=null]
Cryptomyzus (Myzella) galeopsidis
 - Cryptomyzus (Myzella) galeopsidis (Kaltenbach, 1843) [SYNONYM SPECIES 278910:8QYLB nidx=null parent=5DXRM]
 + Cryptomyzus (Myzella) galeopsidis (Kaltenbach, 1843) [SYNONYM SPECIES 281951:BVL94 nidx=null parent=5DXRM]
Curtisioideae
 - Curtisioideae Harms [SYNONYM UNRANKED 278910:626TD nidx=null parent=8T5]
 + Curtisioideae Engl. [SYNONYM UNRANKED 281951:BVBC3 nidx=null parent=8T5]
Cyathocoenia golisensis
 - Cyathocoenia golisensis Latham, 1829 [ACCEPTED SPECIES 278910:BS9N8 nidx=null]
 + Cyathocoenia golisensis Latham, 1929 [ACCEPTED SPECIES 281951:BVYFN nidx=null]
Cyclas palustris
 - Cyclas palustris Draparnaud, 1801 [SYNONYM SPECIES 278910:8TXJ6 nidx=null parent=4J8NR]
 + Cyclas palustris Draparnaud, 1805 [SYNONYM SPECIES 281951:BVLGG 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 281951:BVS5J nidx=null]
Cymbiola (Cymbiola) magnifica magnifica
 - Cymbiola (Cymbiola) magnifica magnifica (Gebauer, 1802) [SYNONYM SUBSPECIES 278910:5GRMB nidx=null parent=8SY35]
 + Cymbiola (Cymbiola) magnifica magnifica (Gebauer, 1802) [SYNONYM SUBSPECIES 281951:BVWJW nidx=null parent=BNB6S]
Cynaraceae
 - Cynaraceae Durandé [SYNONYM UNRANKED 278910:7NH45 nidx=null parent=622TP]
 + Cynaraceae Burnett [SYNONYM UNRANKED 281951:BV8HW nidx=null parent=622TP]
Cyrtacanthacris carenicollis
 - Cyrtacanthacris carenicollis [SYNONYM SPECIES 278910:8PY5T nidx=null parent=7F9LS]
 + Cyrtacanthacris carenicollis (Blanchard, 1853) [SYNONYM SPECIES 281951:BVLJC nidx=null parent=7F9LS]
Cyrtacanthacris maculicollis
 - Cyrtacanthacris maculicollis [SYNONYM SPECIES 278910:8P8QQ nidx=null parent=7L6Q6]
 + Cyrtacanthacris maculicollis (Walker, 1870) [SYNONYM SPECIES 281951:6C8JF nidx=null parent=7L6Q6]
Cystosoma
 - Cystosoma Spence Bate, 1862 [SYNONYM GENUS 278910:BF3RC nidx=null parent=7NVBD]
 + Cystosoma [SYNONYM GENUS 281951:3Z4W nidx=null parent=7NVBD]
Dactynotus (Dactynotus) formosanum
 - Dactynotus (Dactynotus) formosanum (Takahashi, 1921) [SYNONYM SPECIES 278910:BSZ6W nidx=null parent=7J6FS]
 + Dactynotus (Dactynotus) formosanum (Takahashi, 1921) [SYNONYM SPECIES 281951:BVLL3 nidx=null parent=7J6FS]
Dainellidae
 - Dainellidae Hance, Hou & Vachard, 2011 [ACCEPTED FAMILY 278910:7ZSY5 nidx=null]
 + Dainellidae Cózar & Vachard, 2001 nom. transl. Hance, Hou & Vachard, 2011 [ACCEPTED FAMILY 281951:BVB6K nidx=null]
Dakoticancroida
 - Dakoticancroida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRGNT nidx=null]
 + Dakoticancroida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281951:BDJKM nidx=null]
Decticus stschukini
 - Decticus stschukini [SYNONYM SPECIES 278910:8QJ7Z nidx=null parent=7K53C]
 + Decticus stschukini (Fischer von Waldheim, 1846) [SYNONYM SPECIES 281951:BVLN4 nidx=null parent=7K53C]
Delthyrididae
 - Delthyrididae Waagen, 1883 [ACCEPTED FAMILY 278910:BTNJ9 nidx=null]
 + Delthyrididae Phillips, 1841 [ACCEPTED FAMILY 281951:BW2KD 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 281951:BVLNK nidx=null parent=5598F]
Derostoma caecum
 - Derostoma caecum Fuhrmann, 1894 [ACCEPTED SPECIES 278910:34YP9 nidx=null]
 + Derostoma caecum [SYNONYM SPECIES 281951:BVLS6 nidx=null parent=777QX]
Derostoma foliaceum
 - Derostoma foliaceum Böhmig, 1914 [SYNONYM SPECIES 278910:34YPF nidx=null parent=76VQX]
 + Derostoma foliaceum [SYNONYM SPECIES 281951:BVLS7 nidx=null parent=76VQX]
Desmophyllum striatum
 - Desmophyllum striatum Sismonda, 1871 [ACCEPTED SPECIES 278910:884SR nidx=null]
 + Desmophyllum striatum Michellotti, 1871 [ACCEPTED SPECIES 281951:BVLRH nidx=null]
Dianthus giganteus
 - Dianthus giganteus [ACCEPTED SPECIES 278910:6D22B nidx=null]
 + Dianthus giganteus d'Urv. [ACCEPTED SPECIES 281951:BV9ZD nidx=null]
Dichosomata
 - Dichosomata Balogh & Mahunka, 1979 [ACCEPTED OTHER 278910:8P49Z nidx=null]
 + Dichosomata Balogh & Mahunka, 1979 [ACCEPTED SECTION_ZOOLOGY 281951:BVFJP nidx=null]
Dicranella campylophylla
 - Dicranella campylophylla (Taylor) A. Jaeger [SYNONYM SPECIES 278910:9L9VY nidx=null parent=9RN7N]
 + Dicranella campylophylla (Taylor) Spruce [SYNONYM SPECIES 281951:BVLPK nidx=null parent=9RN7N]
Dicranella densa
 - Dicranella densa (Hook.) Mitt. [SYNONYM SPECIES 278910:35QTR nidx=null parent=9SGQR]
 + Dicranella densa (Hook.) Spruce [SYNONYM SPECIES 281951:BVLTW nidx=null parent=9SGQR]
Dicranella exigua
 - Dicranella exigua (Schwägr.) Mitt. [SYNONYM SPECIES 278910:6CS6Q nidx=null parent=9SGQW]
 + Dicranella exigua (Schwägr.) Spruce [SYNONYM SPECIES 281951:BVLTX nidx=null parent=9SGQW]
Dicranella jamesonii
 - Dicranella jamesonii (Mitt.) Broth. [SYNONYM SPECIES 278910:9RYQT nidx=null parent=9KX64]
 + Dicranella jamesonii (Mitt.) Spruce [SYNONYM SPECIES 281951:BVCB7 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 281951:BVCB8 nidx=null parent=BLRL8]
Dicranella vaginata
 - Dicranella vaginata (Hook.) Cardot [ACCEPTED SPECIES 278910:9RYTL nidx=null]
 + Dicranella vaginata (Hook.) Spruce [ACCEPTED SPECIES 281951:BVCB9 nidx=null]
Dicranum bergeri
 - Dicranum bergeri Blandow [SYNONYM SPECIES 278910:9MM6B nidx=null parent=35TPR]
 + Dicranum bergeri Blandow ex Hoppe [SYNONYM SPECIES 281951:BVTCP nidx=null parent=35TPR]
Dicuspiditermes leghugathrae
 - Dicuspiditermes leghugathrae Amina & Rajmohana, 2020 [ACCEPTED SPECIES 278910:9X6TT nidx=null]
 + Dicuspiditermes leghugathrae Poovoli & Keloth, 2020 [ACCEPTED SPECIES 281951:BVG3P nidx=null]
Didymodon campylocarpus
 - Didymodon campylocarpus (Müll. Hal.) Broth. [SYNONYM SPECIES 278910:9S223 nidx=null parent=5WSTB]
 + Didymodon campylocarpus (Müll. Hal.) Spruce [SYNONYM SPECIES 281951:BVTCS 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 281951:BV87Z nidx=null parent=BMH54]
Dinaraea (Aglypha)
 - Dinaraea (Aglypha) Mulsant & Rey, 1873 [SYNONYM SUBGENUS 278910:BSQV2 nidx=null parent=9JB2R]
 + Dinaraea (Aglypha) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 281951:BVFD4 nidx=null parent=9JB2R]
 + Dinaraea (Aglypha) Mulsant & Rey, 1873 [SYNONYM SUBGENUS 281951:BVFD5 nidx=null parent=9JB2R]
Dinoplax
 - Dinoplax P. P. Carpenter [in Dall], 1882 [ACCEPTED GENUS 278910:9JJSH nidx=null]
 + Dinoplax P. P. Carpenter, 1882 [ACCEPTED GENUS 281951:7NWW6 nidx=null]
Diplocheta
 - Diplocheta Vandel, 1957 [ACCEPTED OTHER 278910:8PR7J nidx=null]
 + Diplocheta Vandel, 1957 [ACCEPTED SECTION_ZOOLOGY 281951:BV8BJ 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 281951:BVLT2 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 281951:BVTDW 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 281951:BW2JQ 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 281951:BW2JR 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 281951:BW2JS nidx=null parent=6DC8X]
Dolicheremaeus furcillatus
 - Dolicheremaeus furcillatus Mahunka, 1977 [ACCEPTED SPECIES 278910:374N5 nidx=null]
 + Dolicheremaeus furcillatus Mahunka, 1997 [ACCEPTED SPECIES 281951:BVM27 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 281951:BVZPC nidx=null parent=9WK3Q]
Dreissena filifera
 - Dreissena filifera Andrusov, 1897 [ACCEPTED SPECIES 278910:9HPMH nidx=null]
 + Dreissena filifera Andrusov, 1893 [ACCEPTED SPECIES 281951:BVTG3 nidx=null]
Dreissensia filifera
 - Dreissensia filifera Andrusov, 1897 [SYNONYM SPECIES 278910:9HPN6 nidx=null parent=9HPMH]
 + Dreissensia filifera Andrusov, 1893 [SYNONYM SPECIES 281951:BVTG4 nidx=null parent=BVTG3]
Drepanaphis hjirayamae
 - Drepanaphis hjirayamae [SYNONYM SPECIES 278910:B72GK nidx=null parent=4F328]
 + Drepanaphis hjirayamae [SYNONYM SPECIES 281951:BVM82 nidx=null parent=4F328]
Drepanium
 - Drepanium (Schimp.) Lange & C.E.O. Jensen [ACCEPTED GENUS 278910:9KV3L nidx=null]
 + Drepanium (Schimp.) Spruce [ACCEPTED GENUS 281951:BV8P7 nidx=null]
Drepanium cupressiforme
 - Drepanium cupressiforme (Hedw.) G. Roth [SYNONYM SPECIES 278910:9S2NN nidx=null parent=3NSYR]
 + Drepanium cupressiforme (Hedw.) Spruce [SYNONYM SPECIES 281951:BVTG5 nidx=null parent=3NSYR]
Dromiacea
 - Dromiacea De Haan, 1833 [ACCEPTED OTHER 278910:BBP2S nidx=null]
 + Dromiacea De Haan, 1833 [ACCEPTED SECTION_ZOOLOGY 281951:BVS5K nidx=null]
Dryopteris falciculata var. elongata
 - Dryopteris falciculata var. elongata Rosenst. [AMBIGUOUS_SYNONYM VARIETY 278910:BD4J8 nidx=null parent=B9W2T]
 + Dryopteris falciculata var. elongata Rosenst. [SYNONYM VARIETY 281951:BD4J9 nidx=null parent=B9W2T]
Duabangoideae
 - Duabangoideae (Takht.) Graham, Thorne & Reveal [SYNONYM UNRANKED 278910:7NLQP nidx=null parent=628KQ]
 + Duabangoideae S.A.Graham, Thorne & Reveal [SYNONYM UNRANKED 281951:BVBC8 nidx=null parent=628KQ]
Dysaphis (Dysaphis) cousiniae
 - Dysaphis (Dysaphis) cousiniae [ACCEPTED SPECIES 278910:6DPKS nidx=null]
 + Dysaphis (Dysaphis) cousiniae [ACCEPTED SPECIES 281951:BVM99 nidx=null]
Dysaphis (Dysaphis) crataegi
 - Dysaphis (Dysaphis) crataegi (Kaltenbach, 1843) [ACCEPTED SPECIES 278910:386VV nidx=null]
 + Dysaphis (Dysaphis) crataegi (Kaltenbach, 1843) [ACCEPTED SPECIES 281951:BVM43 nidx=null]
Dysaphis (Dysaphis) longipilosa
 - Dysaphis (Dysaphis) longipilosa [ACCEPTED SPECIES 278910:386WK nidx=null]
 + Dysaphis (Dysaphis) longipilosa [ACCEPTED SPECIES 281951:BVM9F nidx=null]
Dysaphis (Dysaphis) newskyi
 - Dysaphis (Dysaphis) newskyi (Börner, 1940) [ACCEPTED SPECIES 278910:386WR nidx=null]
 + Dysaphis (Dysaphis) newskyi (Börner, 1940) [ACCEPTED SPECIES 281951:BVM46 nidx=null]
Dysaphis (Dysaphis) physocaulis
 - Dysaphis (Dysaphis) physocaulis [ACCEPTED SPECIES 278910:386WW nidx=null]
 + Dysaphis (Dysaphis) physocaulis [ACCEPTED SPECIES 281951:BVM48 nidx=null]
Dysaphis apifolia
 - Dysaphis apifolia Theobald, 1923 [SYNONYM SPECIES 278910:BFPM9 nidx=null parent=7H2JJ]
 + Dysaphis apifolia Theobald, 1923 [SYNONYM SPECIES 281951:BVC6J nidx=null parent=7H2JJ]
Echinopaceae
 - Echinopaceae Dumort. [SYNONYM UNRANKED 278910:9KJ nidx=null parent=622TP]
 + Echinopaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8J8 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 281951:BVMD8 nidx=null]
Elaphroconcha bataviana
 - Elaphroconcha bataviana (von dem Busch, 1842) [ACCEPTED SPECIES 278910:B879F nidx=null]
 + Elaphroconcha bataviana (L. Pfeiffer, 1842) [ACCEPTED SPECIES 281951:7R685 nidx=null]
Ellesmerella permica
 - Ellesmerella permica (Pia, 1937) [ACCEPTED SPECIES 278910:82F39 nidx=null]
 + Ellesmerella permica (Steinmann in Pia, 1937) [ACCEPTED SPECIES 281951:BVMGZ nidx=null]
Engelhardieae
 - Engelhardieae [SYNONYM UNRANKED 278910:9CGNB nidx=null parent=JJ2]
 + Engelhardieae W.E.Manning [SYNONYM UNRANKED 281951:BVBFK nidx=null parent=JJ2]
Entodon pallescens
 - Entodon pallescens (Müll. Hal.) Mitt. [ACCEPTED SPECIES 278910:39YTK nidx=null]
 + Entodon pallescens (Müll. Hal.) Spruce [ACCEPTED SPECIES 281951:BVMHR nidx=null]
Eodromites grandis
 - Eodromites grandis (von Meyer, 1857) [ACCEPTED SPECIES 278910:B4Z9K nidx=null]
 + Eodromites grandis (von Meyer, 1860) [ACCEPTED SPECIES 281951:BVTLC nidx=null]
Epacromia famulus
 - Epacromia famulus [SYNONYM SPECIES 278910:8PYN4 nidx=null parent=7J9BK]
 + Epacromia famulus (Fabricius, 1798) [SYNONYM SPECIES 281951:BVMKQ nidx=null parent=7J9BK]
Ephippigera perforata
 - Ephippigera perforata [SYNONYM SPECIES 278910:BT27D nidx=null parent=6G27D]
 + Ephippigera perforata (Rossius, 1790) [SYNONYM SPECIES 281951:6FQ8C nidx=null parent=6G27D]
Ephippigera verticalis
 - Ephippigera verticalis [SYNONYM SPECIES 278910:8P9LP nidx=null parent=6FQ77]
 + Ephippigera verticalis Fieber, 1853 [SYNONYM SPECIES 281951:6G287 nidx=null parent=6FQ77]
Ephippigerida cavannae
 - Ephippigerida cavannae [SYNONYM SPECIES 278910:8PYQ9 nidx=null parent=6FPW6]
 + Ephippigerida cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281951:BVMKS nidx=null parent=6FPW6]
Ephippigerida verticalis
 - Ephippigerida verticalis [SYNONYM SPECIES 278910:8P9LQ nidx=null parent=6FQ77]
 + Ephippigerida verticalis (Fieber, 1853) [SYNONYM SPECIES 281951:6FPY3 nidx=null parent=6FQ77]
Eremobelba breviseta
 - Eremobelba breviseta Balogh, 1958 [ACCEPTED SPECIES 278910:6GFCQ nidx=null]
 + Eremobelba breviseta Balogh, 1968 [ACCEPTED SPECIES 281951:BVMM9 nidx=null]
Ericoideae
 - Ericoideae Link [ACCEPTED SUBFAMILY 278910:BMJW6 nidx=null]
 + Ericoideae Arn. [ACCEPTED SUBFAMILY 281951:JJP nidx=null]
Eriopisella chieregoi
 - Eriopisella chieregoi Ruffo, 1985 [ACCEPTED SPECIES 278910:3B5G8 nidx=null]
 + Eriopisella chieregoi Ruffo, 1983 [ACCEPTED SPECIES 281951:BVMNB nidx=null]
Erpodium coronatum
 - Erpodium coronatum (Hook. & Wilson) Mitt. [SYNONYM SPECIES 278910:3B9GZ nidx=null parent=9VVRC]
 + Erpodium coronatum (Hook. & Wilson) Spruce [SYNONYM SPECIES 281951:BVCH5 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 281951:BVMKR nidx=null parent=3BDT8]
Erythropaloideae
 - Erythropaloideae (Tiegh.) Y.R.Ling [SYNONYM UNRANKED 278910:628J2 nidx=null parent=9VD]
 + Erythropaloideae Hassk. [SYNONYM UNRANKED 281951:BVBCJ nidx=null parent=9VD]
Etyoida
 - Etyoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BDJKF nidx=null]
 + Etyoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281951:BVS5L nidx=null]
Eubrachyura
 - Eubrachyura de Saint Laurent, 1980 [ACCEPTED OTHER 278910:8PS7Q nidx=null]
 + Eubrachyura de Saint Laurent, 1980 [ACCEPTED SECTION_ZOOLOGY 281951:B94FL nidx=null]
Eumida (Eumida)
 - Eumida (Eumida) [ACCEPTED SUBGENUS 278910:BSG6T nidx=null]
 + Eumida (Eumida) [ACCEPTED SUBGENUS 281951:BV8QH nidx=null]
Eumigus monticulus
 - Eumigus monticulus [SYNONYM SPECIES 278910:8PYTG nidx=null parent=6H8WN]
 + Eumigus monticulus Rambur, 1838 [SYNONYM SPECIES 281951:BVMRV nidx=null parent=6H8WN]
Eupatoriaceae
 - Eupatoriaceae Martynov [SYNONYM UNRANKED 278910:9Y2 nidx=null parent=622TP]
 + Eupatoriaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8JB nidx=null parent=622TP]
Eupithecia nigrofasciata
 - Eupithecia nigrofasciata Dietze [AMBIGUOUS_SYNONYM SPECIES 278910:BQQ86 nidx=null parent=6HBXK]
 + Eupithecia nigrofasciata Dietze [AMBIGUOUS_SYNONYM SPECIES 281951:BVTYC nidx=null parent=6HBXK]
 + Eupithecia nigrofasciata Dietze, 1910 [AMBIGUOUS_SYNONYM SPECIES 281951:BVTYD nidx=null parent=6HBJ2]
 + Eupithecia nigrofasciata Dietze, 1913 [AMBIGUOUS_SYNONYM SPECIES 281951:BVTYF nidx=null parent=6HC29]
 + Eupithecia nigrofasciata Dietze, 1913 [AMBIGUOUS_SYNONYM SPECIES 281951:BVTYG nidx=null parent=933HC]
Euptyctima
 - Euptyctima Grandjean, 1967 [ACCEPTED OTHER 278910:8P4B2 nidx=null]
 + Euptyctima Grandjean, 1967 [ACCEPTED SECTION_ZOOLOGY 281951:BVFJQ nidx=null]
Eurepa
 - Eurepa [SYNONYM GENUS 278910:8NRND nidx=null parent=8NVMW]
 + Eurepa Robillard, 2004 [ACCEPTED INFRATRIBE 281951:BV9LD nidx=null]
Eurhynchium boscii
 - Eurhynchium boscii (Schwägr.) A. Jaeger [SYNONYM SPECIES 278910:9W78Q nidx=null parent=5WST5]
 + Eurhynchium boscii (Schwägr.) Austin [SYNONYM SPECIES 281951:BVV26 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 281951:BVV28 nidx=null parent=9TJPV]
Europrosopon aculeatum
 - Europrosopon aculeatum (von Meyer, 1857) [ACCEPTED SPECIES 278910:B53VS nidx=null]
 + Europrosopon aculeatum (von Meyer, 1860) [SYNONYM SPECIES 281951:BVV2H nidx=null parent=BW5MZ]
Exorides festivus
 - Exorides festivus Marshall, 1951 [ACCEPTED SPECIES 278910:B6P4N nidx=null]
 + Exorides festivus Marshall, 1952 [ACCEPTED SPECIES 281951:3DPR4 nidx=null]
Flexitrichaceae
 - Flexitrichaceae Ignatov & Fedosov [ACCEPTED FAMILY 278910:9KTGC nidx=null]
 + Flexitrichaceae Ignatov & Fedosov ex D. Bell & Goffinet [ACCEPTED FAMILY 281951:BVG7G nidx=null]
Fortimesus concinnus
 - Fortimesus concinnus (Birstein, 1960) [ACCEPTED SPECIES 278910:6JKFY nidx=null]
 + Fortimesus concinnus (Birstein, 1971) [ACCEPTED SPECIES 281951:BVMYK nidx=null]
Foveolatacris quinghaiensis
 - Foveolatacris quinghaiensis [SYNONYM SPECIES 278910:8PYYC nidx=null parent=443RV]
 + Foveolatacris quinghaiensis (Yin, 1984) [SYNONYM SPECIES 281951:BVMZ4 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 281951:BVN2V nidx=null]
Gammarus (Parhomoeogammarus) lusitanus
 - Gammarus (Parhomoeogammarus) lusitanus Schellenberg, 1943 [SYNONYM SPECIES 278910:BSGDC nidx=null parent=B7NHC]
 + Gammarus (Parhomoeogammarus) lusitanus Schellenberg, 1943 [SYNONYM SPECIES 281951:BV8WG nidx=null parent=B7NHC]
Gampsocleis sedakowi
 - Gampsocleis sedakowi [SYNONYM SPECIES 278910:8PYYJ nidx=null parent=7K53C]
 + Gampsocleis sedakowi Fischer von Waldheim, 1846 [SYNONYM SPECIES 281951:BVN33 nidx=null parent=7K53C]
Gelastorhinus liaoningensis
 - Gelastorhinus liaoningensis Wang, 2007 [ACCEPTED SPECIES 278910:3FHKX nidx=null]
 + Gelastorhinus liaoningensis Lu, Wang & Ren, 2013 [ACCEPTED SPECIES 281951:3FHKY nidx=null]
Geocoris (Geocoris) ater
 - Geocoris (Geocoris) ater (Fabricius, 1787) [ACCEPTED SPECIES 278910:8Q6VV nidx=null]
 + Geocoris (Geocoris) ater (Fabricius, 1787) [ACCEPTED SPECIES 281951:BVMYS nidx=null]
Gibbula pennanti
 - Gibbula pennanti (R. A. Philippi, 1846) [SYNONYM SPECIES 278910:3FZLX nidx=null parent=52G3B]
 + Gibbula pennanti (R. A. Philippi, 1851) [SYNONYM SPECIES 281951:BVN6H nidx=null parent=BVTJ2]
Glyphocarpa comosa
 - Glyphocarpa comosa Hampe [SYNONYM SPECIES 278910:9VWLQ nidx=null parent=9SP9D]
 + Glyphocarpa comosa Hampe ex A. Jaeger [SYNONYM SPECIES 281951:BVV79 nidx=null parent=9SP9D]
Gomphrenoideae
 - Gomphrenoideae [SYNONYM UNRANKED 278910:BRWQV nidx=null parent=JM4]
 + Gomphrenoideae Lindl. [ACCEPTED SUBFAMILY 281951:BVBCM nidx=null]
Goniogryllus cirilinears
 - Goniogryllus cirilinears [SYNONYM SPECIES 278910:BV6PQ nidx=null parent=BV6KL]
 + Goniogryllus cirilinears Xie, 2005 [SYNONYM SPECIES 281951:BW5DQ nidx=null parent=BV6KL]
Goniogryllus potanini
 - Goniogryllus potanini [SYNONYM SPECIES 278910:8PZ34 nidx=null parent=3GWTQ]
 + Goniogryllus potanini Bey-Bienko, 1956 [SYNONYM SPECIES 281951:BVNFJ nidx=null parent=3GWTQ]
Grandaxinaea
 - Grandaxinaea Powell, 1979 [SYNONYM GENUS 278910:BGFHC nidx=null parent=7PK7X]
 + Grandaxinaea A. W. B. Powell, 1976 [SYNONYM GENUS 281951:BVDYG nidx=null parent=7PK7X]
Greenidea (Metagreenidea) schimae
 - Greenidea (Metagreenidea) schimae [SYNONYM SPECIES 278910:BT36B nidx=null parent=3HBZJ]
 + Greenidea (Metagreenidea) schimae [SYNONYM SPECIES 281951:BVNGD nidx=null parent=3HBZJ]
Grimmia funalis
 - Grimmia funalis (Schwägr.) Bruch & Schimp. [ACCEPTED SPECIES 278910:6KSP6 nidx=null]
 + Grimmia funalis (Schwägr.) Bruch ex De Not. [ACCEPTED SPECIES 281951:BV9M7 nidx=null]
Gryllus (Locusta) sanguinolentus
 - Gryllus (Locusta) sanguinolentus [SYNONYM SPECIES 278910:8PBRZ nidx=null parent=7KW97]
 + Gryllus (Locusta) sanguinolentus (De Geer, 1773) [SYNONYM SPECIES 281951:BVNHQ nidx=null parent=7KW97]
Gymnanthereae
 - Gymnanthereae Venter [SYNONYM UNRANKED 278910:628DM nidx=null parent=93MYX]
 + Gymnanthereae Y.Tsiang & P.T.Li [SYNONYM UNRANKED 281951:BVBFL nidx=null parent=93MYX]
Gymnodinium lohmannii
 - Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 278910:BSM82 nidx=null parent=3HRSS]
 + Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 281951:BVCPR nidx=null parent=6KV8Q]
 + Gymnodinium lohmannii Paulsen, 1908 [AMBIGUOUS_SYNONYM SPECIES 281951:BVCPS nidx=null parent=3HRSS]
Gymnogryllus elegans
 - Gymnogryllus elegans [SYNONYM SPECIES 278910:8PBXJ nidx=null parent=3HSL6]
 + Gymnogryllus elegans (Guérin-Méneville, 1834) [SYNONYM SPECIES 281951:3HSKT nidx=null parent=3HSL6]
Gymnopleura
 - Gymnopleura Bourne, 1922 [SYNONYM OTHER 278910:BSQ4R nidx=null parent=7NKT5]
 + Gymnopleura Bourne, 1922 [SYNONYM SUBSECTION_ZOOLOGY 281951: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 281951:BW2DS 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 281951:BVV8L nidx=null]
Haematoloechus complexus
 - Haematoloechus complexus (Seely, 1906) Ingles, 1932 [ACCEPTED SPECIES 278910:9Z88Y nidx=null]
 + Haematoloechus complexus (Seely, 1906) Krull, 1933 [ACCEPTED SPECIES 281951:BVV8N 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 281951:BVV8P 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 281951:BVV8Q nidx=null]
Haematoloechus japonicus
 - Haematoloechus japonicus (Yamaguti, 1936) Odening, 1960 [ACCEPTED SPECIES 278910:B3D5K nidx=null]
 + Haematoloechus japonicus (Yamaguti, 1936) Walton, 1948 [ACCEPTED SPECIES 281951:BVV8R 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 281951:BVV8S nidx=null]
Haematoloechus lobatus
 - Haematoloechus lobatus Seno, 1907 [ACCEPTED SPECIES 278910:9Z897 nidx=null]
 + Haematoloechus lobatus (Seno, 1907) Walton, 1948 [ACCEPTED SPECIES 281951:BVV8T nidx=null]
Haematoloechus parviplexus
 - Haematoloechus parviplexus (Irwin, 1929) Ingles, 1932 [ACCEPTED SPECIES 278910:9XTL9 nidx=null]
 + Haematoloechus parviplexus (Irwin, 1929) Harwood, 1932 [ACCEPTED SPECIES 281951:BVNKN nidx=null]
Haematoloechus schulzei
 - Haematoloechus schulzei (Wundsch, 1911) Odening, 1960 [ACCEPTED SPECIES 278910:B2LL7 nidx=null]
 + Haematoloechus schulzei (Wundsch, 1911) Odening, 1958 [ACCEPTED SPECIES 281951:BVV8X 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 281951:BVV8Y nidx=null]
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 281951:BVFX2 nidx=null parent=BNHK9]
Haplomesus concinnus
 - Haplomesus concinnus Birstein, 1960 [SYNONYM SPECIES 278910:3JMW6 nidx=null parent=6JKFY]
 + Haplomesus concinnus Birstein, 1971 [SYNONYM SPECIES 281951:BVNN8 nidx=null parent=BVMYK]
Haustorius arenarius
 - Haustorius arenarius Holmes, 1905 [AMBIGUOUS_SYNONYM SPECIES 278910:3JWGX nidx=null parent=75PV9]
 + Haustorius arenarius (Slabber, 1769) [SYNONYM SPECIES 281951:BVNCT nidx=null parent=75PV9]
Helianthaceae
 - Helianthaceae Dumort. [SYNONYM UNRANKED 278910:6252V nidx=null parent=622TP]
 + Helianthaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8JS 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 281951:7RKHR 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 281951:7RKQR 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 281951:BVNV5 nidx=null parent=3KRVC]
Herniaria hirsuta
 - Herniaria hirsuta [AMBIGUOUS_SYNONYM SPECIES 278910:7VCX9 nidx=null parent=3L2KK]
 + Herniaria hirsuta d'Urv. [AMBIGUOUS_SYNONYM SPECIES 281951:BVCRP nidx=null parent=3L2KK]
Heterocaryum
 - Heterocaryum A. DC. [ACCEPTED GENUS 278910:7PK29 nidx=null]
 + Heterocaryum A.DC. [SYNONYM UNRANKED 281951:7MZJ4 nidx=null parent=7Q4C]
Heterocaryum echinophorum
 - Heterocaryum echinophorum (Pall.) Brand [ACCEPTED SPECIES 278910:7VTF8 nidx=null]
 + Heterocaryum echinophorum (Pall.) Brand [SYNONYM SPECIES 281951:3L7ZN nidx=null parent=BW6PC]
Heterocaryum laevigatum
 - Heterocaryum laevigatum (Kar. & Kir.) A. DC. [ACCEPTED SPECIES 278910:7VTFC nidx=null]
 + Heterocaryum laevigatum (Kar. & Kir.) A. DC. [SYNONYM SPECIES 281951:3L7ZR nidx=null parent=BW5Q2]
Heteropternis quineensis
 - Heteropternis quineensis [SYNONYM SPECIES 278910:8PZHR nidx=null parent=3LCTY]
 + Heteropternis quineensis Blanchard, 1853 [SYNONYM SPECIES 281951:BVNYM nidx=null parent=3LCTY]
Heterotremata
 - Heterotremata Guinot, 1977 [ACCEPTED OTHER 278910:8PS7R nidx=null]
 + Heterotremata Guinot, 1977 [ACCEPTED SUBSECTION_ZOOLOGY 281951:BVFJT nidx=null]
Hiatea
 - Hiatea Menzies [SYNONYM UNRANKED 278910:BBZJF nidx=null parent=B8XN7]
 + Hiatea Menzies ex Hook. [SYNONYM UNRANKED 281951:BW2QN 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 281951:BVWNQ 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 281951:BVZST 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 281951:BVZSV nidx=null parent=7K6ZK]
Homalia gracilis
 - Homalia gracilis James [SYNONYM SPECIES 278910:9S7VL nidx=null parent=9KWNL]
 + Homalia gracilis James ex Peck [SYNONYM SPECIES 281951:BVVDK nidx=null parent=9KWNL]
Homalothecium bonplandii
 - Homalothecium bonplandii A. Jaeger [SYNONYM SPECIES 278910:9TJNQ nidx=null parent=4C3MM]
 + Homalothecium bonplandii Spruce [SYNONYM SPECIES 281951:BVVDL nidx=null parent=4C3MM]
Homolidea
 - Homolidea De Haan, 1839 [SYNONYM OTHER 278910:BBRYH nidx=null parent=7NHV8]
 + Homolidea De Haan, 1839 [SYNONYM SUBSECTION_ZOOLOGY 281951:BVS5R nidx=null parent=7NHV8]
Homoloida
 - Homoloida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRH5V nidx=null]
 + Homoloida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281951:BDM5P nidx=null]
Humirioideae
 - Humirioideae Winkler [SYNONYM UNRANKED 278910:9WGS5 nidx=null parent=B6W]
 + Humirioideae Arn. [SYNONYM UNRANKED 281951:BW2QV nidx=null parent=B6W]
Hydrichthyidae
 - Hydrichthyidae [PROVISIONALLY_ACCEPTED FAMILY 278910:B85 nidx=null]
 - Hydrichthyidae [SYNONYM FAMILY 278910:BDWQG nidx=null parent=7NK9Q]
 + Hydrichthyidae Stechow, 1922 [SYNONYM FAMILY 281951:BV9C6 nidx=null parent=7NK9Q]
Hydrozetes tamarae
 - Hydrozetes tamarae Toslstikov, 1996 [ACCEPTED SPECIES 278910:6MKG5 nidx=null]
 + Hydrozetes tamarae Tolstikov, 1996 [ACCEPTED SPECIES 281951:BVP5F nidx=null]
Hyleoglomeris modiglianii
 - Hyleoglomeris modiglianii (Silvestri, 1895) [SYNONYM SPECIES 278910:7WPK9 nidx=null parent=FMBX]
 + Hyleoglomeris modiglianii (Silvestri, 1895) [ACCEPTED SPECIES 281951:6MNTW nidx=null]
Hymenozetes mirabilis
 - Hymenozetes mirabilis Balogh, 1964 [ACCEPTED SPECIES 278910:3NLP4 nidx=null]
 + Hymenozetes mirabilis Balogh, 1963 [ACCEPTED SPECIES 281951:BVP5T nidx=null]
Hypnum exiguum
 - Hypnum exiguum Blandow [AMBIGUOUS_SYNONYM SPECIES 278910:9S9Z9 nidx=null parent=4STMS]
 + Hypnum exiguum Blandow ex Schultz [AMBIGUOUS_SYNONYM SPECIES 281951:BVVGD 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 281951:BVVGH 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 281951:BVVGK 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 281951:BVVGN nidx=null parent=4ZWC4]
Iassus (Iassus) variatus
 - Iassus (Iassus) variatus (Fallén, 1806) [SYNONYM SPECIES 278910:9KCPY nidx=null parent=8J86X]
 + Iassus (Iassus) variatus (Fallén, 1806) [SYNONYM SPECIES 281951:BVP6P nidx=null parent=8J86X]
Illinoia (Illinoia) azaleae
 - Illinoia (Illinoia) azaleae (Mason, 1925) [ACCEPTED SPECIES 278910:3PGS6 nidx=null]
 + Illinoia (Illinoia) azaleae (Mason, 1925) [ACCEPTED SPECIES 281951:BVCDP nidx=null]
Illinoia (Illinoia) richardsi
 - Illinoia (Illinoia) richardsi (MacGillivray, 1958) [ACCEPTED SPECIES 278910:3PGSS nidx=null]
 + Illinoia (Illinoia) richardsi (MacGillivray, 1958) [ACCEPTED SPECIES 281951:BVNY7 nidx=null]
Indopacifica taiyo
 - Indopacifica taiyo Tobias et al., 2021 [ACCEPTED SPECIES 278910:8TBJB nidx=null]
 + Indopacifica taiyo Pfingstl, Shimano & Hiruta, 2021 [ACCEPTED SPECIES 281951:BVP9D nidx=null]
Indopacifica tyida
 - Indopacifica tyida Tobias et al., 2021 [ACCEPTED SPECIES 278910:8T9YR nidx=null]
 + Indopacifica tyida Pfingstl, Shimano & Hiruta, 2021 [ACCEPTED SPECIES 281951:BVP9F nidx=null]
Indopecten misolensis
 - Indopecten misolensis (Wanner, 1910) [ACCEPTED SPECIES 278910:B6FCV nidx=null]
 + Indopecten misolensis (Jaworski, 1915) [ACCEPTED SPECIES 281951:BVVKR nidx=null]
Inulaceae
 - Inulaceae Bessey [SYNONYM UNRANKED 278910:624VL nidx=null parent=622TP]
 + Inulaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8K4 nidx=null parent=622TP]
Inversotyphlus lobifer
 - Inversotyphlus lobifer (Attems, 1951) [SYNONYM SPECIES 278910:8MZZW nidx=null parent=8N5J9]
 + Inversotyphlus lobifer (Attems, 1951) [ACCEPTED SPECIES 281951:3PTHQ 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 281951:3PYSG nidx=null parent=768RV]
Ischnacrida convergens
 - Ischnacrida convergens [SYNONYM SPECIES 278910:8PCGL nidx=null parent=3THC2]
 + Ischnacrida convergens (Walker, 1870) [SYNONYM SPECIES 281951:3Q49C nidx=null parent=7JYM2]
Isophya camptoxipha
 - Isophya camptoxipha [SYNONYM SPECIES 278910:8PCHV nidx=null parent=3QB5X]
 + Isophya camptoxipha Fieber, 1853 [SYNONYM SPECIES 281951:BVNZ7 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 281951:BVVLN nidx=null parent=39C2K]
Jaera marina
 - Jaera marina (Fabricius, 1780) [SYNONYM SPECIES 278910:3QK66 nidx=null parent=6NDCM]
 + Jaera marina (Linnaeus, 1758) [SYNONYM SPECIES 281951:BVPCH nidx=null parent=6NDCM]
Jasomenia sansibarica
 - Jasomenia sansibarica [SYNONYM SPECIES 278910:8PZN2 nidx=null parent=3QMV2]
 + Jasomenia sansibarica Karsch, 1896 [SYNONYM SPECIES 281951:BVPCV nidx=null parent=3QMV2]
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 281951:BG3NP nidx=null parent=9KG8J]
Kalanchoeae
 - Kalanchoeae (A.Berger) 't Hart [SYNONYM UNRANKED 278910:KWX nidx=null parent=9VDV3]
 + Kalanchoeae Small [SYNONYM UNRANKED 281951:BVBFR nidx=null parent=JRT]
Korobkovitrigonia godini
 - Korobkovitrigonia godini Burkova, 1965 [ACCEPTED SPECIES 278910:7RSHR nidx=null]
 + Korobkovitrigonia godini Burkova, 1963 [ACCEPTED SPECIES 281951:BVPK5 nidx=null]
Korobkovitrigonia romanovskaja
 - Korobkovitrigonia romanovskaja Burkova, 1965 [ACCEPTED SPECIES 278910:7RSHV nidx=null]
 + Korobkovitrigonia romanovskaja Burkova, 1963 [ACCEPTED SPECIES 281951:BVPK6 nidx=null]
Kotorapecten kagamianus permirus
 - Kotorapecten kagamianus permirus (Masuda, 1958) [ACCEPTED SUBSPECIES 278910:8RWRP nidx=null]
 + Kotorapecten kagamianus permirus (Yokoyama, 1926) [SYNONYM SUBSPECIES 281951:BVZT7 nidx=null parent=B6DBY]
Kulievia paradecipiens
 - Kulievia paradecipiens (Kulijev, 1962) [ACCEPTED SPECIES 278910:3RFHV nidx=null]
 + Kulievia paradecipiens (Kulijev, 1967) [ACCEPTED SPECIES 281951:BVPJY nidx=null]
Laoma poecilosticta
 - Laoma poecilosticta (L. Pfeiffer, 1853) [SYNONYM SPECIES 278910:3S86C nidx=null parent=6VBZD]
 + Laoma poecilosticta (Reeve, 1852) [SYNONYM SPECIES 281951:BVPQ5 nidx=null parent=7SPMJ]
Latreillidea
 - Latreillidea Stimpson, 1858 [SYNONYM OTHER 278910:BSQ9K nidx=null parent=7NJ7Q]
 + Latreillidea Stimpson, 1858 [SYNONYM SUBSECTION_ZOOLOGY 281951:BBRYJ nidx=null parent=7NJ7Q]
Lecythocaris
 - Lecythocaris Von Meyer, 1858 [ACCEPTED GENUS 278910:9WWS8 nidx=null]
 + Lecythocaris von Meyer, 1860 [ACCEPTED GENUS 281951:BVRPX nidx=null]
Lembos processifer
 - Lembos processifer J.L. Barnard, 1965 [SYNONYM SPECIES 278910:3T4CQ nidx=null parent=LGXN]
 + Lembos processifer Pirlot, 1938 [SYNONYM SPECIES 281951:BVF45 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 281951:BVPT2 nidx=null parent=LGWV]
Lepidopilum chloroneuron
 - Lepidopilum chloroneuron (Taylor) Lorentz [ACCEPTED SPECIES 278910:3TCLC nidx=null]
 + Lepidopilum chloroneuron (Taylor) Spruce [ACCEPTED SPECIES 281951:BVPTC nidx=null]
Lepidopilum erectiusculum
 - Lepidopilum erectiusculum (Taylor) Mitt. [ACCEPTED SPECIES 278910:3TCLK nidx=null]
 + Lepidopilum erectiusculum (Taylor) Spruce [ACCEPTED SPECIES 281951:BVPTD nidx=null]
Lepidopilum flexifolium
 - Lepidopilum flexifolium Mitt. [SYNONYM SPECIES 278910:9SFZC nidx=null parent=3TCMG]
 + Lepidopilum flexifolium (Müll. Hal.) Spruce [SYNONYM SPECIES 281951:BVVW5 nidx=null parent=3TCMG]
Lepidopilum grevilleanum
 - Lepidopilum grevilleanum Mitt. [SYNONYM SPECIES 278910:3TCLT nidx=null parent=9KF2Q]
 + Lepidopilum grevilleanum Spruce [SYNONYM SPECIES 281951:BVP7X 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 281951:BVVW6 nidx=null parent=3Q8HJ]
Lepidopilum patrisiae
 - Lepidopilum patrisiae (Brid.) Mitt. [SYNONYM SPECIES 278910:9SG2Z nidx=null parent=9K2T6]
 + Lepidopilum patrisiae (Brid.) Spruce [SYNONYM SPECIES 281951:BVVW7 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 281951:BVVW8 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 281951:BVFMF 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 281951:BVFMG 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 281951:BW2FS nidx=null parent=9LQQH]
Lepyrodon tomentosus
 - Lepyrodon tomentosus (Hook.) Mitt. [ACCEPTED SPECIES 278910:6PPR4 nidx=null]
 + Lepyrodon tomentosus (Hook.) Spruce [ACCEPTED SPECIES 281951:BVP9C nidx=null]
Lernaeenicinae
 - Lernaeenicinae Wilson C.B., 1917 [ACCEPTED GENUS 278910:7ZFS5 nidx=null]
 + Lernaeenicinae Wilson C.B., 1917 [SYNONYM SUBFAMILY 281951:BVCSY nidx=null parent=7NKDC]
Leuenbergerioideae
 - Leuenbergerioideae [ACCEPTED SUBFAMILY 278910:8SFHW nidx=null]
 + Leuenbergerioideae Mayta & Molinari [ACCEPTED SUBFAMILY 281951:BVBCT nidx=null]
Leuzea
 - Leuzea DC. [ACCEPTED GENUS 278910:5TC3J nidx=null]
 + Leuzea DC. [SYNONYM UNRANKED 281951:BV9R5 nidx=null parent=BV8X2]
Liacarus gammatus gammatus
 - Liacarus gammatus gammatus Choi, 1994 [ACCEPTED SUBSPECIES 278910:5JCJY nidx=null]
 + Liacarus gammatus gammatus Aoki, 1967 [ACCEPTED SUBSPECIES 281951:BVZVR nidx=null]
Limonium proliferum
 - Limonium proliferum [ACCEPTED SPECIES 278910:72DSK nidx=null]
 + Limonium proliferum (d'Urv.) Erben & Brullo [ACCEPTED SPECIES 281951:BVPBJ 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 281951:BGZ54 nidx=null parent=9KG8J]
Linarieae
 - Linarieae (Rouy) Betsche [SYNONYM UNRANKED 278910:7NM7R nidx=null parent=7NLMH]
 + Linarieae Parl. [SYNONYM UNRANKED 281951:BVBFT nidx=null parent=BVBBB]
Lindigia aciculata
 - Lindigia aciculata (Taylor) Hampe [SYNONYM SPECIES 278910:9LRG6 nidx=null parent=64Z49]
 + Lindigia aciculata (Taylor) Spruce [SYNONYM SPECIES 281951:BVW2F nidx=null parent=64Z49]
Lindsaeaceae
 - Lindsaeaceae C. Presl [ACCEPTED FAMILY 278910:B8WVZ nidx=null]
 + Lindsaeaceae M. R. Schomb. [ACCEPTED FAMILY 281951:BV8KC nidx=null]
Lineus corrugatus
 - Lineus corrugatus sensu Stephenson et al., 1937 sensu Stephenson & al. , 1937 [AMBIGUOUS_SYNONYM SPECIES 278910:BSCSH nidx=null parent=3V2R3]
 + Lineus corrugatus [AMBIGUOUS_SYNONYM SPECIES 281951:BSCSJ nidx=null parent=4DJBG]
 + Lineus corrugatus sensu Stephenson et al., 1937 [AMBIGUOUS_SYNONYM SPECIES 281951:BVF4R nidx=null parent=3V2R3]
Linnaeoideae
 - Linnaeoideae (Dumort.) P. F. Stevens [ACCEPTED SUBFAMILY 278910:JTR nidx=null]
 + Linnaeoideae Raf. [ACCEPTED SUBFAMILY 281951:BVBCW nidx=null]
Liopsalis klipsteini
 - Liopsalis klipsteini von Meyer, 1862 [ACCEPTED SPECIES 278910:BTRF4 nidx=null]
 + Liopsalis klipsteini (von Meyer, 1842) [ACCEPTED SPECIES 281951:BW3RQ nidx=null]
Lipotactes (Prolipotactes) hamatus
 - Lipotactes (Prolipotactes) hamatus (Karny, 1931) [ACCEPTED SPECIES 278910:8QJB6 nidx=null]
 + Lipotactes (Prolipotactes) hamatus (Karny, 1931) [ACCEPTED SPECIES 281951:BVPC8 nidx=null]
Locusta migratoroides
 - Locusta migratoroides [SYNONYM SPECIES 278910:8PZTY nidx=null parent=7JZG5]
 + Locusta migratoroides Reiche & Fairmaire, 1849 [SYNONYM SPECIES 281951:BVQ7K nidx=null parent=7JZG5]
Lomoporotrichum
 - Lomoporotrichum Müll. Hal. [SYNONYM GENUS 278910:9TV88 nidx=null parent=9KVMM]
 + Lomoporotrichum Müll. Hal. ex Kindb. [SYNONYM GENUS 281951:BVRQC 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 281951:BVW33 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 281951:BW2FX 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 281951:BVW44 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 281951:BVW5X nidx=null parent=69H9P]
Louisianinidae
 - Louisianinidae [ACCEPTED FAMILY 278910:C7Q nidx=null]
 + Louisianinidae Denne & Sen Gupta, 1996 [ACCEPTED FAMILY 281951:BV8KD nidx=null]
Lycopodioideae
 - Lycopodioideae W. H. Wagner & Beitel ex B. Øllg. [ACCEPTED SUBFAMILY 278910:B8X3W nidx=null]
 + Lycopodioideae Eaton [ACCEPTED SUBFAMILY 281951:BVBCX nidx=null]
Lycopsis glomerata
 - Lycopsis glomerata [SYNONYM SPECIES 278910:3WN3J nidx=null parent=6MDB6]
 + Lycopsis glomerata d'Urv. [SYNONYM SPECIES 281951:BVQ9C 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 281951:BVQB7 nidx=null parent=6PZ8L]
Macromitrium oblongum
 - Macromitrium oblongum (Taylor) Mitt. [ACCEPTED SPECIES 278910:3X6H5 nidx=null]
 + Macromitrium oblongum (Taylor) Spruce [ACCEPTED SPECIES 281951:BVQCH nidx=null]
Macrosiphoniella (Asterobium) erigeronis
 - Macrosiphoniella (Asterobium) erigeronis Nevsky, 1928 [ACCEPTED SPECIES 278910:3X9N3 nidx=null]
 + Macrosiphoniella (Asterobium) erigeronis Nevsky, 1928 [ACCEPTED SPECIES 281951:BVQCZ nidx=null]
Macrosiphoniella (Macrosiphoniella) atrata
 - Macrosiphoniella (Macrosiphoniella) atrata [ACCEPTED SPECIES 278910:BT5FM nidx=null]
 + Macrosiphoniella (Macrosiphoniella) atrata [ACCEPTED SPECIES 281951:B79VF nidx=null]
Macrosiphoniella (Macrosiphoniella) millefolii
 - Macrosiphoniella (Macrosiphoniella) millefolii (De Geer, 1773) [ACCEPTED SPECIES 278910:BT4DR nidx=null]
 + Macrosiphoniella (Macrosiphoniella) millefolii (De Geer, 1773) [ACCEPTED SPECIES 281951:3X9QH nidx=null]
Macrosiphoniella (Macrosiphoniella) tadshikana
 - Macrosiphoniella (Macrosiphoniella) tadshikana Narzikulov, 1958 [ACCEPTED SPECIES 278910:BT5G4 nidx=null]
 + Macrosiphoniella (Macrosiphoniella) tadshikana Narzikulov, 1958 [ACCEPTED SPECIES 281951:8PDF2 nidx=null]
Macrosiphum (Macrosiphum) centranthi
 - Macrosiphum (Macrosiphum) centranthi [ACCEPTED SPECIES 278910:BJT49 nidx=null]
 + Macrosiphum (Macrosiphum) centranthi [ACCEPTED SPECIES 281951:BVPJ5 nidx=null]
Macrosiphum (Macrosiphum) funestum
 - Macrosiphum (Macrosiphum) funestum (Macchiati, 1885) [ACCEPTED SPECIES 278910:3X9ZH nidx=null]
 + Macrosiphum (Macrosiphum) funestum (Macchiati, 1885) [ACCEPTED SPECIES 281951:BVPJH nidx=null]
Macrosiphum (Macrosiphum) penfroense
 - Macrosiphum (Macrosiphum) penfroense [ACCEPTED SPECIES 278910:BKFG4 nidx=null]
 + Macrosiphum (Macrosiphum) penfroense [ACCEPTED SPECIES 281951:BVQDN nidx=null]
Macrosiphum (Sitobion) rosae
 - Macrosiphum (Sitobion) rosae (Linnaeus, 1758) [SYNONYM SPECIES 278910:8QYXV nidx=null parent=7HD4Q]
 + Macrosiphum (Sitobion) rosae (Linnaeus, 1758) [SYNONYM SPECIES 281951:BVCJX nidx=null parent=7HD4Q]
Macrosteles (Macrosteles) curvata
 - Macrosteles (Macrosteles) curvata Beirne, 1952 [SYNONYM SPECIES 278910:9KG7L nidx=null parent=8JW86]
 + Macrosteles (Macrosteles) curvata Beirne, 1952 [SYNONYM SPECIES 281951:8JW85 nidx=null parent=8JW86]
Macrotoma (Navosomopsis) gestroi
 - Macrotoma (Navosomopsis) gestroi Lameere, 1903 [SYNONYM SPECIES 278910:BRVYN nidx=null parent=G6BN]
 + Macrotoma (Navosomopsis) gestroi Lameere, 1903 [SYNONYM SPECIES 281951:BVQFJ nidx=null parent=G6BN]
Madrepora lavandulina
 - Madrepora lavandulina Michelin, 1840 [SYNONYM SPECIES 278910:3XF8N nidx=null parent=9P2W]
 + Madrepora lavandulina Michelin, 1842 [SYNONYM SPECIES 281951:BVQKH nidx=null parent=BVG29]
Masonaphis (Ericobium) azaleae
 - Masonaphis (Ericobium) azaleae (Mason, 1925) [AMBIGUOUS_SYNONYM SPECIES 278910:BT5SC nidx=null parent=3PGS6]
 + Masonaphis (Ericobium) azaleae (Mason, 1925) [AMBIGUOUS_SYNONYM SPECIES 281951:BVQPT nidx=null parent=BVCDP]
 + Masonaphis (Ericobium) azaleae (Mason, 1925) [AMBIGUOUS_SYNONYM SPECIES 281951:BVQPV nidx=null parent=7H9P9]
Meckelia aurantiaca
 - Meckelia aurantiaca [SYNONYM SPECIES 278910:3YKKG nidx=null parent=6PTN3]
 + Meckelia aurantiaca Grube, 1855 [SYNONYM SPECIES 281951:BVQLK nidx=null parent=6PTN3]
Melampsalta hermansburgensis
 - Melampsalta hermansburgensis Distant, 1907 [SYNONYM SPECIES 278910:B4CBM nidx=null parent=6GHHK]
 + Melampsalta hermansburgensis Distant, 1907 [SYNONYM SPECIES 281951:BPJB8 nidx=null parent=6GHHK]
Melanoxantherium flocculossum
 - Melanoxantherium flocculossum (Weed, 1891) [SYNONYM SPECIES 278910:BT62F nidx=null parent=7HT7C]
 + Melanoxantherium flocculossum (Weed, 1891) [SYNONYM SPECIES 281951:BVQXW nidx=null parent=7HT7C]
Meteorium leucotrichum
 - Meteorium leucotrichum (Taylor) Mitt. [SYNONYM SPECIES 278910:9SKHW nidx=null parent=6ZG6P]
 + Meteorium leucotrichum (Taylor) Spruce [SYNONYM SPECIES 281951:BVWBH nidx=null parent=6ZG6P]
Meteorium nigricans
 - Meteorium nigricans (Hook.) Mitt. [SYNONYM SPECIES 278910:9SKJH nidx=null parent=6ZG4S]
 + Meteorium nigricans (Hook.) Spruce [SYNONYM SPECIES 281951:BVWBJ 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 281951:BVWBK 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 281951:BVWBL 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 281951:BVWBM nidx=null parent=4HVKD]
Metopolophium (Metopolophium)
 - Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 278910:BMHND nidx=null]
 + Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 281951:BV8TL nidx=null]
Metrioptera (Bicolorana) fedtschenkoi
 - Metrioptera (Bicolorana) fedtschenkoi (Saussure, 1874) [SYNONYM SPECIES 278910:BT683 nidx=null parent=BTYND]
 + Metrioptera (Bicolorana) fedtschenkoi (Saussure, 1874) [SYNONYM SPECIES 281951:BVR33 nidx=null parent=BTYND]
Metrioptera (Roeseliana) azami
 - Metrioptera (Roeseliana) azami (Finot, 1892) [SYNONYM SPECIES 278910:BT5YQ nidx=null parent=5KXTX]
 + Metrioptera (Roeseliana) azami (Finot, 1892) [SYNONYM SPECIES 281951:BVQW2 nidx=null parent=5KXTX]
Metrioptera pulchra
 - Metrioptera pulchra [SYNONYM SPECIES 278910:BT686 nidx=null parent=4T9L2]
 + Metrioptera pulchra (Werner, 1901) [SYNONYM SPECIES 281951:8Q25C nidx=null parent=4T9L2]
Metrioptera roeseli
 - Metrioptera roeseli [SYNONYM SPECIES 278910:8P9DS nidx=null parent=4T9L7]
 + Metrioptera roeseli (Hagenbach, 1822) [SYNONYM SPECIES 281951:BVQWF nidx=null parent=4T9L7]
Microtegeus hauseri
 - Microtegeus hauseri Mahunka, 1988 [ACCEPTED SPECIES 278910:437TQ nidx=null]
 + Microtegeus hauseri Mahunka, 1998 [ACCEPTED SPECIES 281951:BVQYD nidx=null]
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 281951:BV9MD nidx=null parent=43CZ6]
Mimosa decipiens
 - Mimosa decipiens sens. K.D.Koenig [MISAPPLIED SPECIES 278910:9KGTV nidx=null parent=9JPY4]
 + Mimosa decipiens sens. K.D.Koenig [MISAPPLIED SPECIES 281951:BVD5K nidx=null parent=9JPY4]
Mirhipipteryx pronotumpunctata
 - Mirhipipteryx pronotumpunctata [SYNONYM SPECIES 278910:8Q276 nidx=null parent=43LYQ]
 + Mirhipipteryx pronotumpunctata Günther, 1969 [SYNONYM SPECIES 281951:BVQZN 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 281951:BVF8D nidx=null parent=3Q379]
Mnium affine
 - Mnium affine Blandow ex Funck [SYNONYM SPECIES 278910:9LWSK nidx=null parent=4JGLR]
 + Mnium affine Blandow [SYNONYM SPECIES 281951:BVWDC 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 281951:BW2GD 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 281951:BVWDD nidx=null parent=9STM9]
Mnium seligeri
 - Mnium seligeri Jur. [SYNONYM SPECIES 278910:9MW89 nidx=null parent=4JGLZ]
 + Mnium seligeri Jur. ex Warnst. [SYNONYM SPECIES 281951:BVWDF nidx=null parent=9VTJD]
Modiola (Brachydontes)
 - Modiola (Brachydontes) Gray, 1847 [SYNONYM SUBGENUS 278910:BG8KV nidx=null parent=7NR2D]
 + Modiola (Brachydontes) [SYNONYM SUBGENUS 281951:BVRG2 nidx=null parent=7NR2D]
Mongolotettix anomopoterus
 - Mongolotettix anomopoterus [SYNONYM SPECIES 278910:8Q28M nidx=null parent=443RM]
 + Mongolotettix anomopoterus Caudell, 1921 [SYNONYM SPECIES 281951:BVRB9 nidx=null parent=443RM]
Mongolotettix shanxiensis
 - Mongolotettix shanxiensis [SYNONYM SPECIES 278910:8PFBN nidx=null parent=443RW]
 + Mongolotettix shanxiensis Shi, Liu & Li, 2016 [SYNONYM SPECIES 281951:BVQ2M nidx=null parent=443RW]
Montia linearifolia
 - Montia linearifolia [SYNONYM SPECIES 278910:44B3B nidx=null parent=7KD43]
 + Montia linearifolia d'Urv. [SYNONYM SPECIES 281951:BVRCH nidx=null parent=7KD43]
Murex (Murex) brevispina macgillivrayi
 - Murex (Murex) brevispina macgillivrayi Dohrn, 1862 [SYNONYM SUBSPECIES 278910:5JRY7 nidx=null parent=7TY5T]
 + Murex (Murex) brevispina macgillivrayi Dohrn, 1862 [SYNONYM SUBSPECIES 281951:BVD8T nidx=null parent=BNPHX]
Musculium (Paramusculium)
 - Musculium (Paramusculium) Alimov & Starobogatov, 1986 [SYNONYM SUBGENUS 278910:BGWX2 nidx=null parent=7P9CS]
 + Musculium (Paramusculium) Alimov & Starobogatov, 1968 [SYNONYM SUBGENUS 281951:BVS4W nidx=null parent=7PH6H]
Myzus (Myzus) ornatus
 - Myzus (Myzus) ornatus [ACCEPTED SPECIES 278910:45J2X nidx=null]
 + Myzus (Myzus) ornatus [ACCEPTED SPECIES 281951:BVCLY nidx=null]
Neallogaster lunifera
 - Neallogaster lunifera (Seyls, 1878) [ACCEPTED SPECIES 278910:BV654 nidx=null]
 + Neallogaster lunifera (Selys, 1878) [ACCEPTED SPECIES 281951:BW5DK nidx=null]
Neanias falciger
 - Neanias falciger [SYNONYM SPECIES 278910:8Q2C4 nidx=null parent=3GCL7]
 + Neanias falciger (Sjöstedt, 1910) [SYNONYM SPECIES 281951:BVRMF 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 281951:BVWGF nidx=null parent=Q72K]
Neckera subintegra
 - Neckera subintegra Lindb. [SYNONYM SPECIES 278910:9SMLK nidx=null parent=4CKW2]
 + Neckera subintegra Lindb. ex Hampe [SYNONYM SPECIES 281951:BVWGJ nidx=null parent=4CKW2]
Neocypridella
 - Neocypridella Vávra, 1895 [ACCEPTED GENUS 278910:85GS9 nidx=null]
 + Neocypridella Hartman & Puri, 1974 [ACCEPTED GENUS 281951:BVD4Q nidx=null]
Neoparvicapsula
 - Neoparvicapsula [ACCEPTED GENUS 278910:627L nidx=null]
 + Neoparvicapsula Gayevskaya, Kovaljova & Schulman, 1982 [ACCEPTED GENUS 281951:BVD5F nidx=null]
Nestellorella parva
 - Nestellorella parva (Lipina, 1949) [ACCEPTED SPECIES 278910:82ZR2 nidx=null]
 + Nestellorella parva (Lipina, 1949) [PROVISIONALLY_ACCEPTED SPECIES 281951:8FWVC nidx=null]
Neuquenaphis (Spicaphis) essigi
 - Neuquenaphis (Spicaphis) essigi Hille Ris Lambers, 1968 [ACCEPTED SPECIES 278910:BT734 nidx=null]
 + Neuquenaphis (Spicaphis) essigi Hille Ris Lambers, 1968 [ACCEPTED SPECIES 281951:479VG nidx=null]
Nodosariina
 - Nodosariina Catkins, 1926 [ACCEPTED SUBORDER 278910:7ZSVK nidx=null]
 + Nodosariina Calkins, 1926 [ACCEPTED SUBORDER 281951:BVB57 nidx=null]
Octoblepharum pulvinatum
 - Octoblepharum pulvinatum (Dozy & Molk.) Mitt. [ACCEPTED SPECIES 278910:74FLP nidx=null]
 + Octoblepharum pulvinatum (Dozy & Molk.) Spruce [ACCEPTED SPECIES 281951:BVQKY nidx=null]
Octolepidoideae
 - Octolepidoideae Gilg [SYNONYM UNRANKED 278910:JZP nidx=null parent=628J9]
 + Octolepidoideae Engl. & Gilg [SYNONYM UNRANKED 281951:BVBD3 nidx=null parent=628J9]
Ocyropsidae
 - Ocyropsidae Harbison & Madin, 1982 [ACCEPTED FAMILY 278910:7NK49 nidx=null]
 + Ocyropsidae Krumbach, 1925 [ACCEPTED FAMILY 281951:BV8F8 nidx=null]
Odynerus tectus
 - Odynerus tectus (Fabricius, 1781) : Giordani Soika, 1940 [AMBIGUOUS_SYNONYM SPECIES 278910:6SH2N nidx=null parent=5J7CM]
 + Odynerus tectus (Fabricius, 1781) [AMBIGUOUS_SYNONYM SPECIES 281951:BVL4L nidx=null parent=6NLML]
 + Odynerus tectus (Fabricius, 1781) : Giordani Soika, 1940 [AMBIGUOUS_SYNONYM SPECIES 281951:BVL4M nidx=null parent=5J7CM]
Oecanthus aqueus
 - Oecanthus aqueus [SYNONYM SPECIES 278910:8PG25 nidx=null parent=5JYMJ]
 + Oecanthus aqueus (Fabricius, 1798) [SYNONYM SPECIES 281951:6SGTB nidx=null parent=5JYMJ]
Oecanthus rufescence
 - Oecanthus rufescence [SYNONYM SPECIES 278910:8Q2JD nidx=null parent=74GT2]
 + Oecanthus rufescence Serville, 1838 [SYNONYM SPECIES 281951:BVS3S nidx=null parent=74GT2]
Oedaleus inclytus
 - Oedaleus inclytus [SYNONYM SPECIES 278910:8PG2F nidx=null parent=48VD5]
 + Oedaleus inclytus (Walker, 1870) [SYNONYM SPECIES 281951:48VCF nidx=null parent=48VD5]
Oedaleus madacassus
 - Oedaleus madacassus [SYNONYM SPECIES 278910:8Q2JG nidx=null parent=48VD5]
 + Oedaleus madacassus Saussure, 1884 [SYNONYM SPECIES 281951:BVS3T nidx=null parent=48VD5]
Oedaleus mlocosiewiczi
 - Oedaleus mlocosiewiczi [SYNONYM SPECIES 278910:8Q2JK nidx=null parent=48VCZ]
 + Oedaleus mlocosiewiczi Bolívar, 1884 [SYNONYM SPECIES 281951:BVS3V nidx=null parent=48VCZ]
Oedaleus mlokosiewitchi
 - Oedaleus mlokosiewitchi [SYNONYM SPECIES 278910:8Q2JL nidx=null parent=48VCZ]
 + Oedaleus mlokosiewitchi Bolívar, 1884 [SYNONYM SPECIES 281951:BVRXR nidx=null parent=48VCZ]
Oleandra nodosa var. magalhaesii
 - Oleandra nodosa var. magalhaesii Christ [AMBIGUOUS_SYNONYM VARIETY 278910:BD792 nidx=null parent=BC3ZF]
 + Oleandra nodosa var. magalhaesii Christ [SYNONYM VARIETY 281951:BD78Z nidx=null parent=BC3ZF]
Oleandroideae
 - Oleandroideae (Ching ex Pic.Serm.) Crabbe [SYNONYM UNRANKED 278910:B8X42 nidx=null parent=B8WX7]
 + Oleandroideae Crabbe, Jermy & Mickel [SYNONYM UNRANKED 281951:BV8QL nidx=null parent=B8WX7]
Olynthoscelis frivaldskyi
 - Olynthoscelis frivaldskyi [SYNONYM SPECIES 278910:8Q2KB nidx=null parent=4GLST]
 + Olynthoscelis frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281951:BVS56 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 281951:8V8V8 nidx=null parent=8V8XK]
Oncideres callydryas
 - Oncideres callydryas [SYNONYM SPECIES 278910:BKJLY nidx=null parent=6QLRW]
 + Oncideres callydryas [SYNONYM SPECIES 281951:BVS2V nidx=null parent=6QLRW]
Ophiura bracteata
 - Ophiura bracteata Johnston, 1935 [SYNONYM SPECIES 278910:6SPFR nidx=null parent=74PFS]
 + Ophiura bracteata Johnston, 1835 [SYNONYM SPECIES 281951:BVG6N nidx=null parent=74PFS]
Opistominae
 - Opistominae Luther, 1963 [ACCEPTED SUBFAMILY 278910:7NM4V nidx=null]
 + Opistominae Bresslau, 1933 [ACCEPTED SUBFAMILY 281951:BVBD5 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 281951:BVS88 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 281951:BVS8F nidx=null]
Oribatella (Oribatella) kashmiriensis
 - Oribatella (Oribatella) kashmiriensis Kardar, 1975 [PROVISIONALLY_ACCEPTED SPECIES 278910:7W67H nidx=null]
 + Oribatella (Oribatella) kashmiriensis Kardar, 1975 [ACCEPTED SPECIES 281951:6STV2 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 281951:6T5FB nidx=null]
Orthostichella
 - Orthostichella (Müll. Hal.) Müll. Hal. [ACCEPTED GENUS 278910:9JLQG nidx=null]
 + Orthostichella (Müll. Hal.) Spruce [ACCEPTED GENUS 281951:BV8VP nidx=null]
Orthotrichum citrinum
 - Orthotrichum citrinum Sull. & Lesq. ex Austin [SYNONYM SPECIES 278910:9SN9Z nidx=null parent=6SXN4]
 + Orthotrichum citrinum Sull. & Lesq. [SYNONYM SPECIES 281951:BVWKG nidx=null parent=6SXN4]
Oticodium
 - Oticodium (Müll. Hal.) Kindb. [ACCEPTED GENUS 278910:9RL5C nidx=null]
 + Oticodium (Müll. Hal.) A. Jaeger [ACCEPTED GENUS 281951:BVRS8 nidx=null]
Otiorhynchus speiseri
 - Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 278910:B7VBZ nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1894 [SYNONYM SPECIES 281951:BVWKS nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 281951:BVWKT nidx=null parent=373HR]
Oxycephalidae
 - Oxycephalidae Dana, 1852 [ACCEPTED FAMILY 278910:7NK8G nidx=null]
 + Oxycephalidae Spence Bate, 1863 [ACCEPTED FAMILY 281951:BV8LJ nidx=null]
Oxyuridae
 - Oxyuridae Cobbold, 1864 [ACCEPTED FAMILY 278910:87C7X nidx=null]
 + Oxyuridae Weinland, 1858 [ACCEPTED FAMILY 281951:BV8FF nidx=null]
Oxyuroidea
 - Oxyuroidea Cobbold, 1864 [ACCEPTED SUPERFAMILY 278910:87BWV nidx=null]
 + Oxyuroidea Weinland, 1858 [ACCEPTED SUPERFAMILY 281951:BV8GT nidx=null]
Pachytylus migratoroides
 - Pachytylus migratoroides [SYNONYM SPECIES 278910:8Q2QP nidx=null parent=7JZG5]
 + Pachytylus migratoroides (Reiche & Fairmaire, 1849) [SYNONYM SPECIES 281951:BVSHS 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 281951:BVWL9 nidx=null parent=BVSX2]
Paoliella (Paoliella) sawa
 - Paoliella (Paoliella) sawa (Eastop, 1955) [ACCEPTED SPECIES 278910:4CJ3G nidx=null]
 + Paoliella (Paoliella) sawa (Eastop, 1955) [ACCEPTED SPECIES 281951:BVSKR nidx=null]
Paradiplatys (Paradiplatys)
 - Paradiplatys (Paradiplatys) Zacher, 1910 [ACCEPTED SUBGENUS 278910:BSN3C nidx=null]
 + Paradiplatys (Paradiplatys) Zacher, 1910 [ACCEPTED SUBGENUS 281951:B6RMR nidx=null]
Parilcirolana setosa
 - Parilcirolana setosa H. Yu & Li, 2001 [SYNONYM SPECIES 278910:7XYDF nidx=null parent=6SGS3]
 + Parilcirolana setosa Yu & Li, 2001 [SYNONYM SPECIES 281951:4DMD7 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 281951:BVZY3 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 281951:BVWPH nidx=null parent=BVWPG]
Pecten escharoides
 - Pecten escharoides Deshayes, 1858 [SYNONYM SPECIES 278910:B6HF6 nidx=null parent=8YJW4]
 + Pecten escharoides Deshayes, 1861 [SYNONYM SPECIES 281951:BVWPS 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 281951:BW2C6 nidx=null parent=BHZ2B]
Pecten misolensis
 - Pecten misolensis Wanner, 1910 [SYNONYM SPECIES 278910:B6HMY nidx=null parent=B6FCV]
 + Pecten misolensis Jaworski, 1915 [SYNONYM SPECIES 281951:BVWPV nidx=null parent=BVVKR]
Pecten optatus
 - Pecten optatus Deshayes, 1858 [SYNONYM SPECIES 278910:B6BL9 nidx=null parent=8YJW4]
 + Pecten optatus Deshayes, 1861 [SYNONYM SPECIES 281951:BVWPW nidx=null parent=8YJW4]
Pellicieraceae
 - Pellicieraceae (Triana & Planch.) L.Beauvis. ex Bullock [SYNONYM UNRANKED 278910:625SV nidx=null parent=H3T]
 + Pellicieraceae Bullock [SYNONYM UNRANKED 281951:BV8FJ 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 281951:BVCS5 nidx=null]
Pemphigus (Forda) riccobonii
 - Pemphigus (Forda) riccobonii [SYNONYM SPECIES 278910:BT8RT nidx=null parent=6JHFQ]
 + Pemphigus (Forda) riccobonii [SYNONYM SPECIES 281951:BVSWC nidx=null parent=6JHFQ]
Pemphigus (Pemphigus) groenlandicus
 - Pemphigus (Pemphigus) groenlandicus [ACCEPTED SPECIES 278910:BFVPQ nidx=null]
 + Pemphigus (Pemphigus) groenlandicus [ACCEPTED SPECIES 281951:BVR5P nidx=null]
Pemphigus (Pemphigus) roumanicus
 - Pemphigus (Pemphigus) roumanicus [ACCEPTED SPECIES 278910:9WVVS nidx=null]
 + Pemphigus (Pemphigus) roumanicus [ACCEPTED SPECIES 281951:BVSWG nidx=null]
Perpolita dalliana
 - Perpolita dalliana (C. T. Simpson, 1889) [ACCEPTED SPECIES 278910:7SNNS nidx=null]
 + Perpolita dalliana (Pilsbry, 1889) [ACCEPTED SPECIES 281951:BVSZ3 nidx=null]
Persoonioideae
 - Persoonioideae L. A. S. Johnson & B. G. Briggs [ACCEPTED SUBFAMILY 278910:K4L nidx=null]
 + Persoonioideae Engl. [ACCEPTED SUBFAMILY 281951:BV8QN nidx=null]
Phaenocora anomalocoela
 - Phaenocora anomalocoela Graff, 1913 [ACCEPTED SPECIES 278910:76VR8 nidx=null]
 + Phaenocora anomalocoela (Haswell, 1905) Graff, 1913 [ACCEPTED SPECIES 281951:BVCSG nidx=null]
Phaenocora cucurbitina
 - Phaenocora cucurbitina Beklemischev, 1919 [ACCEPTED SPECIES 278910:6V7QX nidx=null]
 + Phaenocora cucurbitina Beklemischev, 1918 [ACCEPTED SPECIES 281951:BVT23 nidx=null]
Phaenocora vejdovskyi
 - Phaenocora vejdovskyi (Vejdovsky, 1895) [SYNONYM SPECIES 278910:4FLVG nidx=null parent=76W2W]
 + Phaenocora vejdovskyi Graff, 1913 [SYNONYM SPECIES 281951:BVT24 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 281951:BVT39 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 281951:BVWS3 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 281951:BVT57 nidx=null parent=3DK5G]
Phoenocora
 - Phoenocora Cognetti de Martiis, 1916 [SYNONYM GENUS 278910:BGN3P nidx=null parent=7PR5S]
 + Phoenocora [SYNONYM GENUS 281951:BVRTZ nidx=null parent=7PR5S]
Pholidoptera frivaldsky
 - Pholidoptera frivaldsky [SYNONYM SPECIES 278910:8Q342 nidx=null parent=4GLST]
 + Pholidoptera frivaldsky Herman, 1871 [SYNONYM SPECIES 281951:BVT5N nidx=null parent=4GLST]
Pholidoptera frivaldskyi
 - Pholidoptera frivaldskyi [SYNONYM SPECIES 278910:8Q33Z nidx=null parent=4GLST]
 + Pholidoptera frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281951:BVT3T nidx=null parent=4GLST]
Pholidoptera friwaldskyi
 - Pholidoptera friwaldskyi [SYNONYM SPECIES 278910:8Q343 nidx=null parent=4GLST]
 + Pholidoptera friwaldskyi Herman, 1871 [SYNONYM SPECIES 281951:BVT5P nidx=null parent=4GLST]
Pholidoptera friwaldszkyi
 - Pholidoptera friwaldszkyi [SYNONYM SPECIES 278910:8Q344 nidx=null parent=4GLST]
 + Pholidoptera friwaldszkyi (Herman, 1871) [SYNONYM SPECIES 281951:BVT5Q 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 281951:BVT43 nidx=null parent=4GT3T]
Phyllogonium viscosum
 - Phyllogonium viscosum (P. Beauv.) Mitt. [ACCEPTED SPECIES 278910:4H7HQ nidx=null]
 + Phyllogonium viscosum (P. Beauv.) Spruce [ACCEPTED SPECIES 281951:BVRFP nidx=null]
Phymateus (Phymateus) morbillosus
 - Phymateus (Phymateus) morbillosus (Linnaeus, 1758) [ACCEPTED SPECIES 278910:4HDS2 nidx=null]
 + Phymateus (Phymateus) morbillosus (Linnaeus, 1758) [ACCEPTED SPECIES 281951:BVRGF nidx=null]
Phytolaccoideae
 - Phytolaccoideae R. Br. [ACCEPTED SUBFAMILY 278910:K5P nidx=null]
 + Phytolaccoideae Arn. [ACCEPTED SUBFAMILY 281951:BVBD9 nidx=null]
Pilotrichella
 - Pilotrichella (Müll. Hal.) Besch. [ACCEPTED GENUS 278910:9JM8M nidx=null]
 + Pilotrichella (Müll. Hal.) Lorentz [ACCEPTED GENUS 281951:BV8W9 nidx=null]
Pisidium (Pseudeupera)
 - Pisidium (Pseudeupera) Germain, 1909 [SYNONYM SUBGENUS 278910:BDXZM nidx=null parent=7PCNC]
 + Pisidium (Pseudeupera) Germain, 1913 [SYNONYM SUBGENUS 281951: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 281951:BW4V4 nidx=null parent=8RQMM]
Plagiothecium elegans
 - Plagiothecium elegans (Brid.) Schimp. [SYNONYM SPECIES 278910:9MZ8D nidx=null parent=4PCYJ]
 + Plagiothecium elegans (Brid.) Austin [SYNONYM SPECIES 281951:BVWTP nidx=null parent=4PCYJ]
Plagiothecium novogranatense
 - Plagiothecium novogranatense (Hampe) Mitt. [ACCEPTED SPECIES 278910:4JHJM nidx=null]
 + Plagiothecium novogranatense (Hampe) Spruce [ACCEPTED SPECIES 281951:BVRMT 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 281951:BW23C nidx=null parent=9LN29]
Plagiothecium tenerum
 - Plagiothecium tenerum (Sw.) Kindb. [SYNONYM SPECIES 278910:9SR2K nidx=null parent=3QBM8]
 + Plagiothecium tenerum (Sw.) Spruce [SYNONYM SPECIES 281951:BVWTQ 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 281951:BVTFY nidx=null parent=BW3W2]
Platycaryeae
 - Platycaryeae Oerst. [SYNONYM UNRANKED 278910:L5Q nidx=null parent=K67]
 + Platycaryeae Nakai [SYNONYM UNRANKED 281951:BVBFX nidx=null parent=K67]
Platycleis roeseli
 - Platycleis roeseli [SYNONYM SPECIES 278910:8PHQ8 nidx=null parent=4T9L7]
 + Platycleis roeseli (Hagenbach, 1822) [SYNONYM SPECIES 281951:BVTGV nidx=null parent=4T9L7]
Platygaster ferruginea
 - Platygaster ferruginea [SYNONYM SPECIES 278910:BT9NZ nidx=null parent=8P7YX]
 + Platygaster ferruginea [SYNONYM SPECIES 281951:BVTK5 nidx=null parent=8P7YX]
Pleuroprocta
 - Pleuroprocta [SYNONYM OTHER 278910:BGNK5 nidx=null parent=7NGMQ]
 + Pleuroprocta [SYNONYM SECTION_ZOOLOGY 281951:BSBZW nidx=null parent=7NGMQ]
Pleustomesus
 - Pleustomesus Guryanova, 1972 [ACCEPTED GENUS 278910:7PT56 nidx=null]
 + Pleustomesus Gurjanova, 1972 [ACCEPTED GENUS 281951:BVDJJ 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 281951:BW29H 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 281951:BW29J nidx=null parent=4KFWV]
Pneumonoeces capyristes
 - Pneumonoeces capyristes Kelin, 1905 [SYNONYM SPECIES 278910:B283X nidx=null parent=B3D3X]
 + Pneumonoeces capyristes Klein, 1905 [SYNONYM SPECIES 281951:BVWVV nidx=null parent=B3D3X]
Pneumonoeces sibiricus
 - Pneumonoeces sibiricus Isaichikov, 1927 [SYNONYM SPECIES 278910:B2QYY nidx=null parent=9Z89R]
 + Pneumonoeces sibiricus Issaitschikov, 1927 [SYNONYM SPECIES 281951:BVWVW nidx=null parent=BVV8Y]
Podotremata
 - Podotremata Guinot, 1977 [SYNONYM OTHER 278910:8PS7S nidx=null parent=B8WMW]
 + Podotremata Guinot, 1977 [SYNONYM SECTION_ZOOLOGY 281951:BVBTJ nidx=null parent=B8WMW]
Poecilimon (Poecilimon) antalyaensis
 - Poecilimon (Poecilimon) antalyaensis (Karabag, 1975) [ACCEPTED SPECIES 278910:8Q3FJ nidx=null]
 + Poecilimon (Poecilimon) antalyaensis (Karabag, 1975) [ACCEPTED SPECIES 281951:BVRQQ nidx=null]
Poecilimon geoktschaicus
 - Poecilimon geoktschaicus [SYNONYM SPECIES 278910:8PHVY nidx=null parent=4KSJH]
 + Poecilimon geoktschaicus Stshelkanovtzev, 1910 [SYNONYM SPECIES 281951:BVRQR nidx=null parent=4KSJH]
Poecilimon geoktshaicus
 - Poecilimon geoktshaicus [SYNONYM SPECIES 278910:8Q3FT nidx=null parent=4KSJH]
 + Poecilimon geoktshaicus Stshelkanovtzev, 1910 [SYNONYM SPECIES 281951:BVTVQ nidx=null parent=4KSJH]
Poecilimon zawadskii
 - Poecilimon zawadskii [SYNONYM SPECIES 278910:8PHWG nidx=null parent=4KSJH]
 + Poecilimon zawadskii Stshelkanovtzev, 1910 [SYNONYM SPECIES 281951:BVTVH nidx=null parent=4KSJH]
Poecilocera sanguinolenta
 - Poecilocera sanguinolenta [SYNONYM SPECIES 278910:8Q3GG nidx=null parent=7KW97]
 + Poecilocera sanguinolenta (De Geer, 1773) [SYNONYM SPECIES 281951:BVTVP nidx=null parent=7KW97]
Poecilocerus roseipennis
 - Poecilocerus roseipennis [SYNONYM SPECIES 278910:8PHWN nidx=null parent=7KVX7]
 + Poecilocerus roseipennis Serville, 1831 [SYNONYM SPECIES 281951:4KT9T 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 281951:BVRQW nidx=null parent=9VLC5]
Polyamia (Polyamia)
 - Polyamia (Polyamia) DeLong, 1926 [ACCEPTED SUBGENUS 278910:BMLTD nidx=null]
 + Polyamia (Polyamia) DeLong, 1926 [ACCEPTED SUBGENUS 281951:BVDKJ 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 281951:BVV35 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 281951:BVWWP nidx=null parent=5VWDS]
Ponana (Ponana)
 - Ponana (Ponana) Ball, 1920 [ACCEPTED SUBGENUS 278910:BJ69G nidx=null]
 + Ponana (Ponana) Ball, 1920 [ACCEPTED SUBGENUS 281951:BV97Z nidx=null]
Porcellio gertschi
 - Porcellio gertschi Vandel, 1942 [SYNONYM SPECIES 278910:4LW7Y nidx=null parent=65J35]
 + Porcellio gertschi Van Name, 1942 [SYNONYM SPECIES 281951:BVV6V nidx=null parent=65J35]
Poronoticae
 - Poronoticae Grandjean, 1954 [ACCEPTED OTHER 278910:8P4B3 nidx=null]
 + Poronoticae Grandjean, 1954 [ACCEPTED SECTION_ZOOLOGY 281951:BVFJR 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 281951:BVV5N 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 281951:BVWWT nidx=null parent=5638V]
Porotrichum expansum
 - Porotrichum expansum (Taylor) Mitt. [ACCEPTED SPECIES 278910:4LYV2 nidx=null]
 + Porotrichum expansum (Taylor) Spruce [ACCEPTED SPECIES 281951:BVV5R nidx=null]
Porotrichum longirostre
 - Porotrichum longirostre (Hook.) Mitt. [ACCEPTED SPECIES 278910:6W7WS nidx=null]
 + Porotrichum longirostre (Hook.) Spruce [ACCEPTED SPECIES 281951:BVBCH 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 281951:BVWX2 nidx=null parent=4LYVC]
Primuloideae
 - Primuloideae Kostel. [ACCEPTED SUBFAMILY 278910:K79 nidx=null]
 + Primuloideae Burnett [ACCEPTED SUBFAMILY 281951:BVBDB nidx=null]
Prociphilus (Paraprociphilus) tessellatus
 - Prociphilus (Paraprociphilus) tessellatus (Fitch, 1851) [ACCEPTED SPECIES 278910:BT7FR nidx=null]
 + Prociphilus (Paraprociphilus) tessellatus (Fitch, 1851) [ACCEPTED SPECIES 281951:4MNFK nidx=null]
Prociphilus (Stagona) himalayaensis
 - Prociphilus (Stagona) himalayaensis Chakrabarti, 1976 [ACCEPTED SPECIES 278910:4MNGS nidx=null]
 + Prociphilus (Stagona) himalayaensis Chakrabarti, 1976 [ACCEPTED SPECIES 281951:BVV97 nidx=null]
Promecops fallax
 - Promecops fallax Schoenherr, 1840 [SYNONYM SPECIES 278910:BF72Y nidx=null parent=4MSK8]
 + Promecops fallax Fåhraeus, 1840 [SYNONYM SPECIES 281951:BVBH2 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 281951:BVVBR 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 281951:BVB5V nidx=null]
Psorodonotus hastatus
 - Psorodonotus hastatus [SYNONYM SPECIES 278910:8Q3LL nidx=null parent=5GTPS]
 + Psorodonotus hastatus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 281951:BVVL4 nidx=null parent=5GTPS]
Pteridoideae
 - Pteridoideae C. Chr. ex Crabbe, Jermy & Mickel [ACCEPTED SUBFAMILY 278910:B8X4F nidx=null]
 + Pteridoideae Link [ACCEPTED SUBFAMILY 281951:BV8QP nidx=null]
Pterygocythereis (Pterygocythere)
 - Pterygocythereis (Pterygocythere) [ACCEPTED SUBGENUS 278910:BSHY8 nidx=null]
 + Pterygocythereis (Pterygocythere) [ACCEPTED SUBGENUS 281951:BVB4L 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 281951:BVBGM 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 281951:BVZZ5 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 281951:BVZZ4 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 281951:BW25G nidx=null parent=5KSJP]
Pulsatilla subslavica
 - Pulsatilla subslavica Futák ex Goliášová [SYNONYM SPECIES 278910:4QGVJ nidx=null parent=5KSJP]
 + Pulsatilla subslavica [SYNONYM SPECIES 281951:BVVXG nidx=null parent=5KSJP]
Pycnonoticae
 - Pycnonoticae Grandjean, 1954 [ACCEPTED OTHER 278910:8P4B4 nidx=null]
 + Pycnonoticae Grandjean, 1954 [ACCEPTED SECTION_ZOOLOGY 281951:BVFJS nidx=null]
Racomitrium crispipilum
 - Racomitrium crispipilum (Taylor) A. Jaeger [SYNONYM SPECIES 278910:4R8NL nidx=null parent=9L5VB]
 + Racomitrium crispipilum (Taylor) Spruce [SYNONYM SPECIES 281951:BVSFJ 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 281951:BVS5Q 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 281951:BVFFY nidx=null parent=6HWFM]
Recilia (Insulanus)
 - Recilia (Insulanus) Linnavuori, 1960 [SYNONYM SUBGENUS 278910:BSQ8H nidx=null parent=8R5HB]
 + Recilia (Insulanus) Linnavuori, 1960 [SYNONYM SUBGENUS 281951:BVF34 nidx=null parent=8R5HB]
Rhaphidorrhynchum
 - Rhaphidorrhynchum (Schimp. ex Mitt.) Mitt. [SYNONYM GENUS 278910:9W3WD nidx=null parent=9JNF7]
 + Rhaphidorrhynchum Spruce [SYNONYM GENUS 281951:BVRWK nidx=null parent=9JNF7]
Rhaphidorrhynchum contiguum
 - Rhaphidorrhynchum contiguum (Mitt.) Mitt. [SYNONYM SPECIES 278910:9VZ3X nidx=null parent=BKBHN]
 + Rhaphidorrhynchum contiguum (Mitt.) Besch. [SYNONYM SPECIES 281951:BVX4D nidx=null parent=BKBHN]
Rhaponticum australe
 - Rhaponticum australe (Gaudich.) Soskov [SYNONYM SPECIES 278910:4S5CM nidx=null parent=727FZ]
 + Rhaponticum australe (Gaudich.) Soskov [ACCEPTED SPECIES 281951:4S5CL nidx=null]
Rheochara
 - Rheochara Mulsant & Rey, 1875 [SYNONYM GENUS 278910:BSPRM nidx=null parent=9JBP5]
 + Rheochara Mulsant & Rey, 1874 [SYNONYM GENUS 281951:BVDQP nidx=null parent=9JBP5]
 + Rheochara Mulsant & Rey, 1875 [SYNONYM GENUS 281951:BVDQQ nidx=null parent=9JBP5]
Rhopalomyzus (Rhopalomyzus)
 - Rhopalomyzus (Rhopalomyzus) Mordvilko, 1921 [SYNONYM SUBGENUS 278910:BSPSN nidx=null parent=8Q6M2]
 + Rhopalomyzus (Rhopalomyzus) Mordvilko, 1921 [SYNONYM SUBGENUS 281951:BVDR2 nidx=null parent=8Q6M2]
Rhopalomyzus (Rhopalomyzus) coerulescens
 - Rhopalomyzus (Rhopalomyzus) coerulescens [SYNONYM SPECIES 278910:BTCT8 nidx=null parent=3MVCM]
 + Rhopalomyzus (Rhopalomyzus) coerulescens [SYNONYM SPECIES 281951:BVW8Y nidx=null parent=3MVCM]
Rhynchostegium aquaticum
 - Rhynchostegium aquaticum A. Jaeger [ACCEPTED SPECIES 278910:9MFTQ nidx=null]
 + Rhynchostegium aquaticum Spruce [ACCEPTED SPECIES 281951:BVSL4 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 281951:BVX4Q 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 281951:BW2GY nidx=null parent=4WFDQ]
Rhynchostegium recurvans
 - Rhynchostegium recurvans (Michx.) Besch. [SYNONYM SPECIES 278910:9SW9Z nidx=null parent=68R86]
 + Rhynchostegium recurvans (Michx.) Austin [SYNONYM SPECIES 281951:BVX4R nidx=null parent=68R86]
Rhynchostegium scariosum
 - Rhynchostegium scariosum (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:9MFVB nidx=null]
 + Rhynchostegium scariosum (Taylor) Spruce [ACCEPTED SPECIES 281951:BVSL5 nidx=null]
Rhynchostegium serrulatum
 - Rhynchostegium serrulatum (Hedw.) A. Jaeger [ACCEPTED SPECIES 278910:9MFVD nidx=null]
 + Rhynchostegium serrulatum (Hedw.) Austin [ACCEPTED SPECIES 281951:BVSL6 nidx=null]
Rhynchostegium ulicon
 - Rhynchostegium ulicon (Taylor) A. Jaeger [ACCEPTED SPECIES 278910:4STS7 nidx=null]
 + Rhynchostegium ulicon (Taylor) Spruce [ACCEPTED SPECIES 281951:BVWB9 nidx=null]
Rhytidium
 - Rhytidium (Sull.) Kindb. [ACCEPTED GENUS 278910:9JN6Z nidx=null]
 + Rhytidium (Sull.) Austin ex C.F. Parker [ACCEPTED GENUS 281951:BV8X6 nidx=null]
Rhytidium rugosum
 - Rhytidium rugosum (Hedw.) Kindb. [ACCEPTED SPECIES 278910:4SWJY nidx=null]
 + Rhytidium rugosum (Hedw.) Austin ex C.F. Parker [ACCEPTED SPECIES 281951:BVBHH nidx=null]
Riccia ciliaris
 - Riccia ciliaris Spreng. [SYNONYM SPECIES 278910:9VPYZ nidx=null parent=4SZ9Y]
 + Riccia ciliaris Roth [SYNONYM SPECIES 281951:BVX4Y nidx=null parent=4SZ9Y]
Riccia sullivantii
 - Riccia sullivantii Austin [SYNONYM SPECIES 278910:9SWGQ nidx=null parent=5KXMF]
 + Riccia sullivantii Austin ex Peck [SYNONYM SPECIES 281951:BVSLX nidx=null parent=5KXMF]
Rinacapritermes
 - Rinacapritermes Amina & Rajmohana, 2022 [ACCEPTED GENUS 278910:9WT26 nidx=null]
 + Rinacapritermes Poovoli & Keloth, 2022 [ACCEPTED GENUS 281951:BVG3N nidx=null]
Rinacapritermes abundans
 - Rinacapritermes abundans Amina & Rajmohana, 2022 [ACCEPTED SPECIES 278910:9WW5K nidx=null]
 + Rinacapritermes abundans Poovoli & Keloth, 2022 [ACCEPTED SPECIES 281951:BVG5G nidx=null]
Rinacapritermes silvius
 - Rinacapritermes silvius Amina & Rajmohana, 2022 [ACCEPTED SPECIES 278910:9WW5L nidx=null]
 + Rinacapritermes silvius Poovoli & Keloth, 2022 [ACCEPTED SPECIES 281951:BVG5H nidx=null]
Rinoreeae
 - Rinoreeae Reiche & Taub. [SYNONYM UNRANKED 278910:7NM9G nidx=null parent=KHG]
 + Rinoreeae Reiche & Taubert [SYNONYM UNRANKED 281951:BVBFY nidx=null parent=KHG]
Rissoella glaber
 - Rissoella glaber Gray, 1847 [SYNONYM SPECIES 278910:4T5ZL nidx=null parent=4T5Z5]
 + Rissoella glaber (Brown, 1827) [SYNONYM SPECIES 281951:BVWFL 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 281951:BVWFM nidx=null parent=4T5Z5]
Romanovskajaella gissarensis
 - Romanovskajaella gissarensis (Burkova-Bogoslovskaya, 1963) [ACCEPTED SPECIES 278910:7T2S9 nidx=null]
 + Romanovskajaella gissarensis (Belyakova, 1970) [ACCEPTED SPECIES 281951:BVWG2 nidx=null]
Rosoideae
 - Rosoideae Martinov [ACCEPTED SUBFAMILY 278910:B7X9B nidx=null]
 + Rosoideae Arn. [ACCEPTED SUBFAMILY 281951:628NC nidx=null]
Rudolphisporis mecsekensis
 - Rudolphisporis mecsekensis E. Nagy [ACCEPTED SPECIES 278910:9WFYD nidx=null]
 + Rudolphisporis mecsekensis (E. Nagy) P. Geissler & Bischl. [ACCEPTED SPECIES 281951:BVX57 nidx=null]
Sagartiogeton (Actinothoe)
 - Sagartiogeton (Actinothoe) [ACCEPTED SUBGENUS 278910:BSGVW nidx=null]
 + Sagartiogeton (Actinothoe) [ACCEPTED SUBGENUS 281951:BV93F nidx=null]
Sagina crassifolia
 - Sagina crassifolia [SYNONYM SPECIES 278910:4TYG2 nidx=null parent=X5XN]
 + Sagina crassifolia d'Urv. [SYNONYM SPECIES 281951:BVDSX nidx=null parent=X5XN]
Sagina subulata
 - Sagina subulata [AMBIGUOUS_SYNONYM SPECIES 278910:4TYJM nidx=null parent=X5XS]
 + Sagina subulata d'Urv. [SYNONYM SPECIES 281951:BVDSY nidx=null parent=X5XS]
Salomona arjane
 - Salomona arjane [SYNONYM SPECIES 278910:BT8MJ nidx=null parent=6XF59]
 + Salomona arjane Willemse, 1959 [SYNONYM SPECIES 281951:BVSR9 nidx=null parent=6XF59]
Salviniaceae
 - Salviniaceae Rchb. [ACCEPTED FAMILY 278910:B8VC3 nidx=null]
 + Salviniaceae Martinov [ACCEPTED FAMILY 281951:BV8H4 nidx=null]
Saxosporis hidasensis
 - Saxosporis hidasensis E. Nagy [ACCEPTED SPECIES 278910:9VTJL nidx=null]
 + Saxosporis hidasensis (E. Nagy) P. Geissler & Bischl. [ACCEPTED SPECIES 281951:BVX5D nidx=null]
Scaphytopius (Cloanthanus) canus
 - Scaphytopius (Cloanthanus) canus Hepner, 1946 [SYNONYM SPECIES 278910:8RDWQ nidx=null parent=9KSKK]
 + Scaphytopius (Cloanthanus) canus Hepner, 1946 [SYNONYM SPECIES 281951:BVSSZ nidx=null parent=9KSKK]
Scaphytopius (Cloanthanus) hilaris
 - Scaphytopius (Cloanthanus) hilaris Linnavuori, 1959 [SYNONYM SPECIES 278910:8RDXQ nidx=null parent=9KSMC]
 + Scaphytopius (Cloanthanus) hilaris Linnavuori, 1959 [SYNONYM SPECIES 281951:BVWLM nidx=null parent=9KSMC]
Scaphytopius (Cloanthanus) iadmon
 - Scaphytopius (Cloanthanus) iadmon Linnavuori, 1973 [SYNONYM SPECIES 278910:8RDXS nidx=null parent=9KSMF]
 + Scaphytopius (Cloanthanus) iadmon Linnavuori, 1973 [SYNONYM SPECIES 281951:BVWLN nidx=null parent=9KSMF]
Scaphytopius (Cloanthanus) paraguayensis
 - Scaphytopius (Cloanthanus) paraguayensis Cheng, 1980 [SYNONYM SPECIES 278910:6Y76H nidx=null parent=9KSP7]
 + Scaphytopius (Cloanthanus) paraguayensis Cheng, 1980 [SYNONYM SPECIES 281951:8RDYR nidx=null parent=9KSP7]
Scaphytopius (Cloanthanus) paulistanus
 - Scaphytopius (Cloanthanus) paulistanus Zanol, 2000 [SYNONYM SPECIES 278910:6XV6F nidx=null parent=9KSP9]
 + Scaphytopius (Cloanthanus) paulistanus Zanol, 2000 [SYNONYM SPECIES 281951:8RDYT nidx=null parent=9KSP9]
Scaphytopius (Cloanthanus) rotundiceps
 - Scaphytopius (Cloanthanus) rotundiceps Linnavuori, 1959 [SYNONYM SPECIES 278910:8RDZ3 nidx=null parent=9KSPJ]
 + Scaphytopius (Cloanthanus) rotundiceps Linnavuori, 1959 [SYNONYM SPECIES 281951:BVWLV nidx=null parent=9KSPJ]
Scaphytopius (Cloanthanus) vittifrons
 - Scaphytopius (Cloanthanus) vittifrons Hepner, 1946 [SYNONYM SPECIES 278910:8RDZS nidx=null parent=9KSQK]
 + Scaphytopius (Cloanthanus) vittifrons Hepner, 1946 [SYNONYM SPECIES 281951:BVSTD nidx=null parent=9KSQK]
Scaphytopius (Convelinus) albifrons
 - Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 278910:BTDHL nidx=null parent=9KSJB]
 + Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 281951:BVWLC nidx=null parent=9KSJB]
Scaphytopius (Convelinus) californiensis
 - Scaphytopius (Convelinus) californiensis Hepner, 1946 [SYNONYM SPECIES 278910:BTDHN nidx=null parent=9KSKF]
 + Scaphytopius (Convelinus) californiensis Hepner, 1946 [SYNONYM SPECIES 281951:BVWLG nidx=null parent=9KSKF]
Scaphytopius (Convelinus) irroratus nogalinus
 - Scaphytopius (Convelinus) irroratus nogalinus (Ball, 1931) [SYNONYM SUBSPECIES 278910:BTKPJ nidx=null parent=9LK9K]
 + Scaphytopius (Convelinus) irroratus nogalinus (Ball, 1931) [SYNONYM SUBSPECIES 281951:BVZDS nidx=null parent=9LK9K]
Scaphytopius (Convelinus) peruigua
 - Scaphytopius (Convelinus) peruigua Zanol, 2000 [SYNONYM SPECIES 278910:8RF2N nidx=null parent=9KSPD]
 + Scaphytopius (Convelinus) peruigua Zanol, 2000 [SYNONYM SPECIES 281951:BVWLT nidx=null parent=9KSPD]
Scaphytopius (Convelinus) saginatus
 - Scaphytopius (Convelinus) saginatus Linnavuori, 1959 [SYNONYM SPECIES 278910:6XV79 nidx=null parent=9KSPN]
 + Scaphytopius (Convelinus) saginatus Linnavuori, 1959 [SYNONYM SPECIES 281951:8RF2P nidx=null parent=9KSPN]
Scaphytopius (Convelinus) spinosus
 - Scaphytopius (Convelinus) spinosus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 278910:8RF2R nidx=null parent=9KSPY]
 + Scaphytopius (Convelinus) spinosus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 281951:BVWLX nidx=null parent=9KSPY]
Scaphytopius (Fundarus) obatubira
 - Scaphytopius (Fundarus) obatubira Zanol, 2000 [SYNONYM SPECIES 278910:79V6X nidx=null parent=9KSNY]
 + Scaphytopius (Fundarus) obatubira Zanol, 2000 [SYNONYM SPECIES 281951:8RF2T nidx=null parent=9KSNY]
Scaphytopius (Scaphytopius) amazonicus
 - Scaphytopius (Scaphytopius) amazonicus Zanol, 2000 [SYNONYM SPECIES 278910:8RF2Y nidx=null parent=9KSJL]
 + Scaphytopius (Scaphytopius) amazonicus Zanol, 2000 [SYNONYM SPECIES 281951:BVWLD nidx=null parent=9KSJL]
Scaphytopius (Scaphytopius) carenatus
 - Scaphytopius (Scaphytopius) carenatus Zanol, 2000 [SYNONYM SPECIES 278910:8RF2Z nidx=null parent=9KSKM]
 + Scaphytopius (Scaphytopius) carenatus Zanol, 2000 [SYNONYM SPECIES 281951:BVWLH nidx=null parent=9KSKM]
Scaphytopius (Scaphytopius) elegans
 - Scaphytopius (Scaphytopius) elegans (Van Duzee, 1890) [SYNONYM SPECIES 278910:9QP2N nidx=null parent=9QP2P]
 + Scaphytopius (Scaphytopius) elegans (Van Duzee, 1890) [SYNONYM SPECIES 281951:8RNFM nidx=null parent=9QP2P]
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 281951:BVX5K nidx=null parent=3KXRX]
Schizaphis (Schizaphis) borealis
 - Schizaphis (Schizaphis) borealis [ACCEPTED SPECIES 278910:BCJG8 nidx=null]
 + Schizaphis (Schizaphis) borealis [ACCEPTED SPECIES 281951:BVWMH nidx=null]
Schizaphis (Schizaphis) mali
 - Schizaphis (Schizaphis) mali [ACCEPTED SPECIES 278910:79VCB nidx=null]
 + Schizaphis (Schizaphis) mali [ACCEPTED SPECIES 281951:BVWMM nidx=null]
Schizaphis (Schizaphis) mehijiwae
 - Schizaphis (Schizaphis) mehijiwae [ACCEPTED SPECIES 278910:BCJGD nidx=null]
 + Schizaphis (Schizaphis) mehijiwae [ACCEPTED SPECIES 281951:BVWMN nidx=null]
Schizaphis (Schizaphis) rotundiventris
 - Schizaphis (Schizaphis) rotundiventris [ACCEPTED SPECIES 278910:BJF9S nidx=null]
 + Schizaphis (Schizaphis) rotundiventris [ACCEPTED SPECIES 281951:BVCYJ nidx=null]
Schizaphis graminae
 - Schizaphis graminae Rondani, 1852 [SYNONYM SPECIES 278910:BSSQC nidx=null parent=8PLRS]
 + Schizaphis graminae Rondani, 1852 [SYNONYM SPECIES 281951:BVFYC nidx=null parent=8PLRS]
Scopelophila sikkimensis
 - Scopelophila sikkimensis Müll. Hal. [SYNONYM SPECIES 278910:9KT65 nidx=null parent=4VV79]
 + Scopelophila sikkimensis Müll. Hal. ex Renauld & Cardot [SYNONYM SPECIES 281951:BVWQW nidx=null parent=4VV79]
Scudderia williansi
 - Scudderia williansi [SYNONYM SPECIES 278910:8Q3VT nidx=null parent=5L4FP]
 + Scudderia williansi Piza, 1974 [SYNONYM SPECIES 281951:BVWRK nidx=null parent=5L4FP]
Scyramathia rivers-andersoni
 - Scyramathia rivers-andersoni Alcock, 1895 [SYNONYM SPECIES 278910:BTDRJ nidx=null parent=86YCB]
 + Scyramathia rivers-andersoni Alcock, 1895 [SYNONYM SPECIES 281951:BVWRN nidx=null parent=86YCB]
Sellnickia caudata
 - Sellnickia caudata (Michael, 1898) [ACCEPTED SPECIES 278910:6YF46 nidx=null]
 + Sellnickia caudata (Michael, 1908) [ACCEPTED SPECIES 281951:BVCYV nidx=null]
Sematophyllum pungens
 - Sematophyllum pungens (Hedw.) Mitt. [SYNONYM SPECIES 278910:9SXL3 nidx=null parent=9P9L]
 + Sematophyllum pungens (Hedw.) Spruce [SYNONYM SPECIES 281951:BVXB6 nidx=null parent=9P9L]
Semiaphis lonicerinae
 - Semiaphis lonicerinae [SYNONYM SPECIES 278910:BTDVH nidx=null parent=MVLX]
 + Semiaphis lonicerinae [SYNONYM SPECIES 281951:BVWSY nidx=null parent=MVLX]
Senecionaceae
 - Senecionaceae Spenn. [SYNONYM UNRANKED 278910:G7Z nidx=null parent=622TP]
 + Senecionaceae Bercht. & J.Presl [SYNONYM UNRANKED 281951:BV8N6 nidx=null parent=622TP]
Sepiida
 - Sepiida Zittel, 1895 [ACCEPTED ORDER 278910:B6L8M nidx=null]
 + Sepiida Gray, 1849 [ACCEPTED ORDER 281951: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 281951:BVB5X 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 281951:BV9MF nidx=null parent=4WY9Y]
Sesuvioideae
 - Sesuvioideae [ACCEPTED SUBFAMILY 278910:KBT nidx=null]
 + Sesuvioideae Lindl. [ACCEPTED SUBFAMILY 281951: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 281951:BW265 nidx=null parent=7WXQL]
Sinuitopsida
 - Sinuitopsida [ACCEPTED ORDER 278910:7NVZ3 nidx=null]
 + Sinuitopsida Starobogatov, 1970 [ACCEPTED ORDER 281951:BVB54 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 281951:BVBJS nidx=null]
Sitobion (Sitobion) congolense
 - Sitobion (Sitobion) congolense (Doncaster & Hille Ris Lambers, 1956) [ACCEPTED SPECIES 278910:6Z52D nidx=null]
 + Sitobion (Sitobion) congolense (Doncaster & Hille Ris Lambers, 1956) [ACCEPTED SPECIES 281951:BVWXY 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 281951:4Y6BV nidx=null]
Sonneratioideae
 - Sonneratioideae (Engl. & Gilg) Graham, Thorne & Reveal [SYNONYM UNRANKED 278910:7NM2Z nidx=null parent=628KQ]
 + Sonneratioideae S.A.Graham [SYNONYM UNRANKED 281951:BVBDD 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 281951:BW269 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 281951:BW26B 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 281951:BW26D 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 281951:BW26C 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 281951:BW2HJ nidx=null parent=6YY95]
Sphagnum insulosum
 - Sphagnum insulosum Ångstr. [SYNONYM SPECIES 278910:9SXZV nidx=null parent=4YT5V]
 + Sphagnum insulosum Ångstr. ex Schimp. [SYNONYM SPECIES 281951:BVXD9 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 281951:BW2HK nidx=null parent=4YTBX]
Sphagnum lenense
 - Sphagnum lenense H. Lindb. ex Pohle [ACCEPTED SPECIES 278910:9KV54 nidx=null]
 + Sphagnum lenense H. Lindb. [ACCEPTED SPECIES 281951:BVBKC 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 281951:BW2HM 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 281951:BW2HW 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 281951:BW26F nidx=null parent=6YY5X]
Sphagnum vermiculare
 - Sphagnum vermiculare P. Beauv. [SYNONYM SPECIES 278910:9VXXW nidx=null parent=9K2WB]
 + Sphagnum vermiculare Brid. [SYNONYM SPECIES 281951:BVXDF nidx=null parent=7259N]
Sphegina philippina
 - Sphegina philippina Thompson, 1999 [SYNONYM SPECIES 278910:8F46P nidx=null parent=8F3Z6]
 + Sphegina philippina Thompson, 1999 [SYNONYM SPECIES 281951:BVMXD nidx=null parent=8F3Z6]
Sphodromerus coeleosyriensis
 - Sphodromerus coeleosyriensis [SYNONYM SPECIES 278910:8Q3ZG nidx=null parent=PSX9]
 + Sphodromerus coeleosyriensis (Giglio-Tos, 1893) [SYNONYM SPECIES 281951:BVX4Z nidx=null parent=PSX9]
Spirulida
 - Spirulida Stolley, 1919 [ACCEPTED ORDER 278910:7NFG7 nidx=null]
 + Spirulida Haeckel, 1866 [ACCEPTED ORDER 281951:BVB55 nidx=null]
Stellaria debilis
 - Stellaria debilis [ACCEPTED SPECIES 278910:4ZRBZ nidx=null]
 + Stellaria debilis d'Urv. [ACCEPTED SPECIES 281951:BVTDG nidx=null]
Stenobothrus discoidalis
 - Stenobothrus discoidalis [SYNONYM SPECIES 278910:9GTVS nidx=null parent=7KRDZ]
 + Stenobothrus discoidalis (Eversmann, 1848) [SYNONYM SPECIES 281951:4ZVXB nidx=null parent=7KRDZ]
Stenobothrus melanopterus
 - Stenobothrus melanopterus [SYNONYM SPECIES 278910:8PK8J nidx=null parent=7KRDZ]
 + Stenobothrus melanopterus (Borck, 1848) [SYNONYM SPECIES 281951:4ZVYX nidx=null parent=7KRDZ]
Stenobothrus morio
 - Stenobothrus morio [SYNONYM SPECIES 278910:8PK8L nidx=null parent=8Q6G4]
 + Stenobothrus morio (Charpentier, 1825) [SYNONYM SPECIES 281951:BVX9X 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 281951:9THVJ nidx=null parent=BLN7T]
Stephanocaryum
 - Stephanocaryum Pop. [ACCEPTED GENUS 278910:7N29 nidx=null]
 + Stephanocaryum Pop. [SYNONYM UNRANKED 281951:BVDY4 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 281951:BVXFX 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 281951:9THVN nidx=null]
Stereophyllum chlorophyllum
 - Stereophyllum chlorophyllum (Hornsch.) Mitt. [SYNONYM SPECIES 278910:9SYYK nidx=null parent=9KN3P]
 + Stereophyllum chlorophyllum (Hornsch.) Spruce [SYNONYM SPECIES 281951:BVXG4 nidx=null parent=9KN3P]
Stereophyllum cultelliforme
 - Stereophyllum cultelliforme (Sull.) Mitt. [SYNONYM SPECIES 278910:9SYYR nidx=null parent=9VPVH]
 + Stereophyllum cultelliforme (Sull.) Spruce [SYNONYM SPECIES 281951:BVXG5 nidx=null parent=9VPVH]
Stereophyllum leucostegum
 - Stereophyllum leucostegum (Brid.) Mitt. [SYNONYM SPECIES 278910:9SYZC nidx=null parent=39YV7]
 + Stereophyllum leucostegum (Brid.) Spruce [SYNONYM SPECIES 281951:BVTH7 nidx=null parent=39YV7]
Stereophyllum radiculosum
 - Stereophyllum radiculosum (Hook.) Mitt. [ACCEPTED SPECIES 278910:6ZRBY nidx=null]
 + Stereophyllum radiculosum (Hook.) Spruce [ACCEPTED SPECIES 281951:BVBKK nidx=null]
Steromphala pennanti
 - Steromphala pennanti (R. A. Philippi, 1846) [ACCEPTED SPECIES 278910:52G3B nidx=null]
 + Steromphala pennanti (R. A. Philippi, 1851) [ACCEPTED SPECIES 281951:BVTJ2 nidx=null]
Steropleurus cavannae
 - Steropleurus cavannae [SYNONYM SPECIES 278910:8Q44W nidx=null parent=6FPW6]
 + Steropleurus cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281951:BVXFD 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 281951:BVXFG nidx=null parent=52K3K]
Stomaphis (Stomaphis) asiphon
 - Stomaphis (Stomaphis) asiphon Szelegiewicz, 1975 [ACCEPTED SPECIES 278910:BTFVV nidx=null]
 + Stomaphis (Stomaphis) asiphon Szelegiewicz, 1975 [ACCEPTED SPECIES 281951:52TQ3 nidx=null]
Streptorhynchidae
 - Streptorhynchidae Stehli, 1954 [SYNONYM INFRAORDER 278910:BTNT4 nidx=null parent=BTY4R]
 + Streptorhynchidae Stehli, 1954 [SYNONYM FAMILY 281951:BW2MG nidx=null parent=BTY4R]
Subbelba partiocrispa
 - Subbelba partiocrispa (Bulanova-Zachvatkina, 1957) [ACCEPTED SPECIES 278910:53CWW nidx=null]
 + Subbelba partiocrispa (Bulanova-Zachvatkina, 1967) [SYNONYM SPECIES 281951:BVXGH nidx=null parent=BW3T2]
Subsaltusaphis (Subsaltusaphis) pallida
 - Subsaltusaphis (Subsaltusaphis) pallida (Hille Ris Lambers, 1939) [ACCEPTED SPECIES 278910:8PKDN nidx=null]
 + Subsaltusaphis (Subsaltusaphis) pallida (Hille Ris Lambers, 1939) [ACCEPTED SPECIES 281951:BVTQV nidx=null]
Suctobelbella (Suctobelbella) naranensis
 - Suctobelbella (Suctobelbella) naranensis Hammer, 1967 [ACCEPTED SPECIES 278910:7B43H nidx=null]
 + Suctobelbella (Suctobelbella) naranensis Hammer, 1977 [ACCEPTED SPECIES 281951:BVXGL nidx=null]
Suctobelbella (Suctobelbella) palustris
 - Suctobelbella (Suctobelbella) palustris (Forsslund, 1953) [ACCEPTED SPECIES 278910:7B3DB nidx=null]
 + Suctobelbella (Suctobelbella) palustris (Forsslund, 1950) [ACCEPTED SPECIES 281951:BVXGM nidx=null]
Sycinula penicillata
 - Sycinula penicillata Schmidt, 1869 [ACCEPTED SPECIES 278910:8577Q nidx=null]
 + Sycinula penicillata Schmidt, 1869 [SYNONYM SPECIES 281951:53LPH nidx=null parent=BW4HT]
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 281951:BV9MG 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 281951:BVXJY 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 281951:BVXJZ nidx=null]
Syntrichia handelii
 - Syntrichia handelii (Schiffn.) S. Agnew & Vondr. [ACCEPTED SPECIES 278910:53ZQQ nidx=null]
 + Syntrichia handelii (Schiffn.) Bachurina [ACCEPTED SPECIES 281951:BVTZL nidx=null]
Systegium nitidulum
 - Systegium nitidulum (Müll. Hal.) A. Jaeger [SYNONYM SPECIES 278910:9SZR2 nidx=null parent=5BWWW]
 + Systegium nitidulum (Schimp.) Austin [SYNONYM SPECIES 281951:BVXKN 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 281951:BVXKP 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 281951:BVXLP nidx=null parent=9T23N]
Tayloria scabriseta
 - Tayloria scabriseta (Hook.) Mitt. [ACCEPTED SPECIES 278910:552CT nidx=null]
 + Tayloria scabriseta (Hook.) Spruce [ACCEPTED SPECIES 281951:BVV4H nidx=null]
Tectarioideae
 - Tectarioideae Holttum [PROVISIONALLY_ACCEPTED SUBFAMILY 278910:628P4 nidx=null]
 + Tectarioideae B. K. Nayar [PROVISIONALLY_ACCEPTED SUBFAMILY 281951:BVBDM 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 281951:8NKFQ nidx=null]
 + Temnocephalida Blanchard, 1849 [SYNONYM SECTION_ZOOLOGY 281951:BGXX7 nidx=null parent=8V4VJ]
Tetilla anamonaena
 - Tetilla anamonaena (Tanita, 1968) [ACCEPTED SPECIES 278910:55KSH nidx=null]
 + Tetilla anamonaena Lehnert & Stone, 2011 [ACCEPTED SPECIES 281951:BVXNS nidx=null]
Tetracapsuloides bryosalmonae
 - Tetracapsuloides bryosalmonae [ACCEPTED SPECIES 278910:85Z3K nidx=null]
 + Tetracapsuloides bryosalmonae (Canning, Curry, Feist, Longshaw & Okamura, 1999) [ACCEPTED SPECIES 281951:BVV7K nidx=null]
Tetraneura (Tetraneura) ulmoides
 - Tetraneura (Tetraneura) ulmoides Lichtenstein, 1880 [ACCEPTED SPECIES 278910:8PKK4 nidx=null]
 + Tetraneura (Tetraneura) ulmoides Lichtenstein, 1880 [ACCEPTED SPECIES 281951:BVXPF nidx=null]
Tettix crassus
 - Tettix crassus [SYNONYM SPECIES 278910:8PKN2 nidx=null parent=5LGPD]
 + Tettix crassus (Morse, 1899) [SYNONYM SPECIES 281951:55WPX nidx=null parent=5LGPD]
Textulariida
 - Textulariida [ACCEPTED ORDER 278910:47H nidx=null]
 + Textulariida Lankester, 1885 [ACCEPTED ORDER 281951:BV8FQ 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 281951:BVBG3 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 281951:BVXS3 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 281951:BVXS4 nidx=null parent=9KXLS]
Thamnotettix (Limotettix) sulphurellus
 - Thamnotettix (Limotettix) sulphurellus (Zetterstedt, 1828) [SYNONYM SPECIES 278910:BTGDW nidx=null parent=39DJM]
 + Thamnotettix (Limotettix) sulphurellus (Zetterstedt, 1828) [SYNONYM SPECIES 281951:8RNNJ nidx=null parent=39DJM]
Thamnotettix burjatus
 - Thamnotettix burjatus Kusnezov, 1931 [SYNONYM SPECIES 278910:9R65J nidx=null parent=9K89P]
 + Thamnotettix burjatus Kusnezov, 1931 [SYNONYM SPECIES 281951:BVXSC nidx=null parent=9K89P]
Thamnotettix cyane
 - Thamnotettix cyane Boheman, 1845 [SYNONYM SPECIES 278910:BHNWL nidx=null parent=8JW7D]
 + Thamnotettix cyane Boheman, 1845 [SYNONYM SPECIES 281951:BVXSL nidx=null parent=8JW7D]
Thamnotrizon frivaldskyi
 - Thamnotrizon frivaldskyi [SYNONYM SPECIES 278910:8Q4FP nidx=null parent=4GLST]
 + Thamnotrizon frivaldskyi (Herman, 1871) [SYNONYM SPECIES 281951:BVXS2 nidx=null parent=4GLST]
Thamnotrizon friwaldszkyi
 - Thamnotrizon friwaldszkyi [SYNONYM SPECIES 278910:8Q4FQ nidx=null parent=4GLST]
 + Thamnotrizon friwaldszkyi (Herman, 1871) [SYNONYM SPECIES 281951:BVXT7 nidx=null parent=4GLST]
Thamyris
 - Thamyris Claus, 1879 [SYNONYM GENUS 278910:BGSH8 nidx=null parent=7NR53]
 + Thamyris Spence Bate, 1863 [SYNONYM GENUS 281951:BVFXD nidx=null parent=7NR53]
Thoracotremata
 - Thoracotremata Guinot, 1977 [ACCEPTED OTHER 278910:8PS7T nidx=null]
 + Thoracotremata Guinot, 1977 [ACCEPTED SUBSECTION_ZOOLOGY 281951:BVFJV 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 281951:BW2J7 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 281951:BW2J8 nidx=null parent=3JM6Y]
Thuidium involvens
 - Thuidium involvens (Hedw.) Mitt. [SYNONYM SPECIES 278910:9N6H4 nidx=null parent=6TYNW]
 + Thuidium involvens (Hedw.) Spruce [SYNONYM SPECIES 281951:BVXWL nidx=null parent=6TYNW]
Thuidium leptocladum
 - Thuidium leptocladum (Taylor) Mitt. [SYNONYM SPECIES 278910:9T2LV nidx=null parent=75YNW]
 + Thuidium leptocladum (Taylor) Spruce [SYNONYM SPECIES 281951:BVXWM 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 281951:BVXWN 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 281951:BVXWP 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 281951:BVXWQ nidx=null parent=6TYP3]
Tmethis laevisculis
 - Tmethis laevisculis [SYNONYM SPECIES 278910:8Q4HP nidx=null parent=5LK82]
 + Tmethis laevisculis Krauss, 1892 [SYNONYM SPECIES 281951:BVY2T nidx=null parent=5LK82]
Tortula denticulata
 - Tortula denticulata (Wilson) Mitt. [SYNONYM SPECIES 278910:9MQPY nidx=null parent=3KV4R]
 + Tortula denticulata (Wilson) Spruce [SYNONYM SPECIES 281951:BVY3W nidx=null parent=3KV4R]
Tortula mniifolia
 - Tortula mniifolia (Sull.) Mitt. [SYNONYM SPECIES 278910:9T3F9 nidx=null parent=378P9]
 + Tortula mniifolia (Sull.) Spruce [SYNONYM SPECIES 281951:BVVDV nidx=null parent=378P9]
Tortula plinthobia
 - Tortula plinthobia (Sull. & Lesq.) Broth. [ACCEPTED SPECIES 278910:57HVT nidx=null]
 + Tortula plinthobia (Sull. & Lesq.) Austin [ACCEPTED SPECIES 281951:BVVDW nidx=null]
Torynommoida
 - Torynommoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED OTHER 278910:BRH62 nidx=null]
 + Torynommoida Karasawa, Schweitzer & Feldmann, 2011 [ACCEPTED SECTION_ZOOLOGY 281951:BDM5R nidx=null]
Trama (Neotrama) kulinitschae
 - Trama (Neotrama) kulinitschae [ACCEPTED SPECIES 278910:BPRTQ nidx=null]
 + Trama (Neotrama) kulinitschae [ACCEPTED SPECIES 281951:BVY4W nidx=null]
Trapoideae
 - Trapoideae Voigt [SYNONYM UNRANKED 278910:7NM44 nidx=null parent=628KQ]
 + Trapoideae Link [SYNONYM UNRANKED 281951:BVBDN nidx=null parent=628KQ]
Traulia kukenthali
 - Traulia kukenthali [SYNONYM SPECIES 278910:BTBQW nidx=null parent=BV659]
 + Traulia kukenthali Ramme, 1941 [SYNONYM SPECIES 281951:57YGC nidx=null parent=BV659]
Trichilioideae
 - Trichilioideae Kostel. [SYNONYM UNRANKED 278910:KG7 nidx=null parent=JVZ]
 + Trichilioideae Luerss. [SYNONYM UNRANKED 281951:BVBDQ nidx=null parent=JVZ]
Trichophoxus epistomus
 - Trichophoxus epistomus [SYNONYM SPECIES 278910:58H7Z nidx=null parent=4S67K]
 + Trichophoxus epistomus (Shoemaker, 1938) [SYNONYM SPECIES 281951:BVY5Q nidx=null parent=4S67K]
Tritia pellucida
 - Tritia pellucida (Risso, 1827) [ACCEPTED SPECIES 278910:9G6GY nidx=null]
 + Tritia pellucida (Risso, 1826) [ACCEPTED SPECIES 281951:7D6FT nidx=null]
Trochus erythraeus
 - Trochus erythraeus Brocchi, 1821 [SYNONYM SPECIES 278910:5983V nidx=null parent=7CVNQ]
 + Trochus erythraeus [sic] [SYNONYM SPECIES 281951:BVY8P 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 281951:BVY8Q nidx=null parent=BVTJ2]
Troya riveti
 - Troya riveti Roewer, 1923 [ACCEPTED SPECIES 278910:BCS7P nidx=null]
 + Troya riveti Roewer, 1914 [ACCEPTED SPECIES 281951:7Z6KN nidx=null]
Tuberculatus (Orientuberculoides) higuchii
 - Tuberculatus (Orientuberculoides) higuchii Hille Ris Lambers, 1974 [ACCEPTED SPECIES 278910:7D9WX nidx=null]
 + Tuberculatus (Orientuberculoides) higuchii Hille Ris Lambers, 1974 [ACCEPTED SPECIES 281951:BVY9Y nidx=null]
Turbella galiciana
 - Turbella galiciana (Schmidt, 1858) [SYNONYM SPECIES 278910:59ML7 nidx=null parent=76W2X]
 + Turbella galiciana (Schmidt, 1858) Diesing, 1862 [SYNONYM SPECIES 281951:BVYBV nidx=null parent=76W2X]
Typhlocyba stactogala
 - Typhlocyba stactogala Perris, 1857 [SYNONYM SPECIES 278910:8RP4Z nidx=null parent=9WS86]
 + Typhlocyba stactogala (Walker, 1851) [SYNONYM SPECIES 281951:BVYFC nidx=null parent=9WS86]
Typhloiulus lobifer
 - Typhloiulus lobifer Attems, 1951 [ACCEPTED SPECIES 278910:8N5J9 nidx=null]
 + Typhloiulus lobifer Attems, 1951 [SYNONYM SPECIES 281951:59WTB 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 281951:BVYFF nidx=null parent=6SQK5]
Typosyllis ehlersoides
 - Typosyllis ehlersoides [ACCEPTED SPECIES 278910:59YPD nidx=null]
 + Typosyllis ehlersoides [database misspelling] [SYNONYM SPECIES 281951:BVYFM nidx=null parent=BW479]
Typosyllis ehlersoides japonica
 - Typosyllis ehlersoides japonica Buzhinskaja, 1985 [SYNONYM SUBSPECIES 278910:5LP94 nidx=null parent=5F9ZN]
 + Typosyllis ehlersoides japonica [database misspelling] [SYNONYM SUBSPECIES 281951:BW245 nidx=null parent=BW479]
Uroleucon (Uroleucon) erigeronense
 - Uroleucon (Uroleucon) erigeronense (Thomas, 1878) [SYNONYM SPECIES 278910:BSMW8 nidx=null parent=BSMW9]
 + Uroleucon (Uroleucon) erigeronense (Thomas, 1878) [SYNONYM SPECIES 281951:BVD6P nidx=null parent=BSMW9]
Uroleucon (Uroleucon) monticolum
 - Uroleucon (Uroleucon) monticolum (Takahashi, 1935) [ACCEPTED SPECIES 278910:BTHBH nidx=null]
 + Uroleucon (Uroleucon) monticolum (Takahashi, 1935) [ACCEPTED SPECIES 281951:7DVTJ nidx=null]
Uroleucon (Uroleucon) reynoldense
 - Uroleucon (Uroleucon) reynoldense (Olive, 1965) [ACCEPTED SPECIES 278910:BTC8V nidx=null]
 + Uroleucon (Uroleucon) reynoldense (Olive, 1965) [ACCEPTED SPECIES 281951:7DW3W nidx=null]
Uromenus cavannae
 - Uromenus cavannae [SYNONYM SPECIES 278910:8Q4Q8 nidx=null parent=6FPW6]
 + Uromenus cavannae (Targioni-Tozzetti, 1881) [SYNONYM SPECIES 281951:BVYJN 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 281951:BVYJP nidx=null parent=7DZQH]
Valerianeae
 - Valerianeae Höck ex Graebn. [SYNONYM UNRANKED 278910:93LV8 nidx=null parent=7NM4Q]
 + Valerianeae Dumort. [SYNONYM UNRANKED 281951:BVBG8 nidx=null parent=7NM4Q]
Vasseuriidae
 - Vasseuriidae [ACCEPTED FAMILY 278910:7NXB7 nidx=null]
 + Vasseuriidae Naef, 1921 [ACCEPTED FAMILY 281951:BVB9S nidx=null]
Velezia clavata
 - Velezia clavata [AMBIGUOUS_SYNONYM SPECIES 278910:8VG96 nidx=null parent=992JF]
 + Velezia clavata d'Urv. [SYNONYM SPECIES 281951:9YPH4 nidx=null parent=992JF]
Verbascum seydisehirense
 - Verbascum seydisehirense Tugay & Uluku ÅŸ [ACCEPTED SPECIES 278910:7Z6TX nidx=null]
 + Verbascum seydisehirense [ACCEPTED SPECIES 281951:7G2FK nidx=null]
Vitrinellidae
 - Vitrinellidae K. J. Bush, 18997 [ACCEPTED FAMILY 278910:9JJFJ nidx=null]
 + Vitrinellidae K. J. Bush, 1897 [ACCEPTED FAMILY 281951:7NLJX nidx=null]
Vittaria minor var. minima
 - Vittaria minor var. minima Hook. [AMBIGUOUS_SYNONYM VARIETY 278910:BD9RT nidx=null parent=B9P54]
 + Vittaria minor var. minima Hook. [SYNONYM VARIETY 281951:BD9RS nidx=null parent=B9P54]
Vittarioideae
 - Vittarioideae (C. Presl) Crabbe, Jermy & Mickel [ACCEPTED SUBFAMILY 278910:B8X4X nidx=null]
 + Vittarioideae Link [ACCEPTED SUBFAMILY 281951:BV8R2 nidx=null]
Viviparus leiostracus leiostracus
 - Viviparus leiostracus leiostracus Brusina, 1874 [ACCEPTED SUBSPECIES 278910:7V49Y nidx=null]
 + Viviparus leiostracus leiostracus Brusina, 1874 [SYNONYM SUBSPECIES 281951:5LS64 nidx=null parent=5BNHB]
Walkerana
 - Walkerana Otte & Perez-Gelabert, 2009 [ACCEPTED GENUS 278910:8P2RQ nidx=null]
 + Walkerana [ACCEPTED GENUS 281951:87FV 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 281951:BVYNH 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 281951:BVYNK 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 281951:BVW7Z 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 281951:BVF7R nidx=null parent=5BWVX]
Xenusa
 - Xenusa Mulsant & Rey, 1874 [SYNONYM GENUS 278910:9JQZS nidx=null parent=9JQZT]
 + Xenusa Mulsant & Rey, 1875 [SYNONYM GENUS 281951:BVF92 nidx=null parent=9JQZT]
 + Xenusa Mulsant & Rey, 1874 [SYNONYM GENUS 281951:BVF93 nidx=null parent=9JQZT]
Xenyllodes cavernicolus
 - Xenyllodes cavernicolus Womersley, 1930 [ACCEPTED SPECIES 278910:BPTXP nidx=null]
 + Xenyllodes cavernicolus Womersley, 1930 [ACCEPTED SPECIES 281951:BVYPS nidx=null]
Xiphinema diversicaudatum
 - Xiphinema diversicaudatum (Micoletzky, 1923 &, 1927) Thorne, 1939 [ACCEPTED SPECIES 278910:8FTM8 nidx=null]
 + Xiphinema diversicaudatum (Micoletzky, 1923) Thorne, 1939 [ACCEPTED SPECIES 281951:BVBLG nidx=null]
Zonites dallianus
 - Zonites dallianus C. T. Simpson, 1889 [SYNONYM SPECIES 278910:7TP6Q nidx=null parent=7SNNS]
 + Zonites dallianus Pilsbry, 1889 [SYNONYM SPECIES 281951:BVYSM nidx=null parent=BVSZ3]
Zygaena bicolor
 - Zygaena bicolor Rocci, 1915 [SYNONYM SPECIES 278910:BTHVL nidx=null parent=94499]
 + Zygaena bicolor Rocci, 1915 [SYNONYM SPECIES 281951:99X42 nidx=null parent=94499]
 + Zygaena bicolor Rocci, 1914 [SYNONYM SPECIES 281951:BVYTN nidx=null parent=9448M]
Zygaena interrupta
 - Zygaena interrupta Reiss, 1940 [SYNONYM SPECIES 278910:99XHH nidx=null parent=94GCY]
 + Zygaena interrupta Reiss, 1953 [SYNONYM SPECIES 281951:BVYYL nidx=null parent=98VHD]
 + Zygaena interrupta Reiss, 1941 [SYNONYM SPECIES 281951:BVYYM nidx=null parent=94GCY]
 + Zygaena interrupta Reiss, 1940 [SYNONYM SPECIES 281951:BVYYN nidx=null parent=94GCY]
 + Zygaena interrupta Reiss, 1941 [SYNONYM SPECIES 281951:BVYYP nidx=null parent=94GCY]
 + Zygaena interrupta Reiss, 1964 [AMBIGUOUS_SYNONYM SPECIES 281951:BVYYQ nidx=null parent=93SHD]
 + Zygaena interrupta Wiegel, 1965 [AMBIGUOUS_SYNONYM SPECIES 281951:BVYYR nidx=null parent=93SF2]
Zygaena plutonia
 - Zygaena plutonia Reiss, 1941 [SYNONYM SPECIES 278910:BTJ3L nidx=null parent=94GCY]
 + Zygaena plutonia Reiss, 1940 [AMBIGUOUS_SYNONYM SPECIES 281951:BVZ2M nidx=null parent=93SHD]
 + Zygaena plutonia Reiss, 1941 [SYNONYM SPECIES 281951:BVZ2N nidx=null parent=94GCY]
 + Zygaena plutonia Holik, 1941 [SYNONYM SPECIES 281951:BVZ2P nidx=null parent=944KG]
 + Zygaena plutonia Holik, 1941 [SYNONYM SPECIES 281951:BVZ2Q nidx=null parent=944KJ]
 + Zygaena plutonia Holik, 1941 [SYNONYM SPECIES 281951:BVZ2R nidx=null parent=94GCY]
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 281951:BVWBV nidx=null parent=5DB5C]