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- Gyrodinium fissum (Levander) Kofoid & Swezy
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- Oscillatoria corallinae Gomont ex Gomont
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- Species:Acanthoceras zachariasii (Brun) Simonsen 1979
- Species:Acanthoica acanthifera Lohmann ex Lohmann
- Species:Acanthoica acanthos Schiller
- Species:Acanthoica aculeata Kamptner
- Species:Acanthoica coronata Lohmann 1903
- Species:Acanthoica janchenii Schiller
- Species:Acanthoica lithostratos J.Schiller 1926
- Species:Acanthoica monospina Schiller
- Species:Acanthoica ornata W.Conrad 1928
- Species:Acanthoica quattrospina Lohmann
- Species:Achnanthes brevipes C.Agardh
- Species:Achnanthes brevipes var. intermedia (Kützing) Cleve
- Species:Achnanthes brevipes var. parvula (Kützing) Cleve
- Species:Achnanthes delicatula (Kützing) Grunow 1880
- Species:Achnanthes lanceolata (Brébisson ex Kützing) Grunow
- Species:Achnanthes longipes C.Agardh
- Species:Achnanthes lyrata Proshkina-Lavrenko
- Species:Achnanthes subsessilis Kützing
- Species:Achnanthes taeniata Grunow
- Species:Achnanthidium exiguum (Grunow) Czarnecki
- Species:Achnanthidium exile (Kützing) Heiberg
- Species:Achnanthidium minutissimum (Kützing) Czarnecki
- Species:Achradina pulchra Lohmann
- Species:Achradina sulcata Lohmann
- Species:Actinastrum hantzschii Lagerheim
- Species:Actinastrum hantzschii var. subtile Woloszynska 1911
- Species:Actinocyclus ehrenbergii Ralfs
- Species:Actinocyclus ehrenbergii var. crassus (W.Smith) Hustedt
- Species:Actinocyclus normanii (W.Gregory ex Greville) Hustedt
- Species:Actinocyclus tenellus (Brébisson) Grunow
- Species:Actinoptychus senarius (Ehrenberg) Ehrenberg
- Species:Actinoptychus undulatus (Kützing) Ralfs
- Species:Acutodesmus acuminatus (Lagerheim) P.M.Tsarenko 2000
- Species:Acutodesmus acutiformis (Schröder) Tsarenko & D.M.John 2011
- Species:Acutodesmus dimorphus (Turpin) P.M.Tsarenko 2001
- Species:Acutodesmus incrassatulus (Bohlin) Tsarenko 2001
- Species:Acutodesmus javanensis (Chodat) Tsarenko 2011
- Species:Acutodesmus obliquus (Turpin) Hegewald & Hanagata 2000
- Species:Acutodesmus pectinatus (Meyen) Tsarenko 2001
- Species:Acutodesmus pectinatus var. bernardii (G.M.Smith) Tsarenko 2001
- Species:Acutodesmus regularis (Svirenko) Tsarenko 2001
- Species:Akashiwo sanguinea (K.Hirasaka) G.Hansen et Moestrup
- Species:Alexandrium minutum Halim
- Species:Alexandrium ostenfeldii (Paulsen) Balech et Tangen
- Species:Alexandrium pseudogonyaulax (Biecheler) Horiguchi ex K.Yuki & Y.Fukuyo 1992
- Species:Alexandrium tamarense (Lebour) Balech
- Species:Alexandrium tamiyavanichii Balech 1994
- Species:Amorphonostoc paludosum (Kützing ex Bornet & Flahault) Elenkin 1936
- Species:Amorphonostoc paludosum f longius Kossinsk
- Species:Amorphonostoc punctiforme (Hariot) Elenkin 1936
- Species:Amphidinium aculeatum Schröder
- Species:Amphidinium acutissimum J.Schiller
- Species:Amphidinium acutum Lohmann 1920
- Species:Amphidinium amphidinioides (Geitler) J.Schiller
- Species:Amphidinium conradii J.Schiller 1932
- Species:Amphidinium crassum Lohmann
- Species:Amphidinium cucurbita Kofoid et Swezy
- Species:Amphidinium curvatum Schiller
- Species:Amphidinium elenkinii Skvortzov
- Species:Amphidinium extensum Wulff
- Species:Amphidinium flagellans Schiller
- Species:Amphidinium fusiforme G.W.Martin 1928
- Species:Amphidinium globosum Schröder
- Species:Amphidinium inflatum Kofoid 1931
- Species:Amphidinium klebsii Kofoid & Swezy
- Species:Amphidinium klebsii f. minus Kiselev
- Species:Amphidinium klebsii f. ponticum Roukhiyajnen
- Species:Amphidinium lacunarum Skuja 1964
- Species:Amphidinium lacustre F.Stein
- Species:Amphidinium lanceolatum Schröder
- Species:Amphidinium larvale Er.Lindemann 1928
- Species:Amphidinium longum Lohmann
- Species:Amphidinium luteum Skuja
- Species:Amphidinium operculatum Claparède et Lachmann
- Species:Amphidinium operculatum f. minutum (Massart) Litvinenko 1977
- Species:Amphidinium ovum Herdman
- Species:Amphidinium phaeocysticola Lebour
- Species:Amphidinium rhynchocephalum Anissimowa
- Species:Amphidinium rostratum Proshkina-Lavrenko
- Species:Amphidinium sphagnicola Conrad 1943
- Species:Amphidinium sphenoides Wulff
- Species:Amphidinium turbo Kofoid & Swezy
- Species:Amphidinium turicense Huber-Pestalozzi 1950
- Species:Amphidinium vigrense Woloszynska 1925
- Species:Amphidinium wigrense Woloszynska 1925
- Species:Amphipleura pellucida (Kützing) Kützing
- Species:Amphipleura rutilans (Trentepohl ex Roth) Cleve
- Species:Amphiprora alata (Ehrenberg) Kützing
- Species:Amphiprora paludosa W.Smith
- Species:Amphirhiza epizootica Skuja 1948
- Species:Amphitetras antediluviana Ehrenberg
- Species:Amphora angularis W.Gregory 1855
- Species:Amphora angularis var. delicatula A.I.Proshkina-Lavrenko
- Species:Amphora angusta W.Gregory
- Species:Amphora bigibba Grunow 1875
- Species:Amphora caroliniana Giffen 1980
- Species:Amphora coffaeiformis (C.Agardh) Kützing
- Species:Amphora copulata (Kützing) Schoeman & R.E.M.Archibald
- Species:Amphora costata W.Smith
- Species:Amphora crassa W.Gregory
- Species:Amphora granulata W.Gregory 1857
- Species:Amphora granulata var. costata Proshkina-Lavrenko
- Species:Amphora granulata var. punctata Proshkina-Lavrenko
- Species:Amphora hyalina Kützing
- Species:Amphora hyalina var. delicatula Proshkina-Lavrenko
- Species:Amphora hyalina var. ovalis Kutzing 1844
- Species:Amphora hyalina var. pediculus f. nebulosa Proshkina-Lavrenko 1963
- Species:Amphora inariensis Krammer
- Species:Amphora inflexa (Brébisson ex Kützing) H.L.Smith
- Species:Amphora insecta Grunow ex A.Schmidt
- Species:Amphora marina W.Smith
- Species:Amphora ostrearia Brébisson ex Kützing
- Species:Amphora ovalis (Kützing) Kützing
- Species:Amphora pediculus (Kützing) Grunow
- Species:Amphora proteus W.Gregory 1857
- Species:Amphora proteus var. oculata H.Peragallo
- Species:Amylax triacantha (Jörgensen) Sournia
- Species:Anabaena abnormis Proskina-Lavrenko & Makarova 1968
- Species:Anabaena aequalis O.Borge 1906
- Species:Anabaena affinis Lemmermann 1898
- Species:Anabaena aphanizomenoides Forti 1911
- Species:Anabaena augstumalis Schmidle 1900
- Species:Anabaena bergii Ostenfeld
- Species:Anabaena bergii f. minor (Kiselev) Elenkin
- Species:Anabaena catenula Kützing ex Bornet & Flahault 1886
- Species:Anabaena circinalis Rabenhorst ex Bornet & Flahault 1886
- Species:Anabaena constricta (Szafer) Geitler 1925
- Species:Anabaena cylindrica Lemmermann
- Species:Anabaena flos-aquae Brébisson ex Bornet & Flauhault
- Species:Anabaena flos-aquae f. aptekariana Elenkin 1938
- Species:Anabaena flos-aquae f. intermedia (Woronichin) Elenkin 1938
- Species:Anabaena hassallii Wittrock ex Lemmermann 1907
- Species:Anabaena inaequalis Bornet & Flahault 1886
- Species:Anabaena kisseleviana Elenkin
- Species:Anabaena kisselevii Proshkina-Lavrenko 1968
- Species:Anabaena knipowitschii Usachev
- Species:Anabaena laxa A.Braun 1886
- Species:Anabaena lemmermannii P.G.Richter 1903
- Species:Anabaena oscillarioides Bory ex Bornet & Flahault
- Species:Anabaena oscillarioides f. stenospora (Bornet & Flahault) Elenkin 1938
- Species:Anabaena planctonica Brunnthaler 1903
- Species:Anabaena scheremetieviae Elenkin
- Species:Anabaena scheremetievii f. macrosporoides (Troitzkaya) Elenkin
- Species:Anabaena solicola Kondrateva
- Species:Anabaena sphaerica Bornet & Flahault 1886
- Species:Anabaena sphaerica f. conoidea Elenkin 1938
- Species:Anabaena spiroides Klebahn
- Species:Anabaena spiroides f. contracta (Klebahn) Elenkin 1938
- Species:Anabaena spiroides var. contracta Klebahn 1895
- Species:Anabaena subcylindrica Borge 1921
- Species:Anabaena ucrainica (Schkorbatow) M.Watanabe 1996
- Species:Anabaena variabilis Kützing ex Bornet & Flahault 1886
- Species:Anabaenopsis arnoldii Aptekar
- Species:Anabaenopsis circularis (G.S.West) V.V.Miller 1923
- Species:Anabaenopsis elenkinii Kisselev
- Species:Anabaenopsis elenkinii V.V.Miller
- Species:Anabaenopsis nadsonii Woronichin 1929
- Species:Anabaenopsis raciborskii Wołoszyńska 1912
- Species:Anabaenopsis seriata Prescott 1955
- Species:Anacanthoica acanthos (Schiller) Deflandre
- Species:Anagnostidinema amphibium (C.Agardh ex Gomont) Strunecký, Bohunická, J.R.Johansen & J.Komárek
- Species:Aneumastus tusculus (Ehrenberg) D.G.Mann & A.J.Stickle 1990
- Species:Aneumatus tusculus (Ehrenberg) D.G. Mann et Stickle
- Species:Anisonema acinus f. grande (Stein) Popova et Androssova
- Species:Anisonema decoloratum Roukhiyajnen 1971
- Species:Anisonema grande F.Stein
- Species:Ankistrodesmus acicularis (Braun) Korshikov
- Species:Ankistrodesmus acicularis var. mirabilis (West & G.S.West) Korshikov
- Species:Ankistrodesmus angustus C.Bernard
- Species:Ankistrodesmus arcuatus Korshikov
- Species:Ankistrodesmus bibraianus (Reinsch) Korshikov
- Species:Ankistrodesmus braunii (Nägeli) Lemmermann
- Species:Ankistrodesmus convolutus Corda
- Species:Ankistrodesmus falcatus (Corda) Ralfs
- Species:Ankistrodesmus fusiformis Corda
- Species:Ankistrodesmus longissimus (Lemmermann) Wille 1909
- Species:Ankistrodesmus longissimus var. acicularis (Chodat) Brunthaler
- Species:Ankistrodesmus pseudomirabilis Korshikov
- Species:Ankistrodesmus pseudomirabilis var. spiralis Korshikov 1953
- Species:Ankistrodesmus spiralis (W.B.Turner) Lemmermann 1908
- Species:Ankyra judayi (G.M.Smith) Fott 1957
- Species:Ankyra ocellata (Korshikov) Fott 1957
- Species:Anomoeoneis sphaerophora Pfitzer
- Species:Apedinella radians (Lohmann) P.H.Campbell 1973
- Species:Apedinella spinifera (Throndsen) Throndsen
- Species:Aphanizomenon elenkinii Kisselev 1951
- Species:Aphanizomenon flosaquae Ralfs ex Bornet et Flahault
- Species:Aphanizomenon issatschenkoi (Usachev) Proshkina-Lavrenko 1968
- Species:Aphanizomenon ovalisporum Forti
- Species:Aphanocapsa conferta (West & G.S.West) Komárková-Legnerová & Cronberg 1994
- Species:Aphanocapsa elachista West & G.S.West 1894
- Species:Aphanocapsa grevillei (Berkeley) Rabenhorst 1865
- Species:Aphanocapsa holsatica (Lemmermann) G.Cronberg & Komárek 1994
- Species:Aphanocapsa incerta (Lemmermann) G.Cronberg & Komárek 1994
- Species:Aphanocapsa nubila Komárek & H.J.Kling 1991
- Species:Aphanocapsa parasitica (Kützing) Komárek & Anagnostidis 1995
- Species:Aphanocapsa planctonica (G.M.Smith) Komárek & Anagnostidis 1995
- Species:Aphanocapsa pulvera (H.C.Wood) Kovalik
- Species:Aphanocapsa rivularis (Carmichael) Rabenhorst 1865
- Species:Aphanocapsa salina Woronichin
- Species:Aphanothece bachmannii Komárková-Legnerová & G.Cronberg
- Species:Aphanothece castagnei (Kützing) Rabenhorst 1865
- Species:Aphanothece clathrata West & G.S.West 1906
- Species:Aphanothece clathrata f. brevis (Bachmann) Elenkin
- Species:Aphanothece elabens (Brébisson ex Meneghini) Elenkin 1938
- Species:Aphanothece endophytica (West & G.S.West) Komárková-Legnerová & Cronberg 1994
- Species:Aphanothece microscopica Nägeli 1849
- Species:Aphanothece minutissima (West) J.Komárková-Legnerová & G.Cronberg 1994
- Species:Aphanothece nidulans P.Richter 1884
- Species:Aphanothece salina Elenkin & A.N.Danilov 1915
- Species:Aphanothece smithii Komárková-Legnerová & G.Cronberg 1994
- Species:Aphanothece stagnina (Sprengel) A.Braun 1863
- Species:Aphanothece utahensis Tilden
- Species:Apocalathium aciculiferum (Lemmermann) Craveiro, Daugbjerg, Moestrup et Calado
- Species:Archaeperidinium minutum (Kofoid) Jørgensen
- Species:Ardissonea crystallina (C.Agardh) Grunow
- Species:Ardissonea fulgens (Greville) Grunow 1880
- Species:Ardissonea robusta (Ralfs ex Pritchard) De Notaris
- Species:Arthrospira jenneri Stizenberger ex Gomont
- Species:Asterionella formosa Hassall
- Species:Asterionella formosa var. gracillima (Hanztsch) Grunow
- Species:Asterionella gracillima (Hantzsch) Heiberg
- Species:Asterionella japonica Cleve
- Species:Asterionellopsis glacialis (Castracane) Round
- Species:Asteromphalus flabellatus (Brébisson) Greville
- Species:Asteromphalus heptactis (Brébisson) Ralfs
- Species:Asteromphalus robustus Castracane
- Species:Attheya decora T.West 1860
- Species:Attheya septentrionalis (Østrup) R.M.Crawford
- Species:Aulacoseira ambigua (Grunow) Simonsen
- Species:Aulacoseira distans (Ehrenberg) Simonsen
- Species:Aulacoseira granulata (Ehrenberg) Simonsen
- Species:Aulacoseira granulata f. curvata (Hustedt) Simonsen 1979
- Species:Aulacoseira granulata var. angustissima (O.Müller) Simonsen
- Species:Aulacoseira islandica (Otto Müller) Simonsen
- Species:Aulacoseira italica (Ehrenberg) Simonsen
- Species:Aulacoseira italica var. tenuissima (Grunow) Simonsen
- Species:Aulosira implexa Bornet & Flahault 1886
- Species:Aulosira planctonica Elenkin 1922
- Species:Aurosphaera echinata J.Schiller
- Species:Azadinium spinosum Elbrächter
- Species:Bacillaria paradoxa J.F.Gmelin
- Species:Bacillaria paxillifera (O.F.Müller) T.Marsson
- Species:Bacillaria socialis (W.Gregory) Ralfs 1861
- Species:Bacillaria socialis var. baltica (Grunow) De Toni 1892
- Species:Bacteriastrum delicatulum Cleve
- Species:Bacteriastrum hyalinum Lauder
- Species:Bacularia vermicularis Komárek & Anagnostidis 1995
- Species:Bellerochea malleus (Brightwell) Van Heurck
- Species:Belonastrum berolinense (Lemmermann) Round et Maidana
- Species:Berkeleya rutilans (Trentepohl ex Roth) Grunow
- Species:Bernardinium bernardinense Chodat
- Species:Biddulphia alternans (Bailey) Van Heurck
- Species:Biddulphia laevis Ehrenberg
- Species:Biddulphia mobiliensis (J.W.Bailey) Grunow
- Species:Biddulphia rhombus (Ehrenberg) W.Smith
- Species:Biddulphia rostrata var. alata A.I.Proshkina-Lavrenko
- Species:Biecheleria ordinata (Skuja) Moestrup 2018
- Species:Biecheleria pseudopalustris (J.Schiller) Moestrup, K.Lindberg
- Species:Binuclearia lauterbornii (Schmidle) Proschkina-Lavrenko 1966
- Species:Borghiella dodgei Moestrup, Gert Hansen & Daugberg
- Species:Borghiella tenuissima (Lauterborn) Moestrup, Gert Hansen
- Species:Botryococcus braunii Kützing
- Species:Botryococcus terribilis Komárek & Marvan
- Species:Braarudosphaera bigelowii (Gran et Braarud) Deflandre
- Species:Brebissonia lanceolata (C.Agardh) R.K.Mahoney & Reimer
- Species:Calcidiscus leptoporus (G.Murray & V.H.Blackman) Loeblich Jr. & Tappan
- Species:Calciosolenia granii var. cylindrotheciformis J.Schiller
- Species:Caloneis amphisbaena (Bory) Cleve
- Species:Caloneis bacillum (Grunow) Cleve
- Species:Caloneis liber (W.Smith) Cleve
- Species:Caloneis liber var. linearis Cleve
- Species:Caloneis musca (W.Gregory) Cleve
- Species:Caloneis silicula (Ehrenberg) Cleve 1894
- Species:Calothrix braunii Bornet & Flahault 1886
- Species:Calothrix brevissima G.S.West 1907
- Species:Calothrix dnieprensis Kondrateva 1968
- Species:Calothrix elenkinii Kossinskaja
- Species:Calothrix fasciculata C.Agardh ex Bornet & Flahault 1886
- Species:Calothrix fusca Bornet
- Species:Calothrix gypsophila (Bornet & Flahault) Wolle 1877
- Species:Calothrix intricata F.E.Fritsch 1912
- Species:Calothrix scytonemicola Tilden 1910
- Species:Calothrix stagnalis Gomont 1895
- Species:Calyptrosphaera dalmatica Schiller
- Species:Calyptrosphaera incisa J.Schiller
- Species:Calyptrosphaera insignis J.Schiller
- Species:Calyptrosphaera oblonga Lohmann
- Species:Calyptrosphaera pelagicus (Wallich) Schill., 1930
- Species:Calyptrosphaera sphaeroidea Schiller
- Species:Campylodiscus clypeus (Ehrenberg) Ehrenberg ex Kützing 1844
- Species:Campylodiscus decorus Brébisson 1854
- Species:Campylodiscus echeneis Ehrenberg ex Kützing
- Species:Campylodiscus fastuosus Ehrenberg
- Species:Campylodiscus parvulus W.Smith
- Species:Campylodiscus thuretii Brébisson
- Species:Campylodiscus thuretii var. lineolatus Pr.-Lavrenko
- Species:Caneosphaera molischii (Schiller) Gaarder, nom. inval.
- Species:Carinasigma rectum (Donkin) G.Reid
- Species:Carteria acuta J.Schiller
- Species:Carteria crassifilis J.Schiller
- Species:Carteria cylindracea J.Schiller
- Species:Carteria wettsteinii J.Schiller 1913
- Species:Catacombas gaillonii (Bory) D.M.Williams et Round
- Species:Cavinula cocconeiformis (W.Gregory ex Greville) D.G.Mann & A.J.Stickle
- Species:Centritractus belonophorus (Schmidle) Lemmermann
- Species:Cerataulina bergonii (H.Peragallo) F.Schütt
- Species:Cerataulina pelagica (Cleve) Hendey
- Species:Cerataulina velifera Mereschkowsky
- Species:Cerataulus turgidus (Ehrenberg) Ehrenberg
- Species:Ceratium arietinum var. bucephalum (Cleve) Sournia
- Species:Ceratium bucephalum (Cleve) Cleve 1900
- Species:Ceratium candelabrum (Ehrenberg) F.Stein
- Species:Ceratium carolinianum (Bailey) L.Maggi
- Species:Ceratium carolinianum var. elongatum Skuja
- Species:Ceratium cornutum (Ehrenberg) Claparède & J.Lachmann
- Species:Ceratium curvirostre Huitfeld-Kaas 1901
- Species:Ceratium dens Ostenfeld & J.Schmidt 1901
- Species:Ceratium divergens (Ehrenberg) Claparède
- Species:Ceratium extensum (Gourret) A.Cleve
- Species:Ceratium falcatum (Kofoid) Jörgensen
- Species:Ceratium furca (Ehrenberg) Claparède & Lachmann
- Species:Ceratium furca var. berghii Lemmermann
- Species:Ceratium furca var. eugrammum (Ehrenberg) Schiller
- Species:Ceratium furcoides (Levander) Langhans
- Species:Ceratium fusus (Ehrenberg) Dujardin
- Species:Ceratium fusus var. schuettii Lemmermann 1899
- Species:Ceratium fusus var. seta (Ehrenberg) E.J.F.Wood
- Species:Ceratium hexacanthum Gourret
- Species:Ceratium hircus Schröder
- Species:Ceratium hirundinella (O.F.Müller) Dujardin
- Species:Ceratium hirundinella f. austriacum (Zederbauer) Bachmann
- Species:Ceratium hirundinella f. brachyceroides Schröder
- Species:Ceratium hirundinella f. carinthiacum (Zederbauer) Bachmann
- Species:Ceratium hirundinella f. furcoides (Levander) Huber
- Species:Ceratium hirundinella f. gracile Bachmann
- Species:Ceratium hirundinella f. piburgense (Zederbauer) Bachmann
- Species:Ceratium hirundinella f. robustum Amberg
- Species:Ceratium hirundinella f. silesiacum Schröder
- Species:Ceratium hirundinella var. furcoides Levander
- Species:Ceratium horridum (Cleve) Gran