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WoRMS taxon details

Checked: verified by a taxonomic editorCosmarium Corda ex Ralfs, 1848 
AphiaID: 478557

Classification: Biota > Checked: verified by a taxonomic editorPlantae (Kingdom) > Checked: verified by a taxonomic editorCharophyta (Phylum) > Unreviewed: has not been verified by a taxonomic editorZygnematophyceae (Class) > Checked: verified by a taxonomic editorZygnematales (Order) > Checked: verified by a taxonomic editorDesmidiaceae (Family)
Status accepted
Rank Genus
Parent Checked: verified by a taxonomic editorDesmidiaceae Ralfs, 1848
Synonymised
names
  Checked: verified by a taxonomic editorCalocylindrus (C.Nägeli) O.Kirchner, 1878 (synonym)
Checked: verified by a taxonomic editorNothocosmarium Raciborski, 1889
Source  basis of record Algaebase, available online at http://www.algaebase.org [details]

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Species Checked: verified by a taxonomic editorCosmarium abbreviatum Raciborski, 1885
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium abbreviatum var. germanicum (Raciborski) Willi Krieger & Gerloff
» Variety Checked: verified by a taxonomic editorCosmarium abbreviatum var. minus (West & G.S.West) Willi Krieger & Gerloff, 1969
» Forma Checked: verified by a taxonomic editorCosmarium abbreviatum f. minor West & G.S.West, 1900 accepted as Checked: verified by a taxonomic editorCosmarium abbreviatum var. minus (West & G.S.West) Willi Krieger & Gerloff, 1969
» Forma Checked: verified by a taxonomic editorCosmarium abbreviatum f. pygmaeum Messikommer accepted as Unreviewed: has not been verified by a taxonomic editorCosmarium abbreviatum var. germanicum (Raciborski) Willi Krieger & Gerloff
» Variety Checked: verified by a taxonomic editorCosmarium abbreviatum var. planctonicum West & G.S West, 1905 accepted as Checked: verified by a taxonomic editorCosmarium depressum var. planctonicum Reverdin, 1919
Species Checked: verified by a taxonomic editorCosmarium abruptum P.Lundell, 1871
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium abruptum var. brevius (West & G.S.West) West & G.S.West
» Variety Checked: verified by a taxonomic editorCosmarium abruptum var. granulatum West & G.S.West
» Variety Checked: verified by a taxonomic editorCosmarium abruptum var. simplex Insam & Krieger, 1936
» Forma Checked: verified by a taxonomic editorCosmarium abruptum f. maius Huber-Pestalozzi, 1935 accepted as Checked: verified by a taxonomic editorClosterium abruptum var. maius (Huber-Pestalozzi) Willi Krieger, 1935
Species Unreviewed: has not been verified by a taxonomic editorCosmarium abscissum Lutkem
Species Checked: verified by a taxonomic editorCosmarium achondroides G.S.West
Species Checked: verified by a taxonomic editorCosmarium acutangulum Insam & Krieger, 1936
Species Checked: verified by a taxonomic editorCosmarium acutigonum D.B.Williamson, 1999
Species Unreviewed: has not been verified by a taxonomic editorCosmarium adelochondrum
  » Variety Checked: verified by a taxonomic editorCosmarium adelochondrum var. kriegeri Messikommer, 1942 accepted as Checked: verified by a taxonomic editorActinotaenium kriegeri (Messikommer) Kouwets, 1997
Species Checked: verified by a taxonomic editorCosmarium adoxum West & G.S.West, 1897
  » Variety Checked: verified by a taxonomic editorCosmarium adoxum var. denticulatum G.S.West
Species Checked: verified by a taxonomic editorCosmarium affine Raciborski
  » Variety Checked: verified by a taxonomic editorCosmarium affine var. excavatum G.S.West
Species Checked: verified by a taxonomic editorCosmarium alpestre J.Roy & Bisset, 1893
  » Variety Checked: verified by a taxonomic editorCosmarium alpestre var. depressum (V.Allorge & P.Allorge) Krieger & Gerloff, 1969
» Forma Checked: verified by a taxonomic editorCosmarium alpestre f. depressa V.Allorge & P.Allorge, 1930 accepted as Checked: verified by a taxonomic editorCosmarium alpestre var. depressum (V.Allorge & P.Allorge) Krieger & Gerloff, 1969
Species Unreviewed: has not been verified by a taxonomic editorCosmarium alpicolum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium alpigenum Messikommer, 1942
  » Variety Checked: verified by a taxonomic editorCosmarium alpigenum var. gaviense Dell'Uomo, 1980
Species Unreviewed: has not been verified by a taxonomic editorCosmarium alpinum Raciborski
Species Checked: verified by a taxonomic editorCosmarium amoenum Brébisson ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium amoenum var. constrictum Scott & Grönblad
» Variety Checked: verified by a taxonomic editorCosmarium amoenum var. intumescens Nordstedt, 1887
» Variety Checked: verified by a taxonomic editorCosmarium amoenum var. mediolaeve Nordstedt, 1887
Species Checked: verified by a taxonomic editorCosmarium amplum Nordstedt, 1887
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium amplum f. trigonum Nordstedt, 1888
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium amplum var. ciastoni (Raciborski) Playfair
Species Checked: verified by a taxonomic editorCosmarium anceps P.Lundell, 1871
  » Forma Checked: verified by a taxonomic editorCosmarium anceps f. arcticum Croasdale, 1973
» Forma Unreviewed: has not been verified by a taxonomic editorCosmarium anceps f. crispula Nordstedt, 1873
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium anceps var. borgei (Wille Krieger) Ruzicka
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium anceps var. crispulum (Nordstedt) Willi Krieger & Gerloff, 1965
» Variety Checked: verified by a taxonomic editorCosmarium anceps var. minimum Gutwinski
» Variety Checked: verified by a taxonomic editorCosmarium anceps var. tatricoides West, 1912
Species Checked: verified by a taxonomic editorCosmarium andinum A.Couté & A.Iltis
Species Checked: verified by a taxonomic editorCosmarium angulare L.N.Johnson, 1894
  » Variety Checked: verified by a taxonomic editorCosmarium angulare var. octangulare Wade, 1957
Species Checked: verified by a taxonomic editorCosmarium angulatum (Perty) Rabenhorst, 1868
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium angulatum f. major (Grunow) Turner
» Variety Checked: verified by a taxonomic editorCosmarium angulatum var. conicum Playfair
» Variety Checked: verified by a taxonomic editorCosmarium angulatum var. subcucumis (Schmidle) Playfair accepted as Checked: verified by a taxonomic editorCosmarium subcucumis Schmidle, 1893
Species Checked: verified by a taxonomic editorCosmarium angulosum Brébisson, 1856
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium angulosum var. angulosum Brébisson, 1856
» Variety Checked: verified by a taxonomic editorCosmarium angulosum var. concinnum (Rabenhorst) West & G.S.West, 1901
» Variety Checked: verified by a taxonomic editorCosmarium angulosum var. euastroides (Delponte) Krieger & Gerloff
» Variety Checked: verified by a taxonomic editorCosmarium angulosum var. sorbiculatum Grönblad
Species Checked: verified by a taxonomic editorCosmarium anisochondrum Nordstedt, 1878
  » Variety Checked: verified by a taxonomic editorCosmarium anisochondrum var. confusum Playfair
Species Checked: verified by a taxonomic editorCosmarium annulatum (Nägeli) de Bary, 1849
  » Variety Checked: verified by a taxonomic editorCosmarium annulatum var. eIegans Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium apertiuscula Skuja
Species Checked: verified by a taxonomic editorCosmarium aphanichondrum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium arctoum Nordstedt, 1875
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium arctoum var. constrictum Gronblad & Scott, 1958
» Forma Checked: verified by a taxonomic editorCosmarium arctoum f. minus West, 1892 accepted as Checked: verified by a taxonomic editorCosmarium arctoum Nordstedt, 1875
» Variety Checked: verified by a taxonomic editorCosmarium arctoum var. tatricum Raciborski, 1885 accepted as Checked: verified by a taxonomic editorCosmarium bicuneatum (F.Gay) Nordstedt, 1889
Species Checked: verified by a taxonomic editorCosmarium arnellii Boldt, 1885
  » Forma Checked: verified by a taxonomic editorCosmarium arnellii f. compressum West, 1892
» Forma Checked: verified by a taxonomic editorCosmarium arnellii f. subrotundatum West, 1892
» Variety Checked: verified by a taxonomic editorCosmarium arnellii var. notatum R.Grönblad
Species Unreviewed: has not been verified by a taxonomic editorCosmarium arrense Kouwets, 1997
Species Checked: verified by a taxonomic editorCosmarium askenasyi Schmidle, 1895
  » Forma Checked: verified by a taxonomic editorCosmarium askenasyi f. latum A.M.Scott & Prescott
» Forma Checked: verified by a taxonomic editorCosmarium askenasyi f. undulatum J.A.Rino
» Variety Checked: verified by a taxonomic editorCosmarium askenasyi var. crateriforme Playfair accepted as Checked: verified by a taxonomic editorCosmarium askenasyi Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium asperum M.Dingley, 2004
Species Checked: verified by a taxonomic editorCosmarium asphaerosporum Wittrock, 1879
  » Variety Checked: verified by a taxonomic editorCosmarium asphaerosporum var. corribense (West & G.S.West) Willi Krieger & Gerloff, 1969
» Variety Checked: verified by a taxonomic editorCosmarium asphaerosporum var. productum Nordstedt, 1887
» Variety Checked: verified by a taxonomic editorCosmarium asphaerosporum var. strigosum Nordstedt, 1897
Species Checked: verified by a taxonomic editorCosmarium asterosporum Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium asymmetricum Rich, 1935
Species Checked: verified by a taxonomic editorCosmarium auriculatum Reinsch
Species Unreviewed: has not been verified by a taxonomic editorCosmarium australe
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium australe var. crassius (G.S West) Willi Kreiger & Gerloff
Species Checked: verified by a taxonomic editorCosmarium baileyi Wolle, 1884
Species Checked: verified by a taxonomic editorCosmarium basilicum G.S.West, 1899
Species Unreviewed: has not been verified by a taxonomic editorCosmarium basiornatum (Grönblad) Coesel
Species Checked: verified by a taxonomic editorCosmarium berryense Kouwets, 1998
Species Checked: verified by a taxonomic editorCosmarium bicuneatum (F.Gay) Nordstedt, 1889
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium bicuneatum var. tatricum (Raciborski) Schmidle, 1898
Species Checked: verified by a taxonomic editorCosmarium binerve P.Lundell
  » Variety Checked: verified by a taxonomic editorCosmarium binerve var. latum Krieger & Gerloff
Species Checked: verified by a taxonomic editorCosmarium binodulum Reinsch
Species Checked: verified by a taxonomic editorCosmarium binum Nordstedt, 1880
  » Variety Checked: verified by a taxonomic editorCosmarium binum var. australiensis Borge
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium binum var. fontense (Playfair) Playfair
Species Checked: verified by a taxonomic editorCosmarium bioculatum Brébisson ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. bioculatum Ralfs, 1848
» Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. boreale (Børgesen) Krieger & Gerloff
» Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. canadense Willi Krieger & Gerloff, 1962
» Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. depressum (Schaarschmidt) Schmidle, 1894
» Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. hians West & G.S.West, 1897
» Forma Checked: verified by a taxonomic editorCosmarium bioculatum f. depressa Schaarschmidt, 1883 accepted as Checked: verified by a taxonomic editorCosmarium bioculatum var. depressum (Schaarschmidt) Schmidle, 1894
» Variety Checked: verified by a taxonomic editorCosmarium bioculatum var. omphalum Schaarschmidt, 1883 accepted as Checked: verified by a taxonomic editorCosmarium phaseolus var. omphalum (Schaarschmidt) Raciborski, 1889
  » Forma Checked: verified by a taxonomic editorCosmarium bioculatum var. omphalum f. subquadrata West, 1891 accepted as Checked: verified by a taxonomic editorCosmarium phaseolus var. subquadratum (West) Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium bipapillatum (West) West & G.S.West, 1894
Species Checked: verified by a taxonomic editorCosmarium bipunctatum Børgesen, 1890
  » Forma Checked: verified by a taxonomic editorCosmarium bipunctatum f. subrectangularis West & G.S.West
» Variety Checked: verified by a taxonomic editorCosmarium bipunctatum var. unipapillatum Insam & Krieger
Species Checked: verified by a taxonomic editorCosmarium bireme Nordstedt, 1888
Species Checked: verified by a taxonomic editorCosmarium biretiforme G.S.West
Species Checked: verified by a taxonomic editorCosmarium biretum Brébisson ex Ralfs, 1848
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium biretum f. minor
» Variety Checked: verified by a taxonomic editorCosmarium biretum var. trigibberum Nordstedt, 1875
» Variety Checked: verified by a taxonomic editorCosmarium biretum var. minus Hansgirg, 1888 accepted as Checked: verified by a taxonomic editorCosmarium biretum Brébisson ex Ralfs, 1848
» Variety Checked: verified by a taxonomic editorCosmarium biretum var. triquetrum Brebisson, 1856 accepted as Checked: verified by a taxonomic editorCosmarium biretum Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium biscarrossense Capdevielle, 1983
Species Checked: verified by a taxonomic editorCosmarium bisphaericum Printz
Species Checked: verified by a taxonomic editorCosmarium bitriangulum Grönblad, 1945
  » Variety Checked: verified by a taxonomic editorCosmarium bitriangulum var. bitrapezoidale Willi Krieger & Gerloff, 1969
Species Unreviewed: has not been verified by a taxonomic editorCosmarium blytii
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium blytii var. bipunctatum (Dick) Ruzicka
Species Checked: verified by a taxonomic editorCosmarium blyttii Wille, 1880
  » Forma Checked: verified by a taxonomic editorCosmarium blyttii f. australiacum Schmidle, 1896
» Forma Checked: verified by a taxonomic editorCosmarium blyttii f. australica Schmidle
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium blyttii var. blyttii
  » Forma Checked: verified by a taxonomic editorCosmarium blyttii var. blyttii f. tristriatum Lütkemuller, 1893 † accepted as Checked: verified by a taxonomic editorCosmarium sexnotatum var. tristriatum (Lütkemuller) Schmidle, 1895
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. casinoense Playfair
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. lismorense Playfair
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. novae-sylvae West & G.S.West, 1897
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. quaternigranulatum Scott ex Croasdale
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. richmondiae Playfair
» Forma Checked: verified by a taxonomic editorCosmarium blyttii f. bipunctatum J.Dick accepted as Checked: verified by a taxonomic editorCosmarium dickii Coesel, 1989
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. bipunctata (Dick) Ruzicka accepted as Checked: verified by a taxonomic editorCosmarium dickii Coesel, 1989
» Variety Checked: verified by a taxonomic editorCosmarium blyttii var. bipunctatum (Dick) Rzicka accepted as Checked: verified by a taxonomic editorCosmarium dickii Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium boeckii Wille, 1880
  » Variety Checked: verified by a taxonomic editorCosmarium boeckii var. boeckii Wille, 1880
» Variety Checked: verified by a taxonomic editorCosmarium boeckii var. imperfectum Playfair
» Variety Checked: verified by a taxonomic editorCosmarium boeckii var. trifoliatum Playfair
» Subspecies Checked: verified by a taxonomic editorCosmarium boeckii bipapillatum West, 1892 accepted as Checked: verified by a taxonomic editorCosmarium bipapillatum (West) West & G.S.West, 1894
» Variety Checked: verified by a taxonomic editorCosmarium boeckii var. isthmolaeve Skuja ex Kouwets, 1976 accepted as Checked: verified by a taxonomic editorCosmarium limnophilum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium boitierense Kouwets, 1998
  » Variety Checked: verified by a taxonomic editorCosmarium boitierense var. inambitiosum Kouwets, 1998
Species Checked: verified by a taxonomic editorCosmarium boldtianum Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium botrytis Meneghini ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium botrytis var. dayense A.Couté & A.Dehbi-Zebboudj
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. depressum West & G.S.West, 1905
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. emarginatum Hansgirg, 1888
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. gemmiferum (Brébisson) Nordstedt, 1888
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium botrytis var. glabrum
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium botrytis var. granulatum
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium botrytis var. mamillatum
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. mediolaeve West, 1892
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. mesoleium Nordstedt
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. paxillosporum West & G.S.West, 1912
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium botrytis var. squamosum
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. subtumidum Wittrock, 1872
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. tumidum Wolle, 1884
» Variety Checked: verified by a taxonomic editorCosmarium botrytis var. janoviense Gutwinski, 1890 accepted as Checked: verified by a taxonomic editorCosmarium hornavanense var. janoviense (Gutwinski) Ruzicka, 1949
Species Unreviewed: has not been verified by a taxonomic editorCosmarium brasiliense
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium brasiliense var. brasiliense Nordstedt, 1887
» Variety Checked: verified by a taxonomic editorCosmarium brasiliense var. taphrosporum Nordstedt, 1887
» Variety Checked: verified by a taxonomic editorCosmarium brasiliense var. ordinatum Børgesen, 1890 accepted as Checked: verified by a taxonomic editorCosmarium ordinatum (Børgesen) West & G.S.West, 1896
Species Checked: verified by a taxonomic editorCosmarium braunii Reinsch, 1866
  » Variety Checked: verified by a taxonomic editorCosmarium braunii var. pseudoregnellii Messikommer, 1929 accepted as Checked: verified by a taxonomic editorCosmarium regnellii var. pseudoregnellii (Messikommer) Willi Krieger & Gerloff, 1944
Species Checked: verified by a taxonomic editorCosmarium brebissonii Meneghini ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium brebissonii var. major Huber-Pestalozzi, 1918 accepted as Checked: verified by a taxonomic editorCylindrocystis brebissonii (Ralfs) de Bary, 1858
Species Checked: verified by a taxonomic editorCosmarium broomei Thwaites ex Ralfs, 1848
  » Forma Checked: verified by a taxonomic editorCosmarium broomei f. minus U.C.Pandey & D.C.Pandey
» Variety Checked: verified by a taxonomic editorCosmarium broomei var. obliqua Wille
Species Checked: verified by a taxonomic editorCosmarium burkillii West & G.S.West
  » Variety Checked: verified by a taxonomic editorCosmarium burkillii var. depressum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium caelatum Ralfs, 1848
  » Forma Checked: verified by a taxonomic editorCosmarium caelatum f. elongata F.Gay, 1892
» Variety Checked: verified by a taxonomic editorCosmarium caelatum var. bohemicum Raciborski, 1889
» Variety Checked: verified by a taxonomic editorCosmarium caelatum var. hexagonum West, 1890
» Variety Checked: verified by a taxonomic editorCosmarium caelatum var. nasutum Insam & Krieger, 1936
» Variety Checked: verified by a taxonomic editorCosmarium caelatum var. spectabile (De Notaris) Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium calcareum Wittrock, 1872
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium calcareum var. spetsbergense (O.Borge) Kurt Först., 1972
Species Checked: verified by a taxonomic editorCosmarium calculus Coesel, 2007
Species Checked: verified by a taxonomic editorCosmarium callosissimum A.M.Scott & Grönblad
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium callosissimum var. callosissimum
Species Unreviewed: has not been verified by a taxonomic editorCosmarium calodermum (Gay) de Toni
Species Checked: verified by a taxonomic editorCosmarium cambricum Cooke & Wills
Species Checked: verified by a taxonomic editorCosmarium canaliculatum West & G.S.West, 1896
Species Checked: verified by a taxonomic editorCosmarium candianum Delponte, 1877
Species Checked: verified by a taxonomic editorCosmarium capitulum J.Roy & Bissett, 1886
  » Variety Checked: verified by a taxonomic editorCosmarium capitulum var. australe G.S.West
» Variety Checked: verified by a taxonomic editorCosmarium capitulum var. groenlandicum Børgesen, 1894
» Variety Checked: verified by a taxonomic editorCosmarium capitulum var. rectangula Raciborski
» Variety Checked: verified by a taxonomic editorCosmarium capitulum var. detritum Playfair, 1913 accepted as Checked: verified by a taxonomic editorCosmarium subcontractum West & G.S.West, 1905
Species Checked: verified by a taxonomic editorCosmarium carinthiacum Lütkemuller, 1942
Species Checked: verified by a taxonomic editorCosmarium centiculatum
Species Checked: verified by a taxonomic editorCosmarium ceylanicum West & G.S.West
  » Forma Checked: verified by a taxonomic editorCosmarium ceylanicum f. minus A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium cinctutum Nordstedt, 1875
Species Checked: verified by a taxonomic editorCosmarium circulare Reinsch, 1867
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium circulare var. circulare
  » Forma Checked: verified by a taxonomic editorCosmarium circulare var. circulare f. minus West & G.S.West, 1905
» Variety Checked: verified by a taxonomic editorCosmarium circulare var. messikommeri Krieger & Gerloff, 1962
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium circulare var. minus Hansgirg
Species Checked: verified by a taxonomic editorCosmarium ciskeium D.B.Williamson
Species Checked: verified by a taxonomic editorCosmarium clepsydra Nordstedt, 1870
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium clepsydra var. bicardia (Reinsch) Croasdale, 1956
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium clepsydra var. delaunayi Manguin, 1936
» Variety Checked: verified by a taxonomic editorCosmarium clepsydra var. hoglandica Grönblad, 1960
Species Checked: verified by a taxonomic editorCosmarium clepsydra Delponte, 1877
Species Checked: verified by a taxonomic editorCosmarium coarctatum West, 1892
  » Variety Checked: verified by a taxonomic editorCosmarium coarctatum var. casaresii (V.Allorge & P.Allorge) Krieger & Gerloff, 1969
Species Checked: verified by a taxonomic editorCosmarium collectorense Playfair
Species Checked: verified by a taxonomic editorCosmarium commissurale Brébisson ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium commissurale var. acutum Brébisson, 1856
» Variety Checked: verified by a taxonomic editorCosmarium commissurale var. crassum Nordstedt, 1870
Species Checked: verified by a taxonomic editorCosmarium conglobatum Skvortzov & Noda
Species Checked: verified by a taxonomic editorCosmarium connatum Brébisson ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium connatum var. minus Wolle
» Variety Checked: verified by a taxonomic editorCosmarium connatum var. truncatum West, 1892
Species Checked: verified by a taxonomic editorCosmarium conspersum Ralfs, 1848
  » Forma Checked: verified by a taxonomic editorCosmarium conspersum f. dickiei Croasdale, 1973
» Variety Checked: verified by a taxonomic editorCosmarium conspersum var. latum (Brébisson) West & G.S.West, 1912
  » Forma Checked: verified by a taxonomic editorCosmarium conspersum var. latum f. parvum Croasdale, 1965
» Variety Checked: verified by a taxonomic editorCosmarium conspersum var. minus Raciborski, 1885
» Variety Checked: verified by a taxonomic editorCosmarium conspersum var. rotundatum Wittrock, 1869
» Variety Checked: verified by a taxonomic editorCosmarium conspersum var. scottii Croasdale
» Variety Checked: verified by a taxonomic editorCosmarium conspersum var. subrotundatum West, 1892
Species Checked: verified by a taxonomic editorCosmarium constrictum Delponte
  » Forma Checked: verified by a taxonomic editorCosmarium constrictum f. minor F.E.Fritsch & M.F.Rich
» Variety Checked: verified by a taxonomic editorCosmarium constrictum var. subdeplanatum (Schmidle) Krieger & Gerloff, 1965 accepted as Checked: verified by a taxonomic editorCosmarium subdeplanatum Schmidle, 1898
Species Checked: verified by a taxonomic editorCosmarium contractiforme Grönblad & Scott
Species Checked: verified by a taxonomic editorCosmarium contractum O.Kirchner, 1878
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium contractum f. ellipticum (A.M.Scott & Grönblad) Croasdale
» Forma Unreviewed: has not been verified by a taxonomic editorCosmarium contractum f. indentatum
» Forma Checked: verified by a taxonomic editorCosmarium contractum f. intermedia Playfair
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. contractum Kirchner, 1878
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. cracoviense Raciborski, 1885
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. ellipsoideum (Elfving) West & G.S.West, 1902
  » Forma Checked: verified by a taxonomic editorCosmarium contractum var. ellipsoideum f. interme Playfair
» Forma Checked: verified by a taxonomic editorCosmarium contractum var. ellipsoideum f. minor Raciborski accepted as Checked: verified by a taxonomic editorCosmarium contractum var. minutum (Delponte) Coesel, 1989
» Forma Checked: verified by a taxonomic editorCosmarium contractum var. ellipsoideum f. retusum West & G.S.West, 1905 accepted as Checked: verified by a taxonomic editorCosmarium contractum var. retusum (West & G.S.West) Willi Krieger & Gerloff, 1962
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. gartanense West & G.S.West, 1902
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. incrassatum A.M.Scott & Prescott, 1958
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. incrassatum Föster, 1963
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium contractum var. indentatum (Grönblad) Willi Krieger & Gerloff, 1962
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. maximum West & G.S.West
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. minutum (Delponte) Coesel, 1989
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium contractum var. notatum (Raciborski) Playfair
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. pachydermum A.M.Scott & Prescott
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. retusum (West & G.S.West) Willi Krieger & Gerloff, 1962
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. rotundatum Borge
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. subellipticum Playfair
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. subfoveatum Playfair
» Variety Checked: verified by a taxonomic editorCosmarium contractum var. subglobosum Förster, 1965
» Forma Checked: verified by a taxonomic editorCosmarium contractum f. jacobsenii (J.Roy) West & G.S.West accepted as Checked: verified by a taxonomic editorCosmarium contractum O.Kirchner, 1878
Species Checked: verified by a taxonomic editorCosmarium controversum West, 1890
Species Checked: verified by a taxonomic editorCosmarium corbula (Brébisson) Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium coronatum Wills, 1881
Species Checked: verified by a taxonomic editorCosmarium corriense Bisset, 1894
Species Checked: verified by a taxonomic editorCosmarium corsavaggense Skuja, 1964
Species Unreviewed: has not been verified by a taxonomic editorCosmarium cosmarioides (De Bary) J.Rzicka
Species Checked: verified by a taxonomic editorCosmarium costatum Nordstedt, 1875
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium costatum f. minus Boldt, 1888
» Variety Checked: verified by a taxonomic editorCosmarium costatum var. subhexalobum Boldt
Species Unreviewed: has not been verified by a taxonomic editorCosmarium crassangulatum Borge, 1894
  » Variety Checked: verified by a taxonomic editorCosmarium crassangulatum var. champesianum Ducellier
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium crassangulatum var. elliptiicum (Grönblad) Krieger & Gerloff
Species Unreviewed: has not been verified by a taxonomic editorCosmarium crassipelle
  » Forma Checked: verified by a taxonomic editorCosmarium crassipelle f. laterale E.A.Flint & D.B.Williamson, 1999
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium crassipelle var. champesianum (Ducellier) J.Rzicka
» Variety Checked: verified by a taxonomic editorCosmarium crassipelle var. monochrondrum D.B.Williamson, 1994
» Variety Checked: verified by a taxonomic editorCosmarium crassipelle var. noduliferum E.A.Flint & D.B.Williamson, 1998
Species Checked: verified by a taxonomic editorCosmarium crenatum Ralfs ex Ralfs, 1848
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium crenatum f. boltiana (Gutwinski) West & G.S.West, 1912
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium crenatum var. alpinum
» Variety Checked: verified by a taxonomic editorCosmarium crenatum var. bicrenatum Nordstedt, 1872
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium crenatum var. nanum
Species Checked: verified by a taxonomic editorCosmarium crenulatum Nägeli, 1849
Species Checked: verified by a taxonomic editorCosmarium crenulatum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium creperum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium cristatum Ralfs, 1848
Species Unreviewed: has not been verified by a taxonomic editorCosmarium cruciatum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium cucumis Corda ex Ralfs, 1848
  » Variety Checked: verified by a taxonomic editorCosmarium cucumis var. helveticum Nordstedt, 1880
» Variety Checked: verified by a taxonomic editorCosmarium cucumis var. magnum Raciborski, 1885
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cucumis var. polonicum
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium cucumis var. polonicum f. minor
Species Unreviewed: has not been verified by a taxonomic editorCosmarium cuneatum
  » Variety Checked: verified by a taxonomic editorCosmarium cuneatum var. verrucosum Y.-X.Wei
Species Checked: verified by a taxonomic editorCosmarium cupiforme D.B.Williamson, 1999
Species Unreviewed: has not been verified by a taxonomic editorCosmarium curcurbita
  » Forma Checked: verified by a taxonomic editorCosmarium curcurbita f. maior West, 1892 accepted as Checked: verified by a taxonomic editorActinotaenium cucurbita (Brébisson ex Ralfs) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium cyclicum P.Lundell, 1871
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cyclicum var. ampliatum Maskell, 1883
» Variety Checked: verified by a taxonomic editorCosmarium cyclicum var. angulatum West, 1889
» Variety Checked: verified by a taxonomic editorCosmarium cyclicum var. arcticum (Nordstedt) West & G.S.West, 1905
» Variety Checked: verified by a taxonomic editorCosmarium cyclicum var. nordstedtianum (Reinsch) West & G.S.West, 1905
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cyclicum var. subtruncatum
» Subspecies Checked: verified by a taxonomic editorCosmarium cyclicum arcticum Nordstedt, 1872 accepted as Checked: verified by a taxonomic editorCosmarium cyclicum var. arcticum (Nordstedt) West & G.S.West, 1905
Species Checked: verified by a taxonomic editorCosmarium cyclindricum Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium cyclops F.A.C.Kouwets, 2001
Species Checked: verified by a taxonomic editorCosmarium cylindricoideum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium cylindricum Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium cymatium (West & G.S.West) Willi Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium cymatonotophorum West, 1892
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cymatonotophorum var. granulatum Gronblad
Species Checked: verified by a taxonomic editorCosmarium cymatopleurum Nordstedt, 1872
  » Forma Checked: verified by a taxonomic editorCosmarium cymatopleurum f. minus Kurz
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cymatopleurum var. archerii (Roy & Biss) West & G.S.West, 1900
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium cymatopleurum var. cymatopleurum
» Variety Checked: verified by a taxonomic editorCosmarium cymatopleurum var. minus A.Kurz
» Variety Checked: verified by a taxonomic editorCosmarium cymatopleurum var. tyrolicum Nordstedt, 1876 accepted as Checked: verified by a taxonomic editorCosmarium tyrolicum (Nordstedt) Willi Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium davidsonii J.Roy & Bissett, 1893
Species Checked: verified by a taxonomic editorCosmarium debaryi W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium decedens (Reinsch) Raciborski, 1889
  » Variety Checked: verified by a taxonomic editorCosmarium decedens var. apertum Willi Krieger & Gerloff, 1965
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium decedens var. carpaticum
» Variety Checked: verified by a taxonomic editorCosmarium decedens var. minutum (Gutwinski) Krieger & Gerloff, 1965
» Variety Checked: verified by a taxonomic editorCosmarium decedens var. sinuosum (P.Lundell) Raciborski, 1889
» Forma Checked: verified by a taxonomic editorCosmarium decedens f. minor Skuja, 1928 accepted as Checked: verified by a taxonomic editorCosmarium decedens var. minutum (Gutwinski) Krieger & Gerloff, 1965
» Variety Checked: verified by a taxonomic editorCosmarium decedens var. decedens Raciborski, 1889 accepted as Checked: verified by a taxonomic editorCosmarium decedens (Reinsch) Raciborski, 1889
Species Checked: verified by a taxonomic editorCosmarium decoratum West & G.S.West
Species Unreviewed: has not been verified by a taxonomic editorCosmarium decorum (F.Gay) de Toni
Species Unreviewed: has not been verified by a taxonomic editorCosmarium decussiferum
  » Variety Checked: verified by a taxonomic editorCosmarium decussiferum var. medionudum P.Bourrelly & A.Couté
Species Unreviewed: has not been verified by a taxonomic editorCosmarium demangeonii Mougeot, 1887
Species Checked: verified by a taxonomic editorCosmarium denboeri Meesters & Coesel, 2007
Species Unreviewed: has not been verified by a taxonomic editorCosmarium denotarisii (Wittrock) Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium denticulatum Borge
  » Variety Checked: verified by a taxonomic editorCosmarium denticulatum var. ovale Grönblad
Species Checked: verified by a taxonomic editorCosmarium dentiferum Corda ex Nordstedt
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium dentiferum f. minus Huber-Pestalozzi, 1928
» Variety Checked: verified by a taxonomic editorCosmarium dentiferum var. alpinum Messikommer
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium dentiferum var. quadrum (P.Lundell) Playfair
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium dentiferum var. sublatum (Nordstedt) Playfair
» Variety Checked: verified by a taxonomic editorCosmarium dentiferum var. porrectum (Nordstedt) Playfair accepted as Checked: verified by a taxonomic editorCosmarium porrectum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium depauperatum Nordstedt, 1878
Species Checked: verified by a taxonomic editorCosmarium depressum (Nägeli) P.Lundell, 1871
  » Variety Checked: verified by a taxonomic editorCosmarium depressum var. achondrum (Boldt) West & G.S.West, 1905
Species Unreviewed: has not been verified by a taxonomic editorCosmarium diadema
  » Variety Checked: verified by a taxonomic editorCosmarium diadema var. major Wei, 1984
Species Unreviewed: has not been verified by a taxonomic editorCosmarium diadematum Schaarschmidt, 1883
Species Checked: verified by a taxonomic editorCosmarium dichondroides Grönblad, 1962
Species Checked: verified by a taxonomic editorCosmarium dichondrum West & G.S.West, 1895
  » Variety Checked: verified by a taxonomic editorCosmarium dichondrum var. tumidum Borge, 1903
Species Checked: verified by a taxonomic editorCosmarium dickii Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium didymochondrum Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium didymoprotupsum West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium difficile Lütkemüller, 1892
  » Forma Checked: verified by a taxonomic editorCosmarium difficile f. laeve A.M.Scott & Prescott
» Forma Checked: verified by a taxonomic editorCosmarium difficile f. rectangulum D.B.Williamson
» Variety Checked: verified by a taxonomic editorCosmarium difficile var. constrictum Messikommer
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium difficile var. dilatatum Borge, 1925
» Variety Checked: verified by a taxonomic editorCosmarium difficile var. messikommeri (Croasdale) Kouwets, 1997
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium difficile var. minutissimae (Woloszynska) Brook
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium difficile var. subimpressulum Messikommer, 1927
» Variety Checked: verified by a taxonomic editorCosmarium difficile var. sublaeve Lütkemüller, 1893
» Variety Checked: verified by a taxonomic editorCosmarium difficile var. sublaeve Roy & Bisset
Species Checked: verified by a taxonomic editorCosmarium difficillimum Playfair
Species Checked: verified by a taxonomic editorCosmarium difficiloides Kouwets, 2001
Species Checked: verified by a taxonomic editorCosmarium dilatatum Lütkemüller, 1960
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium dilatatum var. concavum (J.Sieminska) F.A.C.Kouwets
Species Unreviewed: has not been verified by a taxonomic editorCosmarium dimaziforme
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium dimaziforme var. brasiliense (R.Grönblad) P.Bourrelly & A.Couté
Species Checked: verified by a taxonomic editorCosmarium diplodesmium Skuja, 1964
Species Checked: verified by a taxonomic editorCosmarium distichum Nordstedt, 1887
  » Variety Checked: verified by a taxonomic editorCosmarium distichum var. heterochondrum Raciborski
Species Checked: verified by a taxonomic editorCosmarium dorsitruncatum (Nordstedt) G.S.West, 1909
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium dorsitruncatum var. pseudoscenedesmus (West & G.S.West) Willi Krieger & Gerloff
Species Checked: verified by a taxonomic editorCosmarium dovrense Nordstedt, 1879
Species Checked: verified by a taxonomic editorCosmarium dubium Borge
Species Checked: verified by a taxonomic editorCosmarium dybowskii Gutwinski, 1896
Species Checked: verified by a taxonomic editorCosmarium eductum J.Roy & Bisset, 1888
  » Variety Checked: verified by a taxonomic editorCosmarium eductum var. tatricum Raciborski
Species Unreviewed: has not been verified by a taxonomic editorCosmarium eichlerianum (Grönblad) Messikommer, 1957
Species Checked: verified by a taxonomic editorCosmarium elegantissimum P.Lundell, 1871
  » Forma Checked: verified by a taxonomic editorCosmarium elegantissimum f. intermedium Kaiser
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium elegantissimum var. elegantissimum
  » Forma Checked: verified by a taxonomic editorCosmarium elegantissimum var. elegantissimum f. minus West, 1892 accepted as Checked: verified by a taxonomic editorCosmarium simplicius (West & G.S.West) Grönblad, 1931
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium elegantissimum var. puerile (West) Kouwets, 1997
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium elegantissimum var. subsimplex Gronblad, 1926
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium elegantissimum var. subsimplex Gronblad, 1926
» Forma Checked: verified by a taxonomic editorCosmarium elegantissimum f. minus West, 1892 accepted as Checked: verified by a taxonomic editorCosmarium simplicius (West & G.S.West) Grönblad, 1931
» Variety Checked: verified by a taxonomic editorCosmarium elegantissimum var. simplicius West & G.S.West, 1898 accepted as Checked: verified by a taxonomic editorCosmarium simplicius (West & G.S.West) Grönblad, 1931
Species Checked: verified by a taxonomic editorCosmarium entochondrum West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium erosum Delponte, 1877
Species Checked: verified by a taxonomic editorCosmarium etchachanense J.Roy & Bisset, 1894
Species Unreviewed: has not been verified by a taxonomic editorCosmarium euryophrys
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium euryophrys var. euryophrys Skuja, 1976
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium euryophrys var. hemisphaericum Skuja, 1976
Species Unreviewed: has not been verified by a taxonomic editorCosmarium eutelium Skuja, 1976
Species Checked: verified by a taxonomic editorCosmarium exasperatum Joshua
  » Variety Checked: verified by a taxonomic editorCosmarium exasperatum var. spinatum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium excavatum Nordstedt, 1870
  » Variety Checked: verified by a taxonomic editorCosmarium excavatum var. duplo-maius (Wille) Kurt Förster, 1972
» Forma Checked: verified by a taxonomic editorCosmarium excavatum f. duplo-maius Wille accepted as Checked: verified by a taxonomic editorCosmarium excavatum var. duplo-maius (Wille) Kurt Förster, 1972
Species Checked: verified by a taxonomic editorCosmarium exiguum W.Archer, 1864
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium exiguum f. exiguum Archer, 1864
» Forma Unreviewed: has not been verified by a taxonomic editorCosmarium exiguum f. major Skuja, 1976
» Forma Checked: verified by a taxonomic editorCosmarium exiguum f. paullo-major Nordstedt, 1888
» Forma Unreviewed: has not been verified by a taxonomic editorCosmarium exiguum f. trigonum Nordsedt, 1888
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium exiguum var. maius (Nordstedt) Krieger & Gerloff, 1969
» Variety Checked: verified by a taxonomic editorCosmarium exiguum var. pressum West & G.S.West, 1894
» Variety Checked: verified by a taxonomic editorCosmarium exiguum var. subrectangulum West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium fastidiosum West & G.S.West, 1897
Species Checked: verified by a taxonomic editorCosmarium favum West & G.S.West
Species Unreviewed: has not been verified by a taxonomic editorCosmarium feldmannii
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium feldmannii var. nasiferum (R.Grönblad & A.M.Scott) J.A.Rino
Species Checked: verified by a taxonomic editorCosmarium fictopraemorsum Kurt Förster, 1972
Species Unreviewed: has not been verified by a taxonomic editorCosmarium finlandicum
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium finlandicum var. subetchanense (Grönblad) Prescott
Species Checked: verified by a taxonomic editorCosmarium flavum Roy & Bisset, 1894
Species Unreviewed: has not been verified by a taxonomic editorCosmarium floridarum (West & G.S.West) Lütkemüller
  » Variety Checked: verified by a taxonomic editorCosmarium floridarum var. ambadiense R.L.Grönblad & A.M.Scott, 1958
» Variety Checked: verified by a taxonomic editorCosmarium floridarum var. brasiliense Grönblad
Species Checked: verified by a taxonomic editorCosmarium fluviatile Playfair
Species Checked: verified by a taxonomic editorCosmarium fontigenum Nordstedt, 1878
  » Forma Checked: verified by a taxonomic editorCosmarium fontigenum f. pseudofontigenum (Gutwinski) Borzec, 1920 accepted as Checked: verified by a taxonomic editorCosmarium fontigenum Nordstedt, 1878
Species Checked: verified by a taxonomic editorCosmarium formosulum Hoff, 1888
  » Forma Checked: verified by a taxonomic editorCosmarium formosulum f. minor Hoffman
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium formosulum var. nathorstii (Boldt) West & G.S.West, 1908
» Variety Checked: verified by a taxonomic editorCosmarium formosulum var. poljanae Pevalek
Species Checked: verified by a taxonomic editorCosmarium foveatum Schmidle, 1898
Species Checked: verified by a taxonomic editorCosmarium furcatospermum West & G.S.West, 1894
  » Variety Checked: verified by a taxonomic editorCosmarium furcatospermum var. fallax Y.Kanetsuna, 2000
Species Checked: verified by a taxonomic editorCosmarium furcatum K.Förster & Eckert, 1964
Species Checked: verified by a taxonomic editorCosmarium fusum Roy & Bisset, 1886
Species Checked: verified by a taxonomic editorCosmarium galeritum Nordstedt, 1870
  » Variety Checked: verified by a taxonomic editorCosmarium galeritum var. subtumidum Borge
Species Checked: verified by a taxonomic editorCosmarium garrolense J.Roy & Bisset, 1894
  » Variety Unreviewed: has not been verified by a taxonomic editorCosmarium garrolense var. dimidio-minor (Gronblad) Willi Krieger & Gerloff
» Variety Checked: verified by a taxonomic editorCosmarium garrolense var. crassum C.C.Jao, 1949 accepted as Checked: verified by a taxonomic editorCosmarium jaoi Kouwets, 1998
Species Unreviewed: has not been verified by a taxonomic editorCosmarium gauthierae St'asny & Neustupa, 2008
Species Checked: verified by a taxonomic editorCosmarium gayanum De Toni, 1889
  » Variety Checked: verified by a taxonomic editorCosmarium gayanum var. eboracense (West) West & G.S.West, 1912
Species Checked: verified by a taxonomic editorCosmarium geminatum P.Lundell, 1871
  » Forma Checked: verified by a taxonomic editorCosmarium geminatum f. ornatum Behre
» Variety Checked: verified by a taxonomic editorCosmarium geminatum var. scottii K.Förster, 1969
Species Checked: verified by a taxonomic editorCosmarium gemma R.L.Grönblad & A.M.Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium geometricum West & G.S.West, 1895
  » Variety Checked: verified by a taxonomic editorCosmarium geometricum var. pseudoretiforme Grönblad, 1960
Species Checked: verified by a taxonomic editorCosmarium georgicum Reinsch, 1890
Species Checked: verified by a taxonomic editorCosmarium gibberulum Lütekemüller
Species Unreviewed: has not been verified by a taxonomic editorCosmarium giganteum (Y.Thérézien) P.F.M.Coesel
Species Checked: verified by a taxonomic editorCosmarium glyptodermum West & G.S.West, 1895
  » Variety Checked: verified by a taxonomic editorCosmarium glyptodermum var. tuberculatum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium goniodes West & G.S.West, 1895
  » Variety Checked: verified by a taxonomic editorCosmarium goniodes var. subturgidum West & G.S.West, 1902
» Variety Checked: verified by a taxonomic editorCosmarium goniodes var. variolatum West & G.S.West, 1905
Species Unreviewed: has not been verified by a taxonomic editorCosmarium gotlandicum
  » Variety Checked: verified by a taxonomic editorCosmarium gotlandicum var. cambrense W.B.Turner, 1893 accepted as Checked: verified by a taxonomic editorCosmarium rectangulare var. cambrense (W.B.Turner) West & G.S.West, 1896
» Variety Checked: verified by a taxonomic editorCosmarium gotlandicum var. cambrense W.B.Turner, 1893 accepted as Checked: verified by a taxonomic editorCosmarium rectangulare var. cambrense (W.B.Turner) West & G.S.West, 1896
Species Unreviewed: has not been verified by a taxonomic editorCosmarium granatoides (Schmidle) Schmidle
Species Checked: verified by a taxonomic editorCosmarium granatum Brébisson ex Ralfs, 1848
  » Forma Checked: verified by a taxonomic editorCosmarium granatum f. scrobiculatum A.M.Scott & Prescott
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. alatum (Jacobsen) Förster, 1965
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. concavum Lagerheim, 1890
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. delpontei Gutwinski, 1891
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. elongatum Nordstedt, 1872
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. excavatum
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. gibbosum Schmidle
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium granatum var. granatum
  » Forma Checked: verified by a taxonomic editorCosmarium granatum var. granatum f. messikommeri Croasdale, 1973
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. grunowii Roy
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. nordstedtii Hansgirg, 1888
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. ocellatum Grönblad
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. pentagonum Raciborski
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. pyramidal Schmidle
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. rotundatum Krieger, 1932
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. subangulare West & G.S.West
» Forma Checked: verified by a taxonomic editorCosmarium granatum f. alatum Jacobsen, 1876 accepted as Checked: verified by a taxonomic editorCosmarium granatum var. alatum (Jacobsen) Förster, 1965
» Forma Checked: verified by a taxonomic editorCosmarium granatum f. pentagonum Raciborski, 1892 accepted as Checked: verified by a taxonomic editorCosmarium granatum Brébisson ex Ralfs, 1848
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. africanum Fritsch, 1921 accepted as Checked: verified by a taxonomic editorCosmarium granatum var. nordstedtii Hansgirg, 1888
» Variety Checked: verified by a taxonomic editorCosmarium granatum var. subgranatum Nordstedt, 1878 accepted as Checked: verified by a taxonomic editorCosmarium subgranatum (Nordstedt) Lütkemüller, 1902
Species Checked: verified by a taxonomic editorCosmarium grantii Roy & Bisset, 1894
Species Checked: verified by a taxonomic editorCosmarium granulatum West, 1889
Species Checked: verified by a taxonomic editorCosmarium granuluscum J.Roy & Bisset
Species Checked: verified by a taxonomic editorCosmarium gravatum W.Archer
Species Checked: verified by a taxonomic editorCosmarium hammeri Reinsch, 1866
  » Forma Unreviewed: has not been verified by a taxonomic editorCosmarium hammeri f. minus
» Forma Unreviewed: has not been verified by a taxonomic editorCosmarium hammeri f. queenslandica
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. croasdale Willi Krieger & Gerloff, 1962
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. hammeri Reinsch, 1867
» Variety Unreviewed: has not been verified by a taxonomic editorCosmarium hammeri var. hibernicum Cooke, 1886
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. protuberans West & G.S.West, 1896
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. schmidlei R.L.Grönblad & A.M.Scott, 1958
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. subbinale Nordstedt, 1887
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. sublaeve Raciborski
» Forma Checked: verified by a taxonomic editorCosmarium hammeri f. retusiforme Wille, 1880 accepted as Checked: verified by a taxonomic editorCosmarium retusiforme (Wille) Gutwinski, 1890
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. acuta W.B.Turner, 1893 accepted as Checked: verified by a taxonomic editorCosmarium retusiforme var. acutum (W.B.Turner) Willi Krieger & Gerloff, 1862
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. africanum F.E.Fritsch, 1921 accepted as Checked: verified by a taxonomic editorCosmarium sexnotatum var. tristriatum (Lütkemuller) Schmidle, 1895
» Variety Checked: verified by a taxonomic editorCosmarium hammeri var. homalodernum (Nordstedt) West & G.S.West, 1905 accepted as Checked: verified by a taxonomic editorCosmarium homalodermum Nordstedt, 1875
Species Checked: verified by a taxonomic editorCosmarium hardyi G.S.West
Species Unreviewed: has not been verified by a taxonomic editorCosmarium haxapapillatum
  » Variety Checked: verified by a taxonomic editorCosmarium haxapapillatum var. novempapillatum Zhu & Hu, 1984
Species Checked: verified by a taxonomic editorCosmarium haynaldii Schaarschmidt, 1883
Species Checked: verified by a taxonomic editorCosmarium heimerlii West, 1895
Species Checked: verified by a taxonomic editorCosmarium helcangulare Nordstedt, 1888
Species Unreviewed: has not been verified by a taxonomic editorCosmarium helccangulare
  » Variety Checked: verified by a taxonomic editorCosmarium helccangulare var. brasiliense Willi Krieger
Species Checked: verified by a taxonomic editorCosmarium heliosporum Maskell, 1889
Species Checked: verified by a taxonomic editorCosmarium hexalobum Nordstedt, 1872
Species Checked: verified by a taxonomic editorCosmarium hians Borge
Species Checked: verified by a taxonomic editorCosmarium holmiense P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium holmii Wille, 1885
Species Checked: verified by a taxonomic editorCosmarium homalodermum Nordstedt, 1875
Species Checked: verified by a taxonomic editorCosmarium horizontale (Schmidle) Kouwets, 1997
Species Checked: verified by a taxonomic editorCosmarium hornavanense Gutwinski, 1909
Species Checked: verified by a taxonomic editorCosmarium humile Nordstedt ex De Toni, 1889
Species Unreviewed: has not been verified by a taxonomic editorCosmarium hunyadyanum Schaarschmidt, 1882
Species Checked: verified by a taxonomic editorCosmarium impressulum Elfving, 1881
Species Checked: verified by a taxonomic editorCosmarium inacrassatoplicatum Hinode
Species Checked: verified by a taxonomic editorCosmarium incertum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium incognitum Playfair
Species Checked: verified by a taxonomic editorCosmarium inconspicuum West & G.S.West, 1896
Species Checked: verified by a taxonomic editorCosmarium incurvum Lütkemüller ex Grönblad, 1942
Species Checked: verified by a taxonomic editorCosmarium indentatum Grönblad, 1920
Species Unreviewed: has not been verified by a taxonomic editorCosmarium infirmum Grondblad, 1926
Species Checked: verified by a taxonomic editorCosmarium insamii Insam & Krieger, 1936
Species Checked: verified by a taxonomic editorCosmarium insigne W.B.Turner, 1893
Species Checked: verified by a taxonomic editorCosmarium intermedium Delponte, 1878
Species Checked: verified by a taxonomic editorCosmarium isthmium West, 1890
Species Checked: verified by a taxonomic editorCosmarium isthmochondrum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium itatiayae Willi Krieger, 1950
Species Checked: verified by a taxonomic editorCosmarium jaoi Kouwets, 1998
Species Checked: verified by a taxonomic editorCosmarium javanicum Nordstedt, 1880
Species Checked: verified by a taxonomic editorCosmarium jemtlandicum Grönblad
Species Checked: verified by a taxonomic editorCosmarium jenisejense Boldt, 1885
Species Checked: verified by a taxonomic editorCosmarium jugatum Coesel, 2007
Species Unreviewed: has not been verified by a taxonomic editorCosmarium kanitzii Schaarschmidt, 1883
Species Checked: verified by a taxonomic editorCosmarium kirchneri Børgesen, 1889
Species Checked: verified by a taxonomic editorCosmarium kjellmanii Wille, 1879
Species Checked: verified by a taxonomic editorCosmarium kolkwitzii Willi Krieger, 1950
Species Checked: verified by a taxonomic editorCosmarium kostei K.Thomasson
Species Checked: verified by a taxonomic editorCosmarium kotilainense Grönblad, 1962
Species Checked: verified by a taxonomic editorCosmarium kwangsiense C.C.Jao, 1949
Species Checked: verified by a taxonomic editorCosmarium laeve Rabenhorst, 1868
Species Unreviewed: has not been verified by a taxonomic editorCosmarium lagenarioides (Roy) Lütkem., 1923
Species Checked: verified by a taxonomic editorCosmarium lagerheimii Gutwinski, 1892
Species Checked: verified by a taxonomic editorCosmarium lapponicum Borge
Species Checked: verified by a taxonomic editorCosmarium latereprotractum Playfair
Species Checked: verified by a taxonomic editorCosmarium laticeps Grunow ex Rabenhorst, 1868
Species Checked: verified by a taxonomic editorCosmarium laticollum Delponte
Species Checked: verified by a taxonomic editorCosmarium latifrons P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium leiodermum F.Gay, 1884
Species Checked: verified by a taxonomic editorCosmarium lepidum West, 1889
Species Checked: verified by a taxonomic editorCosmarium levinotabile Croasdale, 1981
Species Checked: verified by a taxonomic editorCosmarium limai J.Sampaio, 1941
Species Checked: verified by a taxonomic editorCosmarium limnophilum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium lobatosporum W.Archer, 1867
Species Checked: verified by a taxonomic editorCosmarium lobulatum Schmidle, 1893
Species Checked: verified by a taxonomic editorCosmarium logiense Bissett, 1884
Species Unreviewed: has not been verified by a taxonomic editorCosmarium lomnicense
Species Unreviewed: has not been verified by a taxonomic editorCosmarium lortetianum Rabenhorst
Species Checked: verified by a taxonomic editorCosmarium lundellii Delponte, 1878
Species Checked: verified by a taxonomic editorCosmarium lutetianum Kouwets, 1998
Species Checked: verified by a taxonomic editorCosmarium luxuriosum (Kouwets) Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium maamense D.B.Williamson & D.M.John, 2009
Species Checked: verified by a taxonomic editorCosmarium macrochondrum Grönblad & Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium magnificum Nordstedt, 1887
Species Checked: verified by a taxonomic editorCosmarium majae Strøm, 1922
Species Checked: verified by a taxonomic editorCosmarium malinvernianum (Raciborski) Schmidle, 1894
Species Unreviewed: has not been verified by a taxonomic editorCosmarium mamilliferum
Species Checked: verified by a taxonomic editorCosmarium mansangense West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium margaritaceum
Species Checked: verified by a taxonomic editorCosmarium margaritatum (P.Lundell) J.Roy & Bisset, 1886
Species Checked: verified by a taxonomic editorCosmarium margaritiferum Meneghini ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium maskellii H.Croasdale, 1988
Species Checked: verified by a taxonomic editorCosmarium mateyucense P.F.M.Coesel
Species Checked: verified by a taxonomic editorCosmarium mbabanicum D.B.Williamson
Species Checked: verified by a taxonomic editorCosmarium medioretrusum Coesel, 2007
Species Checked: verified by a taxonomic editorCosmarium medioscrobiculatum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium melanosporum W.Archer & J.Roy, 1883
Species Unreviewed: has not been verified by a taxonomic editorCosmarium meneghini
Species Checked: verified by a taxonomic editorCosmarium meneghinii Brébisson ex Ralfs, 1848
Species Unreviewed: has not been verified by a taxonomic editorCosmarium mentiens Schaarschmidt, 1883
Species Unreviewed: has not been verified by a taxonomic editorCosmarium mesoleium (Raciborski) Playfair
Species Checked: verified by a taxonomic editorCosmarium messikommeri Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium microsphinctum Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium minimum West & G.S.West, 1895
Species Checked: verified by a taxonomic editorCosmarium minor
Species Checked: verified by a taxonomic editorCosmarium minutissimum W.Archer, 1877
Species Checked: verified by a taxonomic editorCosmarium miscellum Skuja & Messikommer
Species Checked: verified by a taxonomic editorCosmarium moerlianum Lütkemüller, 1893
Species Checked: verified by a taxonomic editorCosmarium moniliferum Reinsch, 1875
Species Checked: verified by a taxonomic editorCosmarium moniliforme Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium monochondrum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium monomazum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium montrealense Croasdale, 1981
Species Checked: verified by a taxonomic editorCosmarium mooreanum (Archer) Lütekmuller
Species Checked: verified by a taxonomic editorCosmarium morsum West, 1892
Species Checked: verified by a taxonomic editorCosmarium multigranulatum Prescott & A.M.Scott
Species Checked: verified by a taxonomic editorCosmarium multiordinatum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium multituberculatum F.E.Fritsch & M.F.Rich
Species Checked: verified by a taxonomic editorCosmarium murrayi Playfair
Species Checked: verified by a taxonomic editorCosmarium naegelianum Brébisson, 1856
Species Unreviewed: has not been verified by a taxonomic editorCosmarium naeglianum
Species Checked: verified by a taxonomic editorCosmarium nagelianum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium nasutum Nordstedt, 1872
Species Unreviewed: has not been verified by a taxonomic editorCosmarium nathorstii Boldt
Species Checked: verified by a taxonomic editorCosmarium neapolitanum F.Balsamo, 1889
Species Checked: verified by a taxonomic editorCosmarium neouviellense Kouwets, 1997
Species Checked: verified by a taxonomic editorCosmarium netzerianum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium nitidulum De Notaris, 1867
Species Checked: verified by a taxonomic editorCosmarium nivram M.Dingley, 2004
Species Unreviewed: has not been verified by a taxonomic editorCosmarium nordstedtii Delponte, 1878
Species Checked: verified by a taxonomic editorCosmarium norimbergense Reinsch, 1867
Species Checked: verified by a taxonomic editorCosmarium norvegicum Strøm
Species Checked: verified by a taxonomic editorCosmarium norwegicum Strøm, 1926
Species Checked: verified by a taxonomic editorCosmarium notabile Brébisson, 1856
Species Unreviewed: has not been verified by a taxonomic editorCosmarium notatum (Grönblad) Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium novae-semliae Wille, 1879
Species Unreviewed: has not been verified by a taxonomic editorCosmarium novae-somliae
Species Unreviewed: has not been verified by a taxonomic editorCosmarium nudum (W.B.Turner) Gutwinski
Species Checked: verified by a taxonomic editorCosmarium nuttallii West, 1892
Species Checked: verified by a taxonomic editorCosmarium nymannianum Grunow, 1868
Species Unreviewed: has not been verified by a taxonomic editorCosmarium obgoletum (Hantzsch) Reinsch, 1867
Species Checked: verified by a taxonomic editorCosmarium obliquum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium oblongum Bennett, 1886
Species Checked: verified by a taxonomic editorCosmarium obsoletum (Hantzsch) Reinsch, 1867
Species Unreviewed: has not been verified by a taxonomic editorCosmarium obsoletum (Hantzsch) Reinsch
Species Checked: verified by a taxonomic editorCosmarium obtusatum (Schmidle) Schmidle, 1898
Species Checked: verified by a taxonomic editorCosmarium ocellatum B.Eichler & Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium ochthodes Nordstedt, 1875
Species Unreviewed: has not been verified by a taxonomic editorCosmarium octhodes
Species Checked: verified by a taxonomic editorCosmarium oenpelliense A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium oligogongrus Reinsch, 1875
Species Checked: verified by a taxonomic editorCosmarium oliveri Schaarschm.
Species Unreviewed: has not been verified by a taxonomic editorCosmarium onychonema
Species Checked: verified by a taxonomic editorCosmarium ophelii Prescott & A.M.Scott
Species Checked: verified by a taxonomic editorCosmarium orbiculatum Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium ordinatum (Børgesen) West & G.S.West, 1896
Species Checked: verified by a taxonomic editorCosmarium ornatulum Coesel
Species Checked: verified by a taxonomic editorCosmarium ornatum Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium orthogonum Delponte, 1878
Species Checked: verified by a taxonomic editorCosmarium orthopunctulatum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium orthostichum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium ovale Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium pachydermum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium palustre W.B.Turner, 1893
Species Checked: verified by a taxonomic editorCosmarium panduratum Delponte
Species Checked: verified by a taxonomic editorCosmarium panduriforme W.B.Turner
Species Unreviewed: has not been verified by a taxonomic editorCosmarium pankakoskii Gronblad
Species Checked: verified by a taxonomic editorCosmarium papilliferum Schmidle
Species Checked: verified by a taxonomic editorCosmarium paragranatoides Skuja, 1930
Species Checked: verified by a taxonomic editorCosmarium pardalis Cohn
Species Checked: verified by a taxonomic editorCosmarium parvulum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium paucigranulatum Borge
Species Checked: verified by a taxonomic editorCosmarium perfissum G.S.West, 1909
Species Checked: verified by a taxonomic editorCosmarium perforatum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium pericymatium Nordstedt, 1875
Species Checked: verified by a taxonomic editorCosmarium perigranulatum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium permaculatum R.L.Grönblad & A.M.Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium perpusillum West, 1892
Species Checked: verified by a taxonomic editorCosmarium petsamoense Cedercreutz, 1932
Species Checked: verified by a taxonomic editorCosmarium phaseolus Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium pileolatum Brébisson ex Comère, 1901
Species Checked: verified by a taxonomic editorCosmarium planogranatum Croasdale, 1962
Species Checked: verified by a taxonomic editorCosmarium plicatum Reinsch, 1867
Species Checked: verified by a taxonomic editorCosmarium pluviale W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium pokornyanum (Grunow) West & G.S.West, 1900
Species Checked: verified by a taxonomic editorCosmarium polygonatum Halász, 1940
Species Checked: verified by a taxonomic editorCosmarium polygonum (Nägeli) W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium polymorphum Nordstedt, 1870
Species Checked: verified by a taxonomic editorCosmarium porrectum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium porteanum W.Archer, 1860
Species Checked: verified by a taxonomic editorCosmarium praecisum Borge, 1921
Species Checked: verified by a taxonomic editorCosmarium praegrande P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium praemorsum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium prometopidion Skuja, 1976
Species Checked: verified by a taxonomic editorCosmarium prominulum Raciborski, 1885
Species Checked: verified by a taxonomic editorCosmarium promontorium West & G.S.West, 1894
Species Checked: verified by a taxonomic editorCosmarium protomphalum Skuja
Species Checked: verified by a taxonomic editorCosmarium protractum (Nägeli) De Bary, 1858
Species Checked: verified by a taxonomic editorCosmarium protruberans P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium protuberans P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium prowsei Grönblad & Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium pseudamoenum Wille, 1884
Species Checked: verified by a taxonomic editorCosmarium pseudarctoides Strøm
Species Checked: verified by a taxonomic editorCosmarium pseudarctoum Nordstedt, 1879
Species Checked: verified by a taxonomic editorCosmarium pseudatlantoideum West, 1892
Species Checked: verified by a taxonomic editorCosmarium pseudoamoenum Wille, 1884
Species Checked: verified by a taxonomic editorCosmarium pseudoarmatum A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium pseudobiremum Boldt, 1885
Species Checked: verified by a taxonomic editorCosmarium pseudobotrytis F.Gay, 1884
Species Checked: verified by a taxonomic editorCosmarium pseudobroomei Wolle, 1884
Species Checked: verified by a taxonomic editorCosmarium pseudocommissurale F.A.C.Kouwets, 1991
Species Checked: verified by a taxonomic editorCosmarium pseudoconnatum Nordstedt, 1870
Species Checked: verified by a taxonomic editorCosmarium pseudoexiguum Raciborski, 1885
Species Checked: verified by a taxonomic editorCosmarium pseudogranatum Nordstedt, 1870
Species Checked: verified by a taxonomic editorCosmarium pseudoholmii Borge, 1913
Species Checked: verified by a taxonomic editorCosmarium pseudoincrassatum P.Bourrelly & A.Couté
Species Checked: verified by a taxonomic editorCosmarium pseudoinsigne Prescott, 1981
Species Unreviewed: has not been verified by a taxonomic editorCosmarium pseudomargaritiferum Reinsch
Species Checked: verified by a taxonomic editorCosmarium pseudonitidulum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium pseudoornatum B.Eichler & Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium pseudopachydermum Nordstedt, 1887
Species Checked: verified by a taxonomic editorCosmarium pseudopericymatium Hinode, 1965
Species Checked: verified by a taxonomic editorCosmarium pseudophaseolus Brühl & Biswas, 1926
Species Checked: verified by a taxonomic editorCosmarium pseudoprotuberans O.Kirchner, 1878
Species Checked: verified by a taxonomic editorCosmarium pseudopyramidatum P.Lundell, 1871
Species Unreviewed: has not been verified by a taxonomic editorCosmarium pseudopyrimidatum
Species Checked: verified by a taxonomic editorCosmarium pseudoquadratulum Prescott & A.M.Scott
Species Checked: verified by a taxonomic editorCosmarium pseudoretusum F.Ducellier
Species Checked: verified by a taxonomic editorCosmarium pseudoscenedesmus West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium pseudospeciosum Raciborski, 1892
Species Unreviewed: has not been verified by a taxonomic editorCosmarium pseudotinescense
Species Checked: verified by a taxonomic editorCosmarium pseudovariolatum Grönblad
Species Checked: verified by a taxonomic editorCosmarium pseudowembaerense Kouwets, 1998
Species Checked: verified by a taxonomic editorCosmarium pulcherrimum Nordstedt, 1870
Species Checked: verified by a taxonomic editorCosmarium punctatum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium punctulatum Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium pycnochondrum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium pygmaeum W.Archer, 1864
Species Checked: verified by a taxonomic editorCosmarium pyramidatum Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium pyriforme Nordstedt
Species Checked: verified by a taxonomic editorCosmarium quadratulum (F.Gay) De Toni, 1889
Species Checked: verified by a taxonomic editorCosmarium quadratum Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium quadridentatum West & G.S.West, 1902
Species Checked: verified by a taxonomic editorCosmarium quadrifarium P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium quadrimamillatum West & G.S.West, 1903
Species Checked: verified by a taxonomic editorCosmarium quadriverrucosum West & G.S.West, 1907
Species Checked: verified by a taxonomic editorCosmarium quadrogranulatum West & G.S.West, 1895
Species Unreviewed: has not been verified by a taxonomic editorCosmarium quadrulatum
Species Checked: verified by a taxonomic editorCosmarium quadrum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium quasillus P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium quaternarium Nordstedt, 1880
Species Checked: verified by a taxonomic editorCosmarium quinarium P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium raciborskii Lagerheim, 1887
Species Checked: verified by a taxonomic editorCosmarium radiosum Wolle, 1884
Species Checked: verified by a taxonomic editorCosmarium raeticum Messikommer, 1935
Species Checked: verified by a taxonomic editorCosmarium ralfsii Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium rarissimum D.B.Williamson
Species Checked: verified by a taxonomic editorCosmarium rectangulare Grunow, 1868
Species Checked: verified by a taxonomic editorCosmarium rectangulum Reinsch, 1875
Species Checked: verified by a taxonomic editorCosmarium refringens
Species Checked: verified by a taxonomic editorCosmarium regnellii Wille, 1884
Species Checked: verified by a taxonomic editorCosmarium regnesii Reinsch, 1866
Species Checked: verified by a taxonomic editorCosmarium regulare Schmidle, 1894
Species Checked: verified by a taxonomic editorCosmarium reinschii W.Archer, 1876
Species Checked: verified by a taxonomic editorCosmarium reniforme (Ralfs) W.Archer, 1874
Species Checked: verified by a taxonomic editorCosmarium repandum Nordstedt, 1887
Species Checked: verified by a taxonomic editorCosmarium retusiforme (Wille) Gutwinski, 1890
Species Checked: verified by a taxonomic editorCosmarium retusum (Perty) Rabenhorst, 1868
Species Checked: verified by a taxonomic editorCosmarium rotundatum (F.Gay) De Toni, 1889
Species Checked: verified by a taxonomic editorCosmarium rotundum Prescott & A.M.Scott
Species Checked: verified by a taxonomic editorCosmarium rupestre (Nägeli) W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium salinum Hansgirg, 1886
Species Checked: verified by a taxonomic editorCosmarium saxicola Kaiser, 1926
Species Checked: verified by a taxonomic editorCosmarium scopulorum O.Borge, 1913
Species Checked: verified by a taxonomic editorCosmarium scoticum West & G.S.West, 1894
Species Unreviewed: has not been verified by a taxonomic editorCosmarium scottii
Species Checked: verified by a taxonomic editorCosmarium securiforme Borge
Species Checked: verified by a taxonomic editorCosmarium seelyanum Wolle
Species Checked: verified by a taxonomic editorCosmarium sexangulare P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium sexnotatum Gutwinski, 1892
Species Checked: verified by a taxonomic editorCosmarium simii Roy & Bisset, 1894
Species Checked: verified by a taxonomic editorCosmarium simplex (F.Gay) De Toni
Species Checked: verified by a taxonomic editorCosmarium simplicius (West & G.S.West) Grönblad, 1931
Species Checked: verified by a taxonomic editorCosmarium simulum Borge
Species Checked: verified by a taxonomic editorCosmarium sinostegos Schaarschmidt, 1882
Species Checked: verified by a taxonomic editorCosmarium skujae Willi Krieger & Gerloff, 1965
Species Checked: verified by a taxonomic editorCosmarium slewdrumense Roy, 1890
Species Checked: verified by a taxonomic editorCosmarium smolandicum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium sniatyniense Gutwinski
Species Checked: verified by a taxonomic editorCosmarium solidum Nordstedt, 1887
Species Checked: verified by a taxonomic editorCosmarium sparsepunctatum (Schmidle) West & G.S.West, 1897
Species Checked: verified by a taxonomic editorCosmarium spechtii A.M.Scott & Prescott
Species Checked: verified by a taxonomic editorCosmarium speciosissimum Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium speciosum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium sphaeroideum West, 1892
Species Checked: verified by a taxonomic editorCosmarium sphagnicola West & G.S.West, 1897
Species Checked: verified by a taxonomic editorCosmarium sphalerostichum Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium sphyrelatum Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium spinuliferum West & G.S.West
Species Unreviewed: has not been verified by a taxonomic editorCosmarium spirale (Playfair) Willi Krieger & J.Gerloff
Species Checked: verified by a taxonomic editorCosmarium sportella Brébisson ex Kützing, 1849
Species Checked: verified by a taxonomic editorCosmarium spyridion West & G.S.West, 1895
Species Checked: verified by a taxonomic editorCosmarium staurastroides Eichler & Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium staurochondrum Lemaire
Species Unreviewed: has not been verified by a taxonomic editorCosmarium stenonotum
Species Checked: verified by a taxonomic editorCosmarium stigmosum (Nordstedt) Krieger, 1932
Species Checked: verified by a taxonomic editorCosmarium striolatum (Nägeli) W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium subadoxum Grönblad
Species Checked: verified by a taxonomic editorCosmarium subalatum West & G.S.West, 1895
Species Checked: verified by a taxonomic editorCosmarium subarctoum (Lagerheim) Raciborski, 1892
Species Checked: verified by a taxonomic editorCosmarium subaversum Barges., 1897
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subbinale (Nordstedt) Lager.
Species Checked: verified by a taxonomic editorCosmarium subbroomei Schmidle, 1893
Species Checked: verified by a taxonomic editorCosmarium subcapitulum West
Species Checked: verified by a taxonomic editorCosmarium subcontractum West & G.S.West, 1905
Species Checked: verified by a taxonomic editorCosmarium subcostatum Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium subcrenatum Hantzsch, 1868
Species Checked: verified by a taxonomic editorCosmarium subcrenulatum Hantzsch, 1861
Species Checked: verified by a taxonomic editorCosmarium subcucumis Schmidle, 1893
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subcyclicum Maskell, 1889
Species Checked: verified by a taxonomic editorCosmarium subcylindricum West, 1892
Species Checked: verified by a taxonomic editorCosmarium subdanicum West, 1892
Species Checked: verified by a taxonomic editorCosmarium subdeplanatum Schmidle, 1898
Species Checked: verified by a taxonomic editorCosmarium subdepressum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium subdistichum Raciborski
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subeductum
Species Checked: verified by a taxonomic editorCosmarium subexcavatum West & G.S.West, 1900
Species Checked: verified by a taxonomic editorCosmarium subgranatum (Nordstedt) Lütkemüller, 1902
Species Checked: verified by a taxonomic editorCosmarium subhammeri Rich
Species Checked: verified by a taxonomic editorCosmarium subhexapapillatum Wei, 1984
Species Checked: verified by a taxonomic editorCosmarium subimpressulum O.Borge, 1894
Species Checked: verified by a taxonomic editorCosmarium subjenisejense Grönblad, 1964
Species Checked: verified by a taxonomic editorCosmarium sublobatiforme R.L.Grönblad & A.M.Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium submammilliferum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium subnudiceps West & G.S.West, 1898
Species Checked: verified by a taxonomic editorCosmarium subochthodes Schmidle, 1895
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subochtodes
Species Checked: verified by a taxonomic editorCosmarium suborthostichum Raciborski
Species Checked: verified by a taxonomic editorCosmarium subpachydermum Schmidle, 1893
Species Checked: verified by a taxonomic editorCosmarium subpalangula Elfving, 1881
Species Checked: verified by a taxonomic editorCosmarium subphaseolus F.A.C.Kouwets
Species Checked: verified by a taxonomic editorCosmarium subprotumidum Nordstedt, 1876
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subpyramidatum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium subquadrans West & G.S.West, 1905
Species Checked: verified by a taxonomic editorCosmarium subquadratum Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium subraciborskii Taft, 1945
Species Checked: verified by a taxonomic editorCosmarium subrectangulare Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium subreinschii Schmidle
Species Checked: verified by a taxonomic editorCosmarium subreinschii Schmidle, 1894
Species Checked: verified by a taxonomic editorCosmarium subreniforme Nordstedt, 1875
Species Checked: verified by a taxonomic editorCosmarium subretusiforme West & G.S.West, 1894
Species Checked: verified by a taxonomic editorCosmarium subspeciosum Nordstedt, 1875
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subtholiforme
Species Checked: verified by a taxonomic editorCosmarium subtransiens Croasdale, 1956
Species Checked: verified by a taxonomic editorCosmarium subtrinodulum West & G.S.West, 1900
Species Checked: verified by a taxonomic editorCosmarium subtriordinatum West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium subtumidum Nordstedt, 1889
Species Unreviewed: has not been verified by a taxonomic editorCosmarium subturgidum (W.B.Turner) Schmidle
Species Checked: verified by a taxonomic editorCosmarium subundulatum Wille, 1880
Species Unreviewed: has not been verified by a taxonomic editorCosmarium sumatranum Krieger, 1932
Species Unreviewed: has not been verified by a taxonomic editorCosmarium supraconnatum (W.B.Turner) Biswas, 1949
Species Checked: verified by a taxonomic editorCosmarium synthlibomenum West, 1892
Species Checked: verified by a taxonomic editorCosmarium tatricum Raciborski, 1885
Species Checked: verified by a taxonomic editorCosmarium taxichondriforme Eichler & Gutwinski, 1894
Species Checked: verified by a taxonomic editorCosmarium taxichondrum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium taxillus P.F.M.Coesel & A.Delfos, 1986
Species Checked: verified by a taxonomic editorCosmarium tenellum Brébisson ex Comère
Species Checked: verified by a taxonomic editorCosmarium tenue W.Archer, 1868
Species Unreviewed: has not been verified by a taxonomic editorCosmarium teodorescui Péterfi, 1964
Species Unreviewed: has not been verified by a taxonomic editorCosmarium tetracentrotum Skuja, 1976
Species Checked: verified by a taxonomic editorCosmarium tetrachondrum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium tetragonum (Nägeli) W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium tetraodon R.L.Grönblad & A.M.Scott, 1958
Species Checked: verified by a taxonomic editorCosmarium tetraophthalmum Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium tholiforme Cohn
Species Checked: verified by a taxonomic editorCosmarium thwaitesii Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium tibeticum Wei, 1984
Species Checked: verified by a taxonomic editorCosmarium tinctum Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium tithoporoides Willi Krieger
Species Checked: verified by a taxonomic editorCosmarium tjibenongense Gutwinski
Species Checked: verified by a taxonomic editorCosmarium trachydermum West & G.S.West, 1895
Species Checked: verified by a taxonomic editorCosmarium trachypleurum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium trafalgaricum Wittrock & Wittrock, 1877
Species Unreviewed: has not been verified by a taxonomic editorCosmarium transitorium (Heimer) Ducellier, 1918
Species Checked: verified by a taxonomic editorCosmarium triangulare Borge
Species Checked: verified by a taxonomic editorCosmarium triglavense Pevalek
Species Checked: verified by a taxonomic editorCosmarium trilobulatum Reinsch, 1866
Species Checked: verified by a taxonomic editorCosmarium trinodulum Nordstedt
Species Checked: verified by a taxonomic editorCosmarium triplicatum Wolle
Species Checked: verified by a taxonomic editorCosmarium truncatellum (Perty) Rabenhorst, 1868
Species Checked: verified by a taxonomic editorCosmarium truncatum Brébisson, 1848
Species Checked: verified by a taxonomic editorCosmarium tuberculatum W.Archer, 1862
Species Unreviewed: has not been verified by a taxonomic editorCosmarium tuddalense
Species Checked: verified by a taxonomic editorCosmarium tumens Nordstedt, 1872
Species Checked: verified by a taxonomic editorCosmarium tumidum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium turneri J.Roy, 1890
Species Checked: verified by a taxonomic editorCosmarium turnerianum Maskell, 1889
Species Checked: verified by a taxonomic editorCosmarium turpinii Brébisson, 1856
Species Checked: verified by a taxonomic editorCosmarium tyrolicum (Nordstedt) Willi Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium uliginosum Playfair
Species Checked: verified by a taxonomic editorCosmarium umbilicatum Lütkemüller, 1893
Species Checked: verified by a taxonomic editorCosmarium undulatum Corda ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium ungerianum (Nägeli) De Bary, 1858
Species Checked: verified by a taxonomic editorCosmarium vanoisii Baier & Martinot
Species Unreviewed: has not been verified by a taxonomic editorCosmarium variabile Maskell, 1889
Species Checked: verified by a taxonomic editorCosmarium variolatum P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium varsoviense Raciborski, 1889
Species Checked: verified by a taxonomic editorCosmarium venustum (Brébisson) W.Archer, 1861
Species Unreviewed: has not been verified by a taxonomic editorCosmarium verruculosum (Schmidle) Migula
Species Checked: verified by a taxonomic editorCosmarium vexatum West, 1892
Species Unreviewed: has not been verified by a taxonomic editorCosmarium vexatum (Schmidle) Migula
Species Checked: verified by a taxonomic editorCosmarium vicenistriatum Playfair
Species Checked: verified by a taxonomic editorCosmarium visbyense Grönblad
Species Checked: verified by a taxonomic editorCosmarium vogesiacum Lemaire, 1883
Species Checked: verified by a taxonomic editorCosmarium wembaerense Schmidle, 1898
Species Unreviewed: has not been verified by a taxonomic editorCosmarium westii Bernard, 1908
Species Checked: verified by a taxonomic editorCosmarium willeanum Raciborski
Species Checked: verified by a taxonomic editorCosmarium wittrockii P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium woloszynskae Coesel & Meesters, 2004
Species Checked: verified by a taxonomic editorCosmarium woodlawnense Playfair
Species Checked: verified by a taxonomic editorCosmarium xainzaense Wei, 1984
Species Checked: verified by a taxonomic editorCosmarium zonatum P.Lundell, 1871

Species Checked: verified by a taxonomic editorCosmarium angustatum (Wittrock) Nordstedt, 1872 accepted as Checked: verified by a taxonomic editorCosmarium pokornyanum (Grunow) West & G.S.West, 1900
Species Checked: verified by a taxonomic editorCosmarium anomalum Delponte, 1877 accepted as Checked: verified by a taxonomic editorCosmarium conspersum var. latum (Brébisson) West & G.S.West, 1912
Species Checked: verified by a taxonomic editorCosmarium ansatum (Ehrenberg) Corda, 1839 accepted as Checked: verified by a taxonomic editorEuastrum ansatum Ehrenberg ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium ansatum (Ehrenberg) Rabenhorst, 1868 accepted as Checked: verified by a taxonomic editorCosmarium pseudopyramidatum var. ansatum Krieger & Gerloff, 1965
Species Checked: verified by a taxonomic editorCosmarium antilopaeum Brébisson, 1840 accepted as Checked: verified by a taxonomic editorXanthidium antilopaeum (Brébisson) Kützing, 1849
Species Checked: verified by a taxonomic editorCosmarium attenuatum Brébisson ex Ralfs, 1848 accepted as Checked: verified by a taxonomic editorActinotaenium curtum var. attenuatum (Brébisson ex Ralfs) Teiling ex Ruzicka & Pouzar, 1978
Species Checked: verified by a taxonomic editorCosmarium bacillare Lütkemuller, 1910 accepted as Checked: verified by a taxonomic editorActinotaenium inconspicuum (West & G.S.West) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium bigorrense F.Gay, 1888 accepted as Checked: verified by a taxonomic editorCosmarium tetragonum var. lundellii Cooke, 1887
Species Checked: verified by a taxonomic editorCosmarium boreale Børgesen accepted as Checked: verified by a taxonomic editorCosmarium bioculatum var. boreale (Børgesen) Krieger & Gerloff
Species Checked: verified by a taxonomic editorCosmarium capax Joshua, 1886 accepted as Checked: verified by a taxonomic editorActinotaenium capax (Joshua) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium casaresii V.Allorge & P.Allorge, 1930 accepted as Checked: verified by a taxonomic editorCosmarium coarctatum var. casaresii (V.Allorge & P.Allorge) Krieger & Gerloff, 1969
Species Checked: verified by a taxonomic editorCosmarium celatum (F.Gay) De Toni accepted as Checked: verified by a taxonomic editorCosmarium humile Nordstedt ex De Toni, 1889
Species Checked: verified by a taxonomic editorCosmarium clevei (P.Lundell) Lütkemüller, 1910 accepted as Checked: verified by a taxonomic editorActinotaenium clevei (P.Lundell) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium colpopelta Brébisson ex W.Archer, 1861 accepted as Checked: verified by a taxonomic editorActinotaenium colpopelta (Brébisson ex W.Archer) Compère, 1976
Species Checked: verified by a taxonomic editorCosmarium concinnum Reinsch, 1867 accepted as Checked: verified by a taxonomic editorCosmarium angulosum var. concinnum (Rabenhorst) West & G.S.West, 1901
Species Checked: verified by a taxonomic editorCosmarium confusum Cooke, 1887 accepted as Checked: verified by a taxonomic editorCosmarium margaritiferum var. margaritiferum f. confusum (Cooke) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium cordanum Brébisson ex Rabenhorst, 1868 accepted as Checked: verified by a taxonomic editorActinotaenium cordanum (Brébisson) Ruzicka & Pouzar, 1978
Species Checked: verified by a taxonomic editorCosmarium corribense West & G.S.West, 1906 accepted as Checked: verified by a taxonomic editorCosmarium asphaerosporum var. corribense (West & G.S.West) Willi Krieger & Gerloff, 1969
Species Checked: verified by a taxonomic editorCosmarium corruptum W.B.Turner, 1893 accepted as Checked: verified by a taxonomic editorCosmarium lundellii var. corruptum (W.B.Turner) West & G.S.West, 1902
Species Checked: verified by a taxonomic editorCosmarium crassiusculum (De Bary) Insam & Krieger, 1936 accepted as Checked: verified by a taxonomic editorActinotaenium crassiusculum (De Bary) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium crenatum Ralfs, 1844 accepted as Checked: verified by a taxonomic editorCosmarium crenatum Ralfs ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium cruciferum De Bary, 1858 accepted as Checked: verified by a taxonomic editorActinotaenium cruciferum (De Bary) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium cucurbita Brébisson ex Ralfs, 1848 accepted as Checked: verified by a taxonomic editorActinotaenium cucurbita (Brébisson ex Ralfs) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium cucurbitinum (Bisset) Lütkemüller, 1902 accepted as Checked: verified by a taxonomic editorActinotaenium cucurbitinum (Bisset) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium curtum Brébisson ex Ralfs, 1848 accepted as Checked: verified by a taxonomic editorActinotaenium curtum (Brebisson ex Ralfs) Teiling, 1978
Species Checked: verified by a taxonomic editorCosmarium cyclopeum Playfair accepted as Unreviewed: has not been verified by a taxonomic editorCosmarium rectangulare var. cyclopeum (Playfair) Playfair
Species Checked: verified by a taxonomic editorCosmarium decachondrum J.Roy & Bisset, 1886 accepted as Checked: verified by a taxonomic editorCosmarium haynaldii Schaarschmidt, 1883
Species Checked: verified by a taxonomic editorCosmarium deflandreanum Laporte accepted as Unreviewed: has not been verified by a taxonomic editorCosmarium pachydermum var. hexagonum Gutwinski, 1890
Species Checked: verified by a taxonomic editorCosmarium depressum Bailey, 1851 accepted as Checked: verified by a taxonomic editorCosmarium baileyi Wolle, 1884
Species Checked: verified by a taxonomic editorCosmarium diplosporum (P.Lundell) Lütkemuller, 1913 accepted as Checked: verified by a taxonomic editorActinotaenium diplosporum (P.Lundell) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium dubovianum Lütkemüller, 1910 accepted as Checked: verified by a taxonomic editorCosmarium hornavanense var. dubovianum (Lütkemüller) Ruzicka, 1949
Species Checked: verified by a taxonomic editorCosmarium eboracense West, 1889 accepted as Checked: verified by a taxonomic editorCosmarium gayanum var. eboracense (West) West & G.S.West, 1912
Species Checked: verified by a taxonomic editorCosmarium einarteilingii Willi Krieger ex Gerloff accepted as Checked: verified by a taxonomic editorActinotaenium truncatum (Brébisson ex Ralfs) Teiling ex Ruzicka & Pouzar, 1978
Species Checked: verified by a taxonomic editorCosmarium elegans J.Roy & Bisset, 1894 accepted as Checked: verified by a taxonomic editorCosmarium tetragonum var. elegans (Roy & Bisset) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium elfvingii Raciborski, 1885 accepted as Checked: verified by a taxonomic editorCosmarium rectangulare var. hexagonum (Elfving) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium ellipsoideum Elfving accepted as Checked: verified by a taxonomic editorCosmarium contractum var. ellipsoideum (Elfving) West & G.S.West, 1902
Species Checked: verified by a taxonomic editorCosmarium elongatum Raciborski accepted as Checked: verified by a taxonomic editorActinotaenium elongatum (Raciborski) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium euastroides Delponte accepted as Checked: verified by a taxonomic editorCosmarium angulosum var. euastroides (Delponte) Krieger & Gerloff
Species Checked: verified by a taxonomic editorCosmarium gemmatum Brébisson, 1840 accepted as Checked: verified by a taxonomic editorEuastrum gemmatum (Brébisson) Ralfs, 1844
Species Checked: verified by a taxonomic editorCosmarium gemmiferum Brebisson, 1856 accepted as Checked: verified by a taxonomic editorCosmarium botrytis var. gemmiferum (Brébisson) Nordstedt, 1888
Species Checked: verified by a taxonomic editorCosmarium genuosum Nordstedt, 1887 accepted as Checked: verified by a taxonomic editorCosmarium subquadratum var. genuosum (Nordstedt) Krieger & Gerloff, 1969
Species Checked: verified by a taxonomic editorCosmarium globosum Bulnheim, 1861 accepted as Checked: verified by a taxonomic editorActinotaenium globosum (Bulnheim) K.Förster ex Compère, 1976
Species Checked: verified by a taxonomic editorCosmarium granulusculum Roy & Bissett, 1894 accepted as Checked: verified by a taxonomic editorCosmarium punctulatum var. granulusculum (Roy & Bissett) West & West, 1908
Species Checked: verified by a taxonomic editorCosmarium gregorii Roy & Bisset, 1890 accepted as Checked: verified by a taxonomic editorCosmarium subprotumidum var. gregorii (Roy & Bisset) West & G.S.West, 1900
Species Checked: verified by a taxonomic editorCosmarium hexagonum Elfving accepted as Checked: verified by a taxonomic editorCosmarium rectangulare var. hexagonum (Elfving) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium hexagonum Elfving, 1881 accepted as Checked: verified by a taxonomic editorCosmarium rectangulare var. hexagonum (Elfving) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium hexastichum P.Lundell, 1871 accepted as Checked: verified by a taxonomic editorCosmarium quadrifarium f. hexastichum (P.Lundell) Nordstedt, 1889
Species Checked: verified by a taxonomic editorCosmarium hibernicum West, 1892 accepted as Checked: verified by a taxonomic editorActinotaenium hibernicum (West) Ružicka, 1978
Species Checked: verified by a taxonomic editorCosmarium inaequalipellicum West & G.S.West, 1895 accepted as Checked: verified by a taxonomic editorCosmarium pseudoretusum var. inaequalipellicum (West & G.S.West) Willi Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium incrassatum Playfair accepted as Checked: verified by a taxonomic editorCosmarium contractum var. incrassatum A.M.Scott & Prescott, 1958
Species Checked: verified by a taxonomic editorCosmarium incurvum Skuja, 1956 accepted as Checked: verified by a taxonomic editorCosmarium skujae Willi Krieger & Gerloff, 1965
Species Checked: verified by a taxonomic editorCosmarium insigne Schmidle, 1893 accepted as Checked: verified by a taxonomic editorCosmarium pseudoinsigne Prescott, 1981
Species Checked: verified by a taxonomic editorCosmarium intermedium (F.Gay) De Toni accepted as Checked: verified by a taxonomic editorEuastrum transiens F.Gay, 1884
Species Checked: verified by a taxonomic editorCosmarium klebsii Gutwinski, 1892 accepted as Checked: verified by a taxonomic editorCosmarium nitidulum De Notaris, 1867
Species Checked: verified by a taxonomic editorCosmarium latum Brébisson, 1856 accepted as Checked: verified by a taxonomic editorCosmarium conspersum var. latum (Brébisson) West & G.S.West, 1912
Species Checked: verified by a taxonomic editorCosmarium luetkemuelleri Grönblad accepted as Checked: verified by a taxonomic editorActinotaenium minutissimum (Nordstedt) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium maculatum Turner accepted as Checked: verified by a taxonomic editorCosmarium javanicum Nordstedt, 1880
Species Checked: verified by a taxonomic editorCosmarium mamillomarginatum Grönblad, 1942 accepted as Checked: verified by a taxonomic editorCosmarium alpigenum Messikommer, 1942
Species Checked: verified by a taxonomic editorCosmarium minutissimum Heimerl, 1891 accepted as Checked: verified by a taxonomic editorCosmarium heimerlii West, 1895
Species Checked: verified by a taxonomic editorCosmarium minutum Delponte, 1877 accepted as Checked: verified by a taxonomic editorCosmarium contractum var. minutum (Delponte) Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium nordstedtianum Reinsch, 1875 accepted as Checked: verified by a taxonomic editorCosmarium cyclicum var. nordstedtianum (Reinsch) West & G.S.West, 1905
Species Checked: verified by a taxonomic editorCosmarium obcuneatum West, 1892 accepted as Checked: verified by a taxonomic editorActinotaenium obcuneatum (West) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium palangula Brébisson ex Ralfs, 1848 accepted as Checked: verified by a taxonomic editorActinotaenium palangula (Brébisson ex Ralfs) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium perminutum G.S.West, 1914 accepted as Checked: verified by a taxonomic editorActinotaenium perminutum (G.S.West) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium polonicum Raciborski, 1884 accepted as Checked: verified by a taxonomic editorCosmarium vogesiacum var. alpinum f. polonicum (Raciborski) Laporte, 1931
Species Checked: verified by a taxonomic editorCosmarium polymazum Nordstedt, 1873 accepted as Checked: verified by a taxonomic editorCosmarium monomazum var. polymazum Nordstedt, 1873
Species Checked: verified by a taxonomic editorCosmarium portuense J.Sampaio, 1922 accepted as Checked: verified by a taxonomic editorCosmarium laeve Rabenhorst, 1868
Species Checked: verified by a taxonomic editorCosmarium pseudohibernicum Lutkemuller, 1910 accepted as Checked: verified by a taxonomic editorActinotaenium diplosporum (P.Lundell) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium pusillum (Brébisson) W.Archer, 1861 accepted as Checked: verified by a taxonomic editorHeimansia pusilla (L.Hilse) Coesel, 1993
Species Checked: verified by a taxonomic editorCosmarium pygmaeum W.Archer, 1864 accepted as Checked: verified by a taxonomic editorSphaerozosma pygmaeum (W.Archer) Rabenhorst, 1968
Species Checked: verified by a taxonomic editorCosmarium quadrangulatum Hantzsch, 1860 accepted as Checked: verified by a taxonomic editorCosmarium biretum Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium quadrigemme Playfair accepted as Unreviewed: has not been verified by a taxonomic editorCosmarium submammilliferum var. quadrigemme (Playfair) Playfair
Species Checked: verified by a taxonomic editorCosmarium regelianum (Nägeli) Brébisson, 1856 accepted as Checked: verified by a taxonomic editorActinotaenium curtum (Brebisson ex Ralfs) Teiling, 1978
Species Checked: verified by a taxonomic editorCosmarium rostafinskii Gutwinski, 1890 accepted as Checked: verified by a taxonomic editorCosmarium speciosum var. rostafinskii (Gutwinski) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium rufescens (Cleve) Lütkemüller, 1960 accepted as Checked: verified by a taxonomic editorActinotaenium rufescens (Cleve) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium scenedesmus Delponte, 1877 † accepted as Checked: verified by a taxonomic editorCosmarium depressum (Nägeli) P.Lundell, 1871
Species Checked: verified by a taxonomic editorCosmarium schliephackeanum Grunow accepted as Checked: verified by a taxonomic editorCosmarium pygmaeum W.Archer, 1864
Species Checked: verified by a taxonomic editorCosmarium schliephackianum Grunow accepted as Checked: verified by a taxonomic editorCosmarium pygmaeum W.Archer, 1864
Species Checked: verified by a taxonomic editorCosmarium septentrionale Croasdale, 1973 accepted as Checked: verified by a taxonomic editorCosmarium subprotumidum var. septentrionale (Croasdale) Coesel, 1989
Species Checked: verified by a taxonomic editorCosmarium sinuosum P.Lundell, 1871 accepted as Checked: verified by a taxonomic editorCosmarium decedens var. sinuosum (P.Lundell) Raciborski, 1889
Species Checked: verified by a taxonomic editorCosmarium spectabile De Notaris, 1867 accepted as Checked: verified by a taxonomic editorCosmarium caelatum var. spectabile (De Notaris) Nordstedt, 1876
Species Checked: verified by a taxonomic editorCosmarium stagnale J.Sampaio, 1922 accepted as Checked: verified by a taxonomic editorCosmarium granatum var. delpontei Gutwinski, 1891
Species Checked: verified by a taxonomic editorCosmarium striatum Boldt, 1885 accepted as Checked: verified by a taxonomic editorCosmarium humile var. striatum (Boldt) Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium subcoliferum Grondlad, 1920 accepted as Checked: verified by a taxonomic editorCosmarium refringens var. subcoliferum (Grondblad) Willi Krieger & Gerloff, 1962
Species Checked: verified by a taxonomic editorCosmarium subglobosum Nordstedt, 1878 accepted as Checked: verified by a taxonomic editorActinotaenium subglobosum (Nordstedt) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium sublatum Nordstedt, 1888 accepted as Checked: verified by a taxonomic editorCosmarium quadrum var. sublatum (Nordstedt) West & G.S.West, 1912
Species Checked: verified by a taxonomic editorCosmarium sublobatum (Ralfs) W.Archer, 1861 accepted as Checked: verified by a taxonomic editorEuastrum sublobatum Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium subnasutum Raciborski, 1885 accepted as Checked: verified by a taxonomic editorCosmarium nasutum var. subnasutum (Raciborski) Nordstedt, 1888
Species Checked: verified by a taxonomic editorCosmarium subnotabile Wille, 1879 accepted as Checked: verified by a taxonomic editorCosmarium notabile var. subnotabile (Wille) Coesel, 2007
Species Checked: verified by a taxonomic editorCosmarium suborthogonum Raciborski accepted as Checked: verified by a taxonomic editorCosmarium impressulum var. impressulum f. suborthogonum (Raciborski) West & G.S.West, 1908
Species Checked: verified by a taxonomic editorCosmarium subpunctulatum Nordstedt, 1887 accepted as Checked: verified by a taxonomic editorCosmarium punctulatum var. subpunctulatum (Nordstedt) Børgesen, 1894
Species Checked: verified by a taxonomic editorCosmarium substriatum Nordstedt, 1889 accepted as Checked: verified by a taxonomic editorCosmarium humile var. substriatum (Nordstedt) Schmidle, 1895
Species Checked: verified by a taxonomic editorCosmarium subtile (West) Lütkemuller accepted as Checked: verified by a taxonomic editorActinotaenium subtile (West & G.S.West) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium succisum West, 1892 accepted as Checked: verified by a taxonomic editorCosmarium tinctum var. succisum (West & G.S.West) West & G.S.West, 1902
Species Checked: verified by a taxonomic editorCosmarium sulcatum Nordstedt, 1878 accepted as Checked: verified by a taxonomic editorCosmarium pseudoprotuberans var. sulcatum (Nordstedt) Coesel, 1991
Species Checked: verified by a taxonomic editorCosmarium tessellatum (Delponte) Nordstedt accepted as Checked: verified by a taxonomic editorCosmarium striolatum (Nägeli) W.Archer, 1861
Species Checked: verified by a taxonomic editorCosmarium tortum Lagerheim & Nordstedt ex Wittrock accepted as Unreviewed: has not been verified by a taxonomic editorStaurastrum tortum (Lagerheim & Nordstedt) West & G.S.West
Species Checked: verified by a taxonomic editorCosmarium trachypolum West & G.S.West accepted as Checked: verified by a taxonomic editorActinotaenium trachypolum (West & G.S.West) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium truncatum Corda, 1839 accepted as Checked: verified by a taxonomic editorMicrasterias truncata (Corda) Brébisson ex Ralfs, 1848
Species Checked: verified by a taxonomic editorCosmarium turgidum Brébisson ex Ralfs, 1848 accepted as Checked: verified by a taxonomic editorActinotaenium turgidum (Brébisson ex Ralfs) Teiling, 1954
Species Checked: verified by a taxonomic editorCosmarium viride Corda ex Joshua, 1885 accepted as Checked: verified by a taxonomic editorActinotaenium colpopelta (Brébisson ex W.Archer) Compère, 1976
Species Checked: verified by a taxonomic editorCosmarium viridis (Corda) Joshua, 1885 accepted as Checked: verified by a taxonomic editorActinotaenium cordanum (Brébisson) Ruzicka & Pouzar, 1978
Species Checked: verified by a taxonomic editorCosmarium wollei (West & G.S.West) Grönblad accepted as Checked: verified by a taxonomic editorActinotaenium wollei (West & G.S.West) Teiling, 1954
Links Unreviewed: has not been verified by a taxonomic editorPublished in AlgaeBase Logo AlgaeBase 
Unreviewed: has not been verified by a taxonomic editorTo GenBank  
Unreviewed: has not been verified by a taxonomic editorTo ITIS
Note 
From editor or global species database
Checked: verified by a taxonomic editorLSID urn:lsid:algaebase.org:taxname:6872 [details]
LSID urn:lsid:marinespecies.org:taxname:478557
Taxonomic
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2010-06-04 10:38:53Z  created  Guiry, Michael D.
  
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  Citation: Guiry, Michael D. (2014). Cosmarium Corda ex Ralfs, 1848. In: Guiry, M.D. & Guiry, G.M. (2014). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=478557 on 2014-10-24
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