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names in breadcrumbs
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Plants
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Zygnemophyceae
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Desmidiaceae
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Cosmarium Corda ex Ralfs 1848
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names
Scientific Names
Preferred Names
Cosmarium Corda ex Ralfs 1848
Genus recognized by
Dynamic Hierarchy Version 2 1
Reference taxon from NCBI Taxonomy
Cosmarium
Genus recognized by
United Kingdom Species List
,
South Atlantic Species List
,
North Pacific Species List
,
North Atlantic Species List
,
The Netherlands Species List
,
Sweden Species List
,
Delete- old US Species List
,
New Zealand Species List
,
Ireland Species List
,
Kenya Species List
,
Kyrgyzstan Species List
,
Mexico Species List
,
Myanmar Species List
,
France Species List
,
Guatemala Species List
,
Finland Species List
,
Ecuador Species List
,
Germany Species List
,
Indonesia Species List
,
Belgium Species List
,
Czech Republic Species List
,
Colombia Species List
,
Austria Species List
,
Australia Species List
,
Norway Species List
,
Brazil Species List
,
Canada Species List
,
Greenland Species List
,
Japan Species List
,
Protists in Singapore
,
Panama Species List
,
Wikidata
,
United States Species List
,
Global Biotic Interactions
, and
Wikimedia Commons
Cosmarium
Recognized by
iNaturalist
,
Arctic Algae
,
BioImages, the virtual fieldguide, UK
,
OBIS environmental data records
,
Olenina et al 2006
,
Flickr Group
, and
Flickr Group
Cosmarium Corda ex Ralfs 1848
Genus recognized by
GBIF classification
Cosmarium Desmids Dsmidos Conjugate Conjugadas Desmidiaceae Cosmarium
Recognized by
Flickr Group
Alternative Names
Cosmarium abbreviatum
Raciborski
Doubtful according to
GBIF classification
(Possible variant of Cosmarium abbreviatum Nordst.)
Cosmarium abbreviatum
Reciborski
Doubtful according to
GBIF classification
(Possible variant of Cosmarium abbreviatum Nordst.)
Cosmarium amoenum
Brebisson
Doubtful according to
GBIF classification
(Possible variant of Cosmarium amoenum Bréb. ex Ralfs)
Cosmarium anceps
Lund.
Doubtful according to
GBIF classification
(Possible variant of Cosmarium anceps Lind.)
Cosmarium asphaerosporum
Nordstedt
Doubtful according to
GBIF classification
(Possible variant of Cosmarium asphaerosporum Wittr.)
Cosmarium bioculatum
Brebisson
Doubtful according to
GBIF classification
(Possible variant of Cosmarium bioculatum Bréb. ex Ralfs)
Cosmarium bioculatum
Chen
Doubtful according to
GBIF classification
(Possible variant of Cosmarium bioculatum Bréb. ex Ralfs)
Cosmarium boeckii
var.
isthmolaeve
Skuja
Homotypic synonym according to
GBIF classification
Cosmarium botrytis
Hong
Doubtful according to
GBIF classification
(Possible variant of Cosmarium botrytis Menegh. ex Ralfs, 1848)
Cosmarium botrytis
Meneghini
Doubtful according to
GBIF classification
(Possible variant of Cosmarium botrytis Menegh. ex Ralfs, 1848)
Cosmarium brebissonii
Menegh.
Doubtful according to
GBIF classification
(Possible variant of Cosmarium brebissonii Menegh. ex Ralfs)
Cosmarium broomei
Thwaites
Doubtful according to
GBIF classification
(Possible variant of Cosmarium broomei Thwaites ex Ralfs)
Cosmarium calodermum
Gay.
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium Corda ex Ralfs, 1848)
Cosmarium connatum
Brebisson
Doubtful according to
GBIF classification
(Possible variant of Cosmarium connatum Bréb. ex Ralfs)
Cosmarium contractum
var.
indentatum
(Grönblad) Willi Krieger & Gerloff 1962
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium contractum Kirchn.)
Cosmarium cucumis
Corda
Homotypic synonym according to
GBIF classification
Cosmarium cymatopleurum
Nordst. 1872
Doubtful according to
GBIF classification
(Possible variant of Cosmarium cymatopleurum West)
Cosmarium dentiferum
Corda
Doubtful according to
GBIF classification
(Possible variant of Cosmarium dentiferum Corda ex Nordstedt, 1888)
Cosmarium depressum
(Nägeli) P. Lundell
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium Corda ex Ralfs, 1848)
Cosmarium fontigenum
Notfdy
Doubtful according to
GBIF classification
(Possible variant of Cosmarium fontigenum Nordst.)
Cosmarium formosulum
Hoff
Doubtful according to
GBIF classification
(Possible variant of Cosmarium formosulum R.T.Hoff. ex Nordst.)
Cosmarium formosulum
Schmidle
Doubtful according to
GBIF classification
(Possible variant of Cosmarium formosulum R.T.Hoff. ex Nordst.)
Cosmarium granatum
Brébisson
Doubtful according to
GBIF classification
(Possible variant of Cosmarium granatum Bréb. ex Ralfs)
Cosmarium hornavanense
Gutw. 1909
Doubtful according to
GBIF classification
(Possible variant of Cosmarium hornavanense Ruzicka)
Cosmarium humile
(Gay) Nordstedt
Doubtful according to
GBIF classification
(Possible variant of Cosmarium humile Nordst. ex De Toni)
Cosmarium margaritiferum
Menegh.
Doubtful according to
GBIF classification
(Possible variant of Cosmarium margaritiferum Menegh. ex Ralfs)
Cosmarium meneghinii
Brebisson
Doubtful according to
GBIF classification
(Possible variant of Cosmarium meneghinii Bréb. ex Ralfs)
Cosmarium moenum
Breb.
Homotypic synonym according to
GBIF classification
Cosmarium nordstedtii
Delponte 1878
Doubtful according to
GBIF classification
(Possible variant of Cosmarium nordstedtii Delfs)
Cosmarium notabile
Bréb. 1856
Doubtful according to
GBIF classification
(Possible variant of Cosmarium notabile De Bary)
Cosmarium nymannianum
Groenblad
Doubtful according to
GBIF classification
(Possible variant of Cosmarium nymannianum Grunow)
Cosmarium obtusatum
Schidle
Doubtful according to
GBIF classification
(Possible variant of Cosmarium obtusatum Schmidle)
Cosmarium phaseolus
Bréb.
Doubtful according to
GBIF classification
(Possible variant of Cosmarium phaseolus Bréb. ex Ralfs, 1848)
Cosmarium pileolatum
Bréb.
Homotypic synonym according to
GBIF classification
Cosmarium pseudopyramidatum
var.
maximum
Börgesen
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium pseudopyramidatum P.Lundell)
Cosmarium pusillum
Fresenius
Doubtful according to
GBIF classification
(Possible variant of Cosmarium pusillum (Brebisson) Archer)
Cosmarium pyramidatum
Bréb. ex Ralfs 1848
Doubtful according to
GBIF classification
(Possible variant of Cosmarium pyramidatum Bréb.)
Cosmarium sportella
Bréb. ex Kütz. 1849
Doubtful according to
GBIF classification
(Possible variant of Cosmarium sportella Brebisson)
Cosmarium tenellum
Brébisson
Homotypic synonym according to
GBIF classification
Cosmarium truncatellum
Perty
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium Corda ex Ralfs, 1848)
Cosmarium undulatum
Corda
Doubtful according to
GBIF classification
(Possible variant of Cosmarium undulatum Corda ex Ralfs, 1848)
Cosmarium vogesiacum
f.
polonicum
(Racib.) Laporte 1931
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Cosmarium vogesiacum Lemaire, 1883)
Dysphinctium notabile
(De Bary) Hansgirg
Homotypic synonym according to
GBIF classification
(Originally found in sources as synonym of Cosmarium notabile Bréb., 1856)
Euastrum abruptum
var.
lagoense
(Nordst.) Willi Krieg.
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Euastrum abruptum Nordst.)
Euastrum sublobatum
Brebisson
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Euastrum Ehrenberg ex Ralfs, 1848)
Micrasterias truncata
var.
crenata
(Ralfs) Gronblad
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Micrasterias truncata (Corda) Bréb. ex Ralfs)
Staurastrum pyramidatum
var.
transitorium
Heimerl.
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Staurastrum pyramidatum West)
Staurastrum teliferum
var.
ordinatum
F. C. E. Børgesen 1894
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Staurastrum teliferum Ralfs, 1848)
Staurodesmus lobatus
(Børgesen) Bourr.
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Staurodesmus Teiling, 1948)
Staurodesmus maximus
(Borge) Teiling
Homotypic synonym according to
GBIF classification
(Originally found in sources as accepted taxon within Staurodesmus Teiling, 1948)
? depressum Nägeli
Homotypic synonym according to
GBIF classification
(Originally found in sources as doubtful taxon within Desmidiaceae)
? lagoense Nordst.
Homotypic synonym according to
GBIF classification
(Originally found in sources as doubtful taxon within Desmidiaceae)
Cosmarium
Harvest ancestor according to
GBIF classification
,
GBIF classification
,
Global Biotic Interactions
,
Global Biotic Interactions
,
Global Biotic Interactions
,
NMNH type specimens
,
NMNH type specimens
,
Flickr Group
,
Flickr Group
,
Flickr Group
,
TreatmentBank
, and
TreatmentBank
Common Names
Korean
장구말
preferred
Recognized by
Wikidata
Persian
آذینچه
preferred
Recognized by
Wikidata
Russian
космариум
preferred
Recognized by
Wikidata
Yue
鼓藻屬
preferred
Recognized by
Wikidata
show one more language
hide one language
Curated hierarchies for Cosmarium Corda ex Ralfs 1848
Dynamic Hierarchy Version 2 1
Life
Cellular Organisms
Eukaryota
Archaeplastida
Chloroplastida
Streptophyta
Zygnemophyceae
Zygnematophycidae
Desmidiales
Desmidiaceae
Cosmarium Corda ex Ralfs 1848
(this page)
Cosmarium abbreviatum Raciborski 1885
Cosmarium abruptum P. Lundell 1871
Cosmarium abscissum Lütekemüller
Cosmarium achondroides G. S. West
Cosmarium actinophorum Brühl & Biswas 1926
Cosmarium aculeatum Wolle 1885
Cosmarium acutangulum Insam & Krieger 1936
Cosmarium acutigonum D. B. Williamson 1999
Cosmarium adoxum West & G. S. West 1897
Cosmarium adpressum Noda & Skvortzov 1969
Cosmarium advolatum Noda & Skvortzov
Cosmarium aequale W. B. Turner
Cosmarium aequatum West & G. S. West
Cosmarium aequinoctiale West & G. S. West
Cosmarium aethiopicum West & G. S. West
Cosmarium affine Raciborski
Cosmarium africanum West & G. S. West
Cosmarium aitchisonii Schaarschmidt
Cosmarium alaskanum Croasdale
Cosmarium allorgei Bourrelly
Cosmarium allum Noda & Skvortzov
Cosmarium alpestre J. Roy & Bisset 1893
Cosmarium alpicolum Schmidle 1895
Cosmarium alpigenum Messikommer 1942
Cosmarium alpinum Raciborski
Cosmarium ambadiense R. L. Grönblad & A. M. Scott 1958
Cosmarium americanum Lagerheim
Cosmarium amesii Cushman
Cosmarium amoenum
Cosmarium amoeviforme Hirano
Cosmarium amphichondrum Skuja
Cosmarium amplum Nordstedt 1887
Cosmarium amurense Skvortzov
Cosmarium ananense Hinode
Cosmarium anax W. West & G. S West 1895
Cosmarium anceps P. Lundell 1871
Cosmarium andinum A. Couté & A. Iltis
Cosmarium angolense W. West & G. S West
Cosmarium angulare L. N. Johnson 1894
Cosmarium angulatum (Perty) Rabenhorst 1868
Cosmarium angulosum
Cosmarium anisochondrum Nordstedt 1878
Cosmarium annulatum (Nägeli) de Bary 1849
Cosmarium antarcticum Gain
Cosmarium anthophorum Couté & Rousselin
Cosmarium antioquiense G. S West
Cosmarium antiquorum Noda & Skvortzov
Cosmarium apertiusculum Skuja
Cosmarium aphanichondrum Nordstedt
Cosmarium apiatum Scott & Prescott
Cosmarium arcanum Hinode
Cosmarium arctoum Nordstedt 1875
Cosmarium arcuatum Krieger & Gerloff
Cosmarium areguense Borge
Cosmarium ariston Skuja
Cosmarium armatum Brebisson
Cosmarium armillatum W. B. Turner
Cosmarium arnellii Boldt 1885
Cosmarium arrense Kouwets 1997
Cosmarium arrosum Nordstedt
Cosmarium arthrodesmiforme Borge
Cosmarium askenasyi
Cosmarium asperum M. Dingley 2004
Cosmarium asphaerosporum Wittrock 1879
Cosmarium asterophorum Skuja
Cosmarium asterosporum Coesel 1989
Cosmarium asymmetricum Rich 1935
Cosmarium atlanthoideum Delponte
Cosmarium auriculatum
Cosmarium avalonense Woodhead & Tweed
Cosmarium aversiforme Krieger & Gerloff
Cosmarium aversum W. West & G. S West 1895
Cosmarium baccatum Scott & Gronblad 1957
Cosmarium bacciferum W. B. Turner
Cosmarium baileyi Wolle 1884
Cosmarium baillyanum Brébisson ex Meneghini
Cosmarium balteum W. West & G. S West
Cosmarium bantamianum Bernard
Cosmarium barbaricum Claassen
Cosmarium baronii W. West & G. S West 1895
Cosmarium barrackporeanum W. B. Turner
Cosmarium basilicum G. S. West 1899
Cosmarium basiornatum (Grönblad) Coesel
Cosmarium basituberculatum Borge
Cosmarium beatum W. West & G. S West 1895
Cosmarium beckii Gutwinski 1897
Cosmarium bellum W. West & G. S West 1895
Cosmarium bengalense W. B. Turner
Cosmarium berryense Kouwets 1998
Cosmarium bewsii Fritsch & Rich
Cosmarium biauritum Nordstedt
Cosmarium bicardia Reinsch 1875
Cosmarium biclavatum Borge
Cosmarium bicrenatum W. B. Turner
Cosmarium bicuneatum (F. Gay) Nordstedt 1889
Cosmarium bicuspidatum Corda
Cosmarium bidentatum W. B. Turner
Cosmarium bifarium W. Joshua
Cosmarium bifurcatum Schmidle
Cosmarium bigemma Raciborski
Cosmarium bigibbum Schmidle
Cosmarium bigranulatum O. Andersson
Cosmarium bilunatum W. West & G. S West
Cosmarium bimamillatum Krieger
Cosmarium bimarginatum Borge
Cosmarium binerve P. Lundell 1871
Cosmarium binodulum Reinsch
Cosmarium binum
Cosmarium biobconicum Brühl & Biswas
Cosmarium bioculatum
Cosmarium bipapillatum (West) West & G. S. West 1894
Cosmarium bipaxillum W. West & G. S West
Cosmarium bipes Corda
Cosmarium bipunctatum Børgesen 1890
Cosmarium bireme Nordstedt 1888
Cosmarium biretiforme G. S. West
Cosmarium biretum
Cosmarium biscarrossense Capdevielle 1983
Cosmarium biscrobiculatum W. West & G. S West
Cosmarium biseriatum Krieger
Cosmarium bisphaericum
Cosmarium bissetii W. B. Turner
Cosmarium bitrapezoideum Brühl & Biswas
Cosmarium bitriangulum Grönblad 1945
Cosmarium bituberculatum Fritsch & Rich
Cosmarium bivertex Raciborski
Cosmarium blanjinense Pevalek
Cosmarium blonskii Raciborski
Cosmarium blyttii
Cosmarium boeckii Wille 1880
Cosmarium boergesenii
Cosmarium bohemicum Roubal
Cosmarium bohlini Schmidle
Cosmarium boitierense Kouwets 1998
Cosmarium boldtii W. B. Turner
Cosmarium bonum Noda & Skvortzov
Cosmarium boomei Thwaites
Cosmarium botesii Claassen
Cosmarium botrytis
Cosmarium brancoi Bicudo
Cosmarium braunii Reinsch 1866
Cosmarium brebissonii Meneghini ex Ralfs 1848
Cosmarium broomei
Cosmarium buchansianum Woodhead & Tweed
Cosmarium bulgaricum Roubal
Cosmarium bulliferum Ružicka
Cosmarium burkillii West & G. S. West 1907
Cosmarium caelatum
Cosmarium caffrorum Claassen
Cosmarium calamistratum Grönblad
Cosmarium calcareum Wittrock 1872
Cosmarium calculus Coesel 2007
Cosmarium callistum W. & G. S. West
Cosmarium callosissimum A. M. Scott & Grönblad 1957
Cosmarium calodermum (Gay) De Toni
Cosmarium calvatum Noda & Skvortzov
Cosmarium cambodiense Hirano
Cosmarium cambricum Cooke & Wills
Cosmarium canadense Irenee-Marie
Cosmarium canaliculatum West & G. S. West 1896
Cosmarium capitulum J. Roy & Bissett 1886
Cosmarium carinatum Noda & Skvortzov
Cosmarium carinthiacum Lütkemuller 1942
Cosmarium carnubiense West & West
Cosmarium cataractarum (Raciborski) Eichler 1895
Cosmarium cedercreutzii Grönblad
Cosmarium centrosphinctum W. B. Turner
Cosmarium centrotaphridium W. & G. S. West
Cosmarium ceratophoroides Bourrelly
Cosmarium ceratophorum Lütkemüller
Cosmarium certum Noda & Skvortzov
Cosmarium ceylanicum West & G. S. West
Cosmarium chondriophorum Brühl & Biswas
Cosmarium cinctutum Nordstedt 1875
Cosmarium circulare Reinsch 1867
Cosmarium ciskeium D. B. Williamson
Cosmarium claviferum J. A. Cushman
Cosmarium clepsydra Nordstedt 1870
Cosmarium clippertonensis W. R. Taylor
Cosmarium coarctatum West 1892
Cosmarium coliferum Lagerheim
Cosmarium collectorense Playfair
Cosmarium coloratum W. B. Turner
Cosmarium columbianum G. S. West
Cosmarium commissurale Brébisson ex Ralfs 1848
Cosmarium compactum Noda & Skvortzov
Cosmarium complanatum Skvortzov & Noda
Cosmarium concentricum W. B. Turner
Cosmarium conglobatum Skvortzov & Noda
Cosmarium conicoides Krieger & Gerloff
Cosmarium conicum West & G. S. West 1895
Cosmarium connatum
Cosmarium connectum Reinsch 1890
Cosmarium cononophorum W. & G. S. West
Cosmarium conspersum Ralfs 1848
Cosmarium constrictum Delponte
Cosmarium contractiforme R. L. Grönblad & A. M. Scott 1958
Cosmarium contractum
Cosmarium controversum West 1890
Cosmarium conwentzii Steinecke
Cosmarium corbula (Brébisson) Brébisson 1856
Cosmarium cornutum Corda
Cosmarium corona Gaidukov
Cosmarium coronatum Wills 1881
Cosmarium corriense Bisset 1894
Cosmarium corrugatum Scott & Grönblad 1957
Cosmarium corsavaggense Skuja 1964
Cosmarium corumbense Borge
Cosmarium cosmarioides (De Bary) J. Rzicka
Cosmarium cosmetum West & West
Cosmarium cosmotiforme C.-C. Jao 1949
Cosmarium costatum
Cosmarium craspedopleurum W. B. Turner
Cosmarium crassangulatum Borge 1894
Cosmarium crassidentatum Bernard
Cosmarium crassum Brebisson
Cosmarium crenatiforme Grönblad
Cosmarium crenatum
Cosmarium creniferum W. B. Turner
Cosmarium crenulatum Nägeli 1849
Cosmarium creperum West & G. S. West 1895
Cosmarium crispatum Hirano
Cosmarium cristatum Ralfs 1848
Cosmarium croasdaleae Grönblad
Cosmarium cruciatum Brébisson 1856
Cosmarium ctenoideum W. B. Turner
Cosmarium cucumis
Cosmarium cucurbitaeforme Rabanus
Cosmarium cuneatum Joshua
Cosmarium cunningtonii G. S. West 1907
Cosmarium cupiforme D. B. Williamson 1999
Cosmarium cuspidatum Krieger & Gerloff 1969
Cosmarium cyathiforme West & West
Cosmarium cycladatum W. B. Turner
Cosmarium cyclicum
Cosmarium cyclindricum Ralfs ex Ralfs 1848
Cosmarium cyclops F. A. C. Kouwets 2001
Cosmarium cylindricoideum A. M. Scott & Prescott
Cosmarium cylindricum Ralfs 1848
Cosmarium cymatium (West & G. S. West) Willi Krieger & Gerloff 1962
Cosmarium cymatonotophorum West 1892
Cosmarium cymatopleurum Nordstedt 1872
Cosmarium danicum Børgesen
Cosmarium dartmouthii Suxena & Venkateswarlu
Cosmarium davidsonii J. Roy & Bissett 1893
Cosmarium debaryi
Cosmarium decedens
Cosmarium decoratum West & G. S. West 1895
Cosmarium decorum (F. Gay) De Toni
Cosmarium decussare A. J. Brook & D. B. Williamson 1983
Cosmarium deltoides Corda
Cosmarium demangeonii Mougeot 1887
Cosmarium denboeri Meesters & Coesel 2007
Cosmarium denotarisii (Wittrock) Nordstedt 1876
Cosmarium densegranulatum Skuja
Cosmarium dentatum
Cosmarium denticulatum Borge
Cosmarium dentiferum Corda 1840
Cosmarium depauperatum Nordstedt 1878
Cosmarium depressum
Cosmarium diadematum Schaarschmidt 1883
Cosmarium dichondroides Grönblad 1962
Cosmarium dichondrum West & G. S. West 1895
Cosmarium dickii Coesel 1989
Cosmarium didymochondrum Nordstedt 1876
Cosmarium didymoprotupsum West & G. S. West 1908
Cosmarium difficile
Cosmarium difficillimum Playfair
Cosmarium difficiloides Kouwets 2001
Cosmarium dilatatum
Cosmarium diplodesmium Skuja 1964
Cosmarium discrepans Stastny & Kouwets 2012
Cosmarium dispersum L. N. Johnson
Cosmarium distichum Nordstedt 1887
Cosmarium divergens Krieger
Cosmarium divergentiforme Hirano
Cosmarium doidgei Fritsch & Rich
Cosmarium dolabriforme Brandham
Cosmarium doliforme West & West
Cosmarium donnellii Wolle
Cosmarium dorsitruncatum (Nordstedt) G. S. West 1909
Cosmarium dovrense Nordstedt 1879
Cosmarium dubium Borge
Cosmarium dusenii Borge
Cosmarium dybowskii Gutwinski 1896
Cosmarium echinodermum Hinode
Cosmarium eductum J. Roy & Bisset 1888
Cosmarium eichlerianum (Grönblad) Messikommer 1957
Cosmarium elaboratum West & West 1895
Cosmarium elegantissimum
Cosmarium eloiseanum Wolle 1883
Cosmarium emarginatum Rabenhorst 1868
Cosmarium enontekiense Grönblad
Cosmarium entochondrum West & G. S. West 1908
Cosmarium eriense Taft 1945
Cosmarium erosum Delponte 1877
Cosmarium etchachanense J. Roy & Bisset 1894
Cosmarium eutelium Skuja 1976
Cosmarium everettense Wolle 1883
Cosmarium exasperatum Joshua
Cosmarium excavatum Nordstedt 1870
Cosmarium excentricum Borge
Cosmarium exiguum
Cosmarium eximium West & West 1895
Cosmarium faberi Lütkemüller
Cosmarium fastidiosum West & G. S. West 1897
Cosmarium favum West & G. S. West
Cosmarium fenestratum Corda
Cosmarium fictopraemorsum Kurt Förster 1972
Cosmarium flavum Roy & Bisset 1894
Cosmarium floridarum (West & G. S. West) Lütkemüller
Cosmarium fluviatile Playfair
Cosmarium fontarabiense
Cosmarium fontigenum Nordstedt 1878
Cosmarium forceps Brühl & Biswas
Cosmarium formosulum
Cosmarium foveatum Schmidle 1898
Cosmarium franzstonii Taft 1945
Cosmarium freemanii West & West
Cosmarium fritschii Hodgetts
Cosmarium fuellebornei Schmidle 1902
Cosmarium furcatospermum
Cosmarium furcatum K. Förster & Eckert 1964
Cosmarium fuseense Hirano
Cosmarium fusum Roy & Bisset 1886
Cosmarium galeritum
Cosmarium galiciense
Cosmarium galpinii Claassen
Cosmarium gangense W. B. Turner
Cosmarium garrolense J. Roy & Bisset 1894
Cosmarium gauthierae St'asny & Neustupa 2008
Cosmarium gayanum De Toni 1889
Cosmarium geminatum P. Lundell 1871
Cosmarium gemma R. L. Grönblad & A. M. Scott 1958
Cosmarium geometricum West & G. S. West 1895
Cosmarium georgicum Reinsch 1890
Cosmarium gerdae Compère 1987
Cosmarium gibberulum Lütekemüller
Cosmarium giganteum (Y. Thérézien) Coesel
Cosmarium glaphyronotum West & G. S. West 1907
Cosmarium glyptodermum West & G. S. West 1895
Cosmarium goniodes West & G. S. West 1895
Cosmarium gostyniense (Raciborski) Grönblad 1921
Cosmarium granatoides (Schmidle) Schmidle
Cosmarium granatum
Cosmarium grantii Roy & Bisset 1894
Cosmarium granulatum West 1889
Cosmarium granuluscum J. Roy & Bisset
Cosmarium gravatum W. Archer
Cosmarium hammeri Reinsch 1866
Cosmarium hardyi G. S. West
Cosmarium haynaldii Schaarschmidt 1883
Cosmarium heimerlii West 1895
Cosmarium helcangulare Nordstedt 1888
Cosmarium heliosporum Maskell 1889
Cosmarium hellbergii Grönblad & Croasdale 1971
Cosmarium heterodentatum Hinode
Cosmarium hexalobum Nordstedt 1872
Cosmarium hians Borge
Cosmarium holmiense P. Lundell 1871
Cosmarium holmii
Cosmarium homalodermum Nordstedt 1875
Cosmarium hookeri J. Schaarschmidt
Cosmarium horizontale (Schmidle) Kouwets 1997
Cosmarium hornavanense Gutwinski 1909
Cosmarium hostensiense Stastny & Kouwets 2012
Cosmarium humile
Cosmarium hunanicum Jao
Cosmarium hunyadyanum Schaarschmidt 1882
Cosmarium hypochondrum Scott & Grönblad
Cosmarium impressulum
Cosmarium inacrassatoplicatum Hinode
Cosmarium incavatum W. B. Turner 1893
Cosmarium incertum Schmidle 1895
Cosmarium incisum Raciborski
Cosmarium inclusum Borge
Cosmarium incognitum Playfair
Cosmarium inconspicuum West & G. S. West 1896
Cosmarium incurvum Lütkemüller ex Grönblad 1942
Cosmarium indentatum Grönblad 1920
Cosmarium infirmum Grönblad 1926
Cosmarium inflatum Wolle 1885
Cosmarium inornatum W. Joshua
Cosmarium insamii Insam & Krieger 1936
Cosmarium insigne W. B. Turner 1893
Cosmarium intermedium Delponte 1878
Cosmarium isthmium
Cosmarium isthmochondrum Nordstedt 1873
Cosmarium itatiayae Willi Krieger 1950
Cosmarium jaoi Kouwets 1998
Cosmarium javanicum Nordstedt 1880
Cosmarium jemtlandicum Grönblad
Cosmarium jenisejense Boldt 1885
Cosmarium joadjense M. Dingley
Cosmarium johorense Bernard
Cosmarium jugatum Coesel 2007
Cosmarium jundzillii Raciborski
Cosmarium kangofurinense Woodhead & Tweed 1958
Cosmarium kanitzii Schaarschmidt 1883
Cosmarium kazanowskii Woloszynska
Cosmarium kirchneri Børgesen 1889
Cosmarium kitchelii Wolle 1882
Cosmarium kjellmanii Wille 1879
Cosmarium kolkwitzii Willi Krieger 1950
Cosmarium kostei K. Thomasson
Cosmarium kotilainense Grönblad 1962
Cosmarium kwangsiense C. C. Jao 1949
Cosmarium laciniatum W. B. Turner
Cosmarium lacunatum G. S. West 1907
Cosmarium lacustre Brühl & Biswas
Cosmarium laeve
Cosmarium lagenarium Corda
Cosmarium lagerheimii Gutwinski 1892
Cosmarium lagoense (Nordstedt) Nordstedt 1877
Cosmarium lamyfortanum Compère 1987
Cosmarium lapeanum C. Bicudo & Ventrice
Cosmarium lapponicum Borge
Cosmarium latereprotractum Playfair
Cosmarium laticeps Grunow ex Rabenhorst 1868
Cosmarium laticollum Delponte
Cosmarium latifrons P. Lundell 1871
Cosmarium latipyramidatum Scott & Grönblad
Cosmarium laxum Hinode
Cosmarium leiodermum F. Gay 1884
Cosmarium lenzenwegeri Stastny & Kouwets 2012
Cosmarium lepidum West 1889
Cosmarium levinotabile
Cosmarium libongense W. & G. S. West
Cosmarium limai J. Sampaio 1941
Cosmarium limnophilum Schmidle 1895
Cosmarium lobatosporum W. Archer 1867
Cosmarium lobulatum Schmidle 1893
Cosmarium loefgrenii Borge
Cosmarium logiense Bissett 1884
Cosmarium loktakense Brühl & Biswas
Cosmarium longicollum Brühl & Biswas
Cosmarium longicylindricum Scott & Grönblad
Cosmarium longii Taylor
Cosmarium lortetianum Rabenhorst
Cosmarium luembaerense Schmidle
Cosmarium lunatum Wolle
Cosmarium lundellii
Cosmarium luscum Borge
Cosmarium lutetianum Kouwets 1998
Cosmarium luxuriosum (Kouwets) Coesel 1989
Cosmarium maamense D. B. Williamson & D. M. John 2009
Cosmarium macrochondrum Grönblad & Scott 1958
Cosmarium maculatum
Cosmarium magdalenense W. R. Taylor
Cosmarium magnificum Nordstedt 1887
Cosmarium maharastrense Kamat
Cosmarium malinvernianum (Raciborski) Schmidle 1894
Cosmarium malleum Krieger
Cosmarium manipurense Brühl & Biswas
Cosmarium mansangense West & G. S. West 1907
Cosmarium margaritatum (P. Lundell) J. Roy & Bisset 1886
Cosmarium margaritiferum
Cosmarium maskellii H. Croasdale 1988
Cosmarium mateyucense P. F. M. Coesel
Cosmarium maximum (Børgesen) West & G. S. West 1897
Cosmarium mayorii G. S. West 1914
Cosmarium mbabanicum D. B. Williamson
Cosmarium mbugense Lind 1967
Cosmarium medioretrusum Coesel 2007
Cosmarium medioscrobiculatum West & G. S. West
Cosmarium melanosporum
Cosmarium meneghinii
Cosmarium mentiens Schaarschmidt 1883
Cosmarium mesoleium (Raciborski) Playfair
Cosmarium messikommeri
Cosmarium microsphinctum Nordstedt 1876
Cosmarium mikron Skuja
Cosmarium mikutowiczii Skuja
Cosmarium minimum West & G. S. West 1895
Cosmarium minutissimum W. Archer 1877
Cosmarium miraculum Grönblad
Cosmarium mirificum Schmidle
Cosmarium miscellum Skuja & Messikommer
Cosmarium modestum West & G. S. West 1898
Cosmarium moerlianum Lütkemüller 1893
Cosmarium moniliferum
Cosmarium moniliforme Ralfs 1848
Cosmarium monochondrum Nordstedt 1873
Cosmarium monomazum P. Lundell 1871
Cosmarium montrealense Croasdale 1981
Cosmarium mooreanum (Archer) Lütekmuller
Cosmarium morsum West 1892
Cosmarium muelleri Schmidle 1898
Cosmarium multigranulatum Prescott & A. M. Scott
Cosmarium multiordinatum West & G. S. West
Cosmarium multituberculatum F. E. Fritsch & M. F. Rich
Cosmarium murieliae Compère 1987
Cosmarium murrayi Playfair
Cosmarium mutatum Grönblad
Cosmarium naegelianum Brébisson 1856
Cosmarium nagelianum Brébisson 1856
Cosmarium najae
Cosmarium nannos Skuja 1949
Cosmarium nanum Brühl & Biswas
Cosmarium nasutum Nordstedt 1872
Cosmarium naui Kiselev
Cosmarium naviculare Borge
Cosmarium neapolitanum F. Balsamo 1889
Cosmarium neouviellense Kouwets 1997
Cosmarium netzerianum Schmidle 1895
Cosmarium nipponicum Hirano
Cosmarium nitidulum De Notaris 1867
Cosmarium nivram M. Dingley 2004
Cosmarium nobile (W. B. Turner) Willi Krieger 1937
Cosmarium nodosum O. Andersson
Cosmarium nordstedtii Delponte 1878
Cosmarium norimbergense
Cosmarium norvegicum
Cosmarium norwegicum
Cosmarium notabile
Cosmarium notatum (Grönblad) Coesel 1989
Cosmarium notochondrum West & West 1895
Cosmarium novae-semliae Wille 1879
Cosmarium nudiceps Johnson
Cosmarium nuttallii West 1892
Cosmarium nylstromicum Claassen
Cosmarium nymannianum Grunow 1868
Cosmarium obgoletum (Hantzsch) Reinsch 1867
Cosmarium obliquum Nordstedt 1873
Cosmarium oblongum Bennett 1886
Cosmarium obsoletum
Cosmarium obtusatum
Cosmarium occidentale W. B. Turner
Cosmarium occultum Schmidle
Cosmarium ocellatum
Cosmarium ochthodes
Cosmarium odontopleurum Archer ex Roy & Bisset
Cosmarium oenpelliense A. M. Scott & Prescott
Cosmarium oligogongrus Reinsch 1875
Cosmarium oliveri Schaarschm.
Cosmarium oncosporum Nordstedt
Cosmarium ophelii Prescott & A. M. Scott
Cosmarium orbiculatum Ralfs ex Ralfs 1848
Cosmarium ordinatum (Børgesen) West & G. S. West 1896
Cosmarium ornatulum Coesel
Cosmarium ornatum
Cosmarium orthogonum Delponte 1878
Cosmarium orthopunctulatum Schmidle 1895
Cosmarium orthostichum P. Lundell 1871
Cosmarium otus Krieger 1933
Cosmarium ovale
Cosmarium ozense Hirano
Cosmarium pachydermum
Cosmarium pacificum L. N. Johnson
Cosmarium pakistanicum Islam
Cosmarium palatinum Dick 1930
Cosmarium paludicola E. A. Flint & D. B. Williamson
Cosmarium palustre W. B. Turner 1893
Cosmarium panamense Prescott
Cosmarium panduratum Delponte
Cosmarium panduriforme W. B. Turner
Cosmarium pankakoskii Grönblad
Cosmarium papilliferum Schmidle
Cosmarium pappekuilense G. S. West
Cosmarium paragranatoides Skuja 1930
Cosmarium pardalis Cohn
Cosmarium parvulum Brébisson 1856
Cosmarium paucigranulatum Borge
Cosmarium pearsoni G. S. West
Cosmarium pedinochondrum Skuja
Cosmarium pelta Corda
Cosmarium peniomorphum Scott & Prescott
Cosmarium pentachondrum Børgesen
Cosmarium perfissum G. S. West 1909
Cosmarium perforatum
Cosmarium pericymatium Nordstedt 1875
Cosmarium perigranulatum A. M. Scott & Prescott
Cosmarium permaculatum R. L. Grönblad & A. M. Scott 1958
Cosmarium perpusillum West 1892
Cosmarium petsamoense Cedercreutz 1932
Cosmarium phaseolus
Cosmarium pileolatum Brébisson ex Comère 1901
Cosmarium planogranatum Croasdale 1962
Cosmarium planum West & G. S. West 1895
Cosmarium platyisthmum Archer
Cosmarium pleurotaeniforme Förster & Eckert
Cosmarium plicatum Reinsch 1867
Cosmarium pluviale W. Archer 1861
Cosmarium pokornyanum (Grunow) West & G. S. West 1900
Cosmarium polygonatum Halász 1940
Cosmarium polygonum
Cosmarium polymorphum Nordstedt 1870
Cosmarium porrectum Nordstedt
Cosmarium porteanum W. Archer 1860
Cosmarium portianum
Cosmarium praecisum Borge 1921
Cosmarium praegrande P. Lundell 1871
Cosmarium praegrandiforme Schmidle
Cosmarium praemorsum
Cosmarium prainii West & West 1907
Cosmarium prescottii Suxena & Venkateswarlu
Cosmarium prometopidion Skuja 1976
Cosmarium prominulum
Cosmarium promontorium West & G. S. West 1894
Cosmarium propinquum G. S. West
Cosmarium protomphalum Skuja
Cosmarium protractum (Nägeli) De Bary 1858
Cosmarium protruberans P. Lundell 1871
Cosmarium protuberans P. Lundell 1871
Cosmarium prowsei Grönblad & Scott 1958
Cosmarium pseduocostatum Stastny & Kouwets 2012
Cosmarium pseudamoenum Wille 1884
Cosmarium pseudarctoides
Cosmarium pseudarctoum Nordstedt 1879
Cosmarium pseudatlantoideum West 1892
Cosmarium pseudoamoenum Wille 1884
Cosmarium pseudoarmatum A. M. Scott & Prescott
Cosmarium pseudobaronii N. Woodhead & R. D. Tweed 1958
Cosmarium pseudobiremum Boldt 1885
Cosmarium pseudobotrytis F. Gay 1884
Cosmarium pseudobroomei Wolle 1884
Cosmarium pseudocommissurale F. A. C. Kouwets 1991
Cosmarium pseudoconnatum
Cosmarium pseudoexiguum Raciborski 1885
Cosmarium pseudogranatum Nordstedt 1870
Cosmarium pseudoholmii
Cosmarium pseudoincrassatum P. Bourrelly & A. Couté
Cosmarium pseudoinsigne Prescott 1981
Cosmarium pseudomargaritiferum Reinsch
Cosmarium pseudonitidulum Nordstedt 1873
Cosmarium pseudooctangulare Gronblad 1921
Cosmarium pseudoornatum B. Eichler & Gutwinski 1894
Cosmarium pseudopachydermum Nordstedt 1887
Cosmarium pseudopericymatium Hinode 1965
Cosmarium pseudophaseolus Brühl & Biswas 1926
Cosmarium pseudoprotuberans O. Kirchner 1878
Cosmarium pseudopyramidatum P. Lundell 1871
Cosmarium pseudoquadratulum Prescott & A. M. Scott
Cosmarium pseudoregnesii West & G. S. West 1895
Cosmarium pseudoretusum F. Ducellier
Cosmarium pseudospeciosum Raciborski 1892
Cosmarium pseudosulcatum Rich 1937
Cosmarium pseudotaxichondrum Nordstedt 1877
Cosmarium pseudovariolatum Grönblad
Cosmarium pseudowembaerense Kouwets 1998
Cosmarium pulcherrimum Nordstedt 1870
Cosmarium pulvinatum West & West 1895
Cosmarium pumilio Seckt
Cosmarium punctatum Nordstedt
Cosmarium punctulatum
Cosmarium pycnochondrum Nordstedt 1873
Cosmarium pygmaeum W. Archer 1864
Cosmarium pyramidatum Brébisson ex Ralfs 1848
Cosmarium pyriforme Nordstedt
Cosmarium quadragies-cuspidatum Corda 1840
Cosmarium quadrangulare Corda
Cosmarium quadratulum
Cosmarium quadratum
Cosmarium quadridentatum West & G. S. West 1902
Cosmarium quadrifarium P. Lundell 1871
Cosmarium quadrimamillatum West & G. S. West 1903
Cosmarium quadripapillatum Scott & Grönblad
Cosmarium quadriverrucosum West & G. S. West 1907
Cosmarium quadrogranulatum West & G. S. West 1895
Cosmarium quadrum
Cosmarium quasillus P. Lundell 1871
Cosmarium quaternarium Nordstedt 1880
Cosmarium quinarium P. Lundell 1871
Cosmarium raciborskianum De Toni 1889
Cosmarium raciborskii Lagerheim 1887
Cosmarium radiosum Wolle 1884
Cosmarium raeticum Messikommer 1935
Cosmarium rarissimum D. B. Williamson
Cosmarium rectangulare
Cosmarium rectangulum Reinsch 1875
Cosmarium redimitum Borge
Cosmarium regnellii
Cosmarium regnesi Reinsch 1866
Cosmarium regnesii Reinsch 1866
Cosmarium regulare Schmidle 1894
Cosmarium reinschianum De Toni 1889
Cosmarium reinschii W. Archer 1876
Cosmarium reniforme (Ralfs) W. Archer 1874
Cosmarium repandum Nordstedt 1887
Cosmarium retusiforme
Cosmarium retusum (Perty) Rabenhorst 1868
Cosmarium richianum Compère 1987
Cosmarium rostellum West & G. S. West 1895
Cosmarium rota (Ehrenberg) Corda
Cosmarium rotundatum (F. Gay) De Toni 1889
Cosmarium rotundum Prescott & A. M. Scott
Cosmarium rupestre (Nägeli) W. Archer 1861
Cosmarium ruttneri Krieger
Cosmarium sacculiferum Hinode
Cosmarium salinum Hansgirg 1886
Cosmarium salisburyi F. E. Fritsch & M. F. Rich 1937
Cosmarium santamartense W. R. Taylor
Cosmarium saxicola Kaiser 1926
Cosmarium scabratulum West & West 1895
Cosmarium scabrum W. B. Turner
Cosmarium schirschowii Kosinskaya
Cosmarium schneideri Gutwinski
Cosmarium schuebelerii Wille
Cosmarium schweickerdtii Claassen
Cosmarium scissum Brühl & Biswas
Cosmarium scitum W. West & G. S. West 1895
Cosmarium scopulorum O. Borge 1913
Cosmarium scoticum West & G. S. West 1894
Cosmarium scrobiculatum F. E. Fritsch & M. F. Rich 1929
Cosmarium scrobiculosum Borge
Cosmarium securiforme Borge
Cosmarium seelyanum Wolle 1883
Cosmarium sejunctum Wolle
Cosmarium sendtneri Reinsch
Cosmarium sexangulare
Cosmarium sexlaterum Brühl & Biswas
Cosmarium sexnotatum Gutwinski 1892
Cosmarium sexpapillosum Thompson
Cosmarium sierra-leonense N. Woodhead & R. D. Tweed 1958
Cosmarium sikhimense W. B. Turner
Cosmarium simii Roy & Bisset 1894
Cosmarium simplicius (West & G. S. West) Grönblad 1931
Cosmarium simulum Borge
Cosmarium sinostegos
Cosmarium skujae Willi Krieger & Gerloff 1965
Cosmarium slewdrumense Roy 1890
Cosmarium smolandicum P. Lundell 1871
Cosmarium sniatyniense Gutwinski
Cosmarium solidum Nordstedt 1887
Cosmarium sparsepunctatum (Schmidle) West & G. S. West 1897
Cosmarium speciosissimum Schmidle 1895
Cosmarium speciosum P. Lundell 1871
Cosmarium sphaeroideum
Cosmarium sphagnicola
Cosmarium sphalerostichum Nordstedt 1876
Cosmarium sphyrelatum Coesel 1989
Cosmarium spinuliferum West & G. S. West
Cosmarium sportella
Cosmarium spyridion West & G. S. West 1895
Cosmarium stansfieldii Woodhead & Tweed 1958
Cosmarium staurastroides Eichler & Gutwinski 1894
Cosmarium staurochondrum Lemaire
Cosmarium stellinum Corda
Cosmarium stephensii Rich 1932
Cosmarium stigmosum (Nordstedt) Krieger 1932
Cosmarium striolatum (Nägeli) W. Archer 1861
Cosmarium strongylon Scott & Prescott
Cosmarium subadoxum Grönblad
Cosmarium subalatum West & G. S. West 1895
Cosmarium subarctoum (Lagerheim) Raciborski 1892
Cosmarium subauriculatum West & G. S. West 1895
Cosmarium subaversum Borge 1897
Cosmarium subbinale (Nordstedt) Lager.
Cosmarium subbroomei Schmidle 1893
Cosmarium subcapitulum West
Cosmarium subconstrictum Schmidle 1902
Cosmarium subcontractum West & G. S. West 1905
Cosmarium subcostatum
Cosmarium subcrenatum
Cosmarium subcrenulatum Hantzsch 1861
Cosmarium subcucumis
Cosmarium subcyclicum Maskell 1889
Cosmarium subcylindricum West 1892
Cosmarium subdanicum West 1892
Cosmarium subdeplanatum Schmidle 1898
Cosmarium subdepressum West & G. S. West
Cosmarium subdistichum Raciborski
Cosmarium subexcavatum West & G. S. West 1900
Cosmarium subgranatum
Cosmarium subhammeri Rich 1935
Cosmarium subhexapapillatum Y.-X. Wei 1984
Cosmarium subhumile Gutwinski 1890
Cosmarium subimpressulum O. Borge 1894
Cosmarium subjenisejense Grönblad 1964
Cosmarium sublatere-undatum West & G. S. West 1895
Cosmarium sublobatiforme R. L. Grönblad & A. M. Scott 1958
Cosmarium submamillatum West & G. S. West 1895
Cosmarium submamilliferum West & G. S. West 1895
Cosmarium subnudiceps West & G. S. West 1898
Cosmarium subochthodes
Cosmarium suborthostichum Raciborski
Cosmarium subpachydermum Schmidle 1893
Cosmarium subpalangula Elfving 1881
Cosmarium subphaseolus F. A. C. Kouwets
Cosmarium subprotuberans West & G. S. West 1895
Cosmarium subprotumidum
Cosmarium subpyramidatum Nordstedt
Cosmarium subquadrans West & G. S. West 1905
Cosmarium subquadratum Nordstedt 1876
Cosmarium subraciborskii Taft 1945
Cosmarium subrectangulare Gutwinski 1894
Cosmarium subreinschii Schmidle 1894
Cosmarium subreniforme Nordstedt 1875
Cosmarium subretusiforme West & G. S. West 1894
Cosmarium subspeciosum Nordstedt 1875
Cosmarium subtransiens Croasdale 1956
Cosmarium subtrinodulum West & G. S. West 1900
Cosmarium subtriordinatum West & G. S. West
Cosmarium subtumidum
Cosmarium subundulatum Wille 1880
Cosmarium subvalidum Grönblad
Cosmarium succisum
Cosmarium sumatranum Krieger 1932
Cosmarium superbum Taylor
Cosmarium supraconnatum (W. B. Turner) Biswas 1949
Cosmarium synduorhabdum Skuja
Cosmarium synthlibomenum West 1892
Cosmarium tagmasterion Scott & Prescott
Cosmarium tauricum Palamar-Mordvintseva 1981
Cosmarium taxichondriforme Eichler & Gutwinski 1894
Cosmarium taxichondrum P. Lundell 1871
Cosmarium taxillus P. F. M. Coesel & A. Delfos 1986
Cosmarium taylori N. Carter
Cosmarium teilingii Krieger & Bourrelly
Cosmarium tenellum Brébisson ex Comère
Cosmarium tenue
Cosmarium teodorescui Péterfi 1964
Cosmarium tessellatum
Cosmarium tetracentrotum Skuja 1976
Cosmarium tetrachondrum P. Lundell 1871
Cosmarium tetragonum (Nägeli) W. Archer 1861
Cosmarium tetraodon R. L. Grönblad & A. M. Scott 1958
Cosmarium tetraophthalmum
Cosmarium tholiforme Cohn
Cosmarium thomassoni Therezien
Cosmarium thwaitesii
Cosmarium tibeticum Y.-X. Wei 1984
Cosmarium tinctum
Cosmarium tiroliense Gutwinski
Cosmarium tithophoroides Willi Krieger 1932
Cosmarium tittaghurense W. B. Turner 1893
Cosmarium tjibenongense Gutwinski
Cosmarium trachydermum West & G. S. West 1895
Cosmarium trachypleurum
Cosmarium trafalgaricum Wittrock & Wittrock 1877
Cosmarium transitorium (Heimerl) Ducellier 1918
Cosmarium transvaalense F. E. Fritsch & Rich 1937
Cosmarium trapezoideum Y. Kanetsuna
Cosmarium triangulare Borge
Cosmarium trifluviense Irénée-Marie 1958
Cosmarium triglavense Pevalek
Cosmarium trilobulatum
Cosmarium trinodulum Nordstedt
Cosmarium tripapillatum West & G. S. West 1895
Cosmarium triplicatum Wolle 1883
Cosmarium trituberculatum Hinode
Cosmarium triverrucosum West & West 1907
Cosmarium trochiscum W. & G. S. West
Cosmarium tropicum Bernard
Cosmarium truncatellum (Perty) Rabenhorst 1868
Cosmarium truncatum Brébisson 1848
Cosmarium trutum Irenee-Marie
Cosmarium tuberculatum W. Archer 1862
Cosmarium tumens
Cosmarium tumidum
Cosmarium turneri J. Roy 1890
Cosmarium turnerianum Maskell 1889
Cosmarium turpinii
Cosmarium tyrolicum (Nordstedt) Willi Krieger & Gerloff 1962
Cosmarium uliginosum Playfair
Cosmarium umbilicatum Lütkemüller 1893
Cosmarium undulatum
Cosmarium ungerianum (Nägeli) De Bary 1858
Cosmarium urceum W. West & G. S. West
Cosmarium usmense Skuja
Cosmarium vallegrande C. E. Taft 1947
Cosmarium van-oyei Bourrelly 1946
Cosmarium vanoisii Baier & Martinot
Cosmarium vanum Gutwinski
Cosmarium variabile Maskell 1889
Cosmarium variolatum P. Lundell 1871
Cosmarium varsoviense Raciborski 1889
Cosmarium venustum (Brébisson) W. Archer 1861
Cosmarium verrucosum (Ehrenberg) Meneghini
Cosmarium verruculosum (Schmidle) Migula
Cosmarium vexatum
Cosmarium vicenistriatum Playfair
Cosmarium visbyense Grönblad
Cosmarium vittatum W. B. Turner
Cosmarium vogesiacum
Cosmarium waterbergense Claassen
Cosmarium wembaerense Schmidle 1898
Cosmarium wenmaniae Croasdale 1968
Cosmarium westii Bernard 1908
Cosmarium wildemanii C. Bernard
Cosmarium willeanum Raciborski
Cosmarium wittrockii P. Lundell 1871
Cosmarium woloszynskae Coesel & Meesters 2004
Cosmarium woodlawnense Playfair
Cosmarium xainzaense Y.-X. Wei 1984
Cosmarium xanthidiforme Förster & Eckert
Cosmarium zonarium West & G. S. West 1895
Cosmarium zonatum P. Lundell 1871
Cosmarium zygomorphicum Taft
Actinodontum S. Alfinito & Coesel 2013
Actinotaenium (Naegeli) Teiling 1954
Allorgeia Gauthier-Lièvre 1958
Amscottia Grönblad 1954
Arthrodesmus
Bambusina Kützing ex Kützing 1849
Bourrellyodesmus Compère 1977
Brachytheca Gontcharov & Watanabe 1999
Cosmocladium Brébisson 1856
Croasdalea Bicudo & Mercante 1993
Cruciangulum D. B. Williamson 1999
Desmidium C. Agardh ex Ralfs 1848
Didymidium P. F. Reinsch 1867
Didymoprium Kützing ex J. Ralfs 1848
Docidium Brébisson ex Ralfs 1848
Euastridium West & G. S. West 1908
Euastrum Ehrenberg ex Ralfs 1848
Groenbladia Teiling 1952
Haplotaenium Bando 1988
Heimansia Coesel 1993
Hyalotheca Ehrenberg ex Ralfs 1848
Ichthyocercus West & G. S. West 1897
Ichthyodontum A. M. Scott & G. W. Prescott 1956
Mateola R. Salisbury 1936
Micrasterias C. Agardh ex Ralfs 1848
Octacanthium (Hansgirg) Compère 1996
Onychonema G. C. Wallich 1860
Oocardium Nägeli 1849
Phycastrum Kützing ex Kützing 1849
Phymatodocis Nordstedt 1878
Pleurotaeniopsis (Lundell) Lagerheim 1887
Pleurotaenium Nägeli 1849
Prescottiella Bicudo 1976
Raphidiastrum Palamar-Mordvintseva 1976
Sphaerozosma Corda ex Ralfs 1848
Spinocosmarium Prescott & A. M. Scott 1942
Spondylosium Brébisson ex Kützing 1849
Staurastrum Meyen ex Ralfs 1848
Staurodesmus Teiling 1948
Streptonema Wallich 1860
Teilingia Bourrelly 1964
Tetmemorus Ralfs ex Ralfs 1848
Triplastrum Iyengar & Ramanathan 1942
Triploceras J. W. Bailey 1851
Vincularia K. Fuciková & J. Kastovský 2009
Xanthidium Ehrenberg ex Ralfs 1848
