Cosmarium tetragonum

Cosmarium tetragonum
Scientific classification
Domain:	Eukaryota
Kingdom:	Plantae
Division:	Charophyta
Class:	Zygnematophyceae
Order:	Desmidiales
Family:	Desmidiaceae
Genus:	Cosmarium
Species:	C. tetragonum
Binomial name
*Cosmarium tetragonum* (Nägeli) W.Archer in Pritchard 1861
Subspecies
Cosmarium tetragonum var. elegans (Roy & Bisset) West & G.S.West 1908 (syn. C. elegans)
Synonyms
Euastrum tetragonum Nägeli

Cosmarium tetragonum var. elegans (Roy & Bisset) West & G.S.West 1908 (syn. C. elegans)

Euastrum tetragonum Nägeli

Cosmarium tetragonum is a species of green algae in the family Desmidiaceae. It is a freshwater species with a worldwide distribution.