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[1]
Subspecies
	Cosmarium tetragonum var. elegans (Roy & Bisset) West & G.S.West 1908[2] (syn. C. elegans)
Synonyms
	Euastrum tetragonum Nägeli

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

References

Pritchard, A. (1861). A history of infusoria, including the Desmidiaceae and Diatomaceae, British and foreign. Fourth edition enlarged and revised by J. T. Arlidge, M.B., B.A. Lond.; W. Archer, Esq.; J. Ralfs, M.R.C.S.L. ; W. C. Williamson, Esq., F.R.S., and the author. pp. i-xii, 1- 968, 40 pls. London: Whittaker and Co., Ave Maria Lane. (description page 732)
West, W. & West, G.S. (1908). A monograph of the British Desmidiaceae. III. pp. [i]-xv, [1]-274, pl. 65-95. London: The Ray Society. (description page 20)

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