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Cosmarium contractum </em>var.<em> subglobosum Desmid Species Outer Hebrides

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Phylum: Charophyta   Family: Desmidiaceae

Cosmarium contractum var. subglobosum Kurt Förster 1965

First described by Förster (1965, p. 134, pl. 3: 13, & pl. 10: 20), it was later moved by Scharf (1981, p. 42) to Cosmarium moniliforme var. subglobosum, where most recent records will be found. However, this association with moniliforme is not shared by Kouwets (in manuscript, p.158). It would seem a genuinely rare taxon found in oligotrophic waters in the benthic layer.

Förster, K. (1965) Beitrag zur Desmidieen-Flora der Torne-Lappmark in Schwedisch-Lappland.
Kouwets, F.A.C. (in manuscript) European Flora of the Desmid Genus Cosmarium.
Scharf, W. (1981) Zieralgen aus dem arktischen Norwegen.