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Cosmarium galeatum Desmid Species Outer Hebrides

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Phylum: Charophyta   Family: Desmidiaceae

Cosmarium galeatum Van Geest & Coesel 2019

First described by Van Geest & Coesel (2019, p. 125, figs. 5,15,16), as one of many crenate species, which can be confusingly similar. The quite large L/B ratio helps to separate it. It would seem to occur predominantly in atmophytic habitats such as ephemeral pools and with moss on wet rocks.

Van Geest, A. & Coesel, P. (2019). Some new and interesting desmids (Streptophyta, Desmidiales) from ephemeral puddles in the urban and industrial areas of Amsterdam (Netherlands).
Kouwets, F.A.C. (in manuscript) European Flora of the Desmid Genus Cosmarium.