Phylum: Charophyta Family: Desmidiaceae
Euastrum brevisinuosum (Nordstedt) Kouwets
An acidophilous species of arctic-alpine regions, occurring in mesotrophic bogs and lochans, also on wet rocks. It would appear to be widespread but quite scarce.
Kouwets, F.A.C. (1984) The Taxonomy, Morphology and Ecology of Some Smaller Euastrum Species (Conjugatophyceae, Desmidiaceae)
West, W. & West, G.S. (1905) A Monograph of the British Desmidiaceae, Volume 2