Phylum: Charophyta Family: Desmidiaceae
Cosmarium ovale Ralfs ex Ralfs 1848
Found in the tychoplankton of mainly oligotrophic lochs and lochans. Widely distributed but rarely recorded.
Kouwets, F.A.C. (in manuscript) European Flora of the Desmid Genus Cosmarium
John, D.M. & Williamson, D.B. (2009) A Practical Guide to the Desmids of the West of Ireland
West, W. & West, G.S. (1908) A Monograph of the British Desmidiaceae, Volume 3