Phylum: Charophyta Family: Desmidiaceae
Cosmarium reniforme (Ralfs) W. Archer 1874
Generally distributed across Scotland favouring loch margins and shallow pools
References:
West, W. & West, G.S. (1908) A Monograph of the British Desmidiaceae, Volume 3
Coesel, P.F.M. & Meesters, K.J. (2007) Mesotaeniaceae and Desmidiaceae of the European Lowlands
John, D.M. & Williamson, D.B. (2009) A Practical Guide to the Desmids of the West of Ireland