Phylum: Charophyta Family: Closteriaceae
Closterium pseudolunula O. Borge 1909
A species of circumneutral waters of little known distribution in the Outer Hebrides.
References:
Borge, O. (1909) Nordamerikanische Susswasseralgen.
West, W. & West, G.S. (1904) A Monograph of the British Desmidiaceae, Volume 1.
Brook, A.J. & Williamson, D.B. (2010) A Monograph on some British Desmids.
Coesel, P.F.M. & Meesters, K.J. (2007) Mesotaeniaceae and Desmidiaceae of the European Lowlands.