Phylum: Charophyta   Family: Desmidiaceae

Cosmarium anceps P. Lundell 1871

A rare species even in its preferred habitat of atmophytic substrates and ephemeral pools.

References: 
Kouwets, F.A.C. (in manuscript) European Flora of the Desmid Genus Cosmarium
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