Phylum: Charophyta   Family: Closteriaceae

Closterium striolatum Ehrenberg ex Ralfs 1848

One of the commonest and widespread species in acidic waters. This can range from mildly to greatly acidic such as ditches, loch-margins and moorland peaty pools. However, it can be confused with Cl. costatum

References: 
Brook, A.J. & Williamson, D.B. (2010) A Monograph on some British Desmids
West, W. & West, G.S. (1904) A Monograph of the British Desmidiaceae, Volume 1
John, D.M. & Williamson, D.B. (2009) A Practical Guide to the Desmids of the West of Ireland
Coesel, P.F.M. & Meesters, K.J. (2007) Mesotaeniaceae and Desmidiaceae of the European Lowlands