Phylum: Charophyta   Family: Desmidiaceae

Staurastrum micron W. & G.S. West 1896

First described and illustrated by West & West (1896: 159, pl. 4: 50-51). In their later flora, West, West & Carter (1923: 123) give few records for England and none for Scotland.
Overall cell dimensions: L: 15-25 µm; B: 20-29 µm; Is: 5-7 µm.
Found in loch-margins and shallow pools but rarely recorded.

References: 
Coesel, P.F.M. & Meesters, K.J. (2013). European Flora of the Desmid Genera Staurastrum and Staurodesmus.
West, W. & West, G.S.(1896). On some new and interesting freshwater algae.
West, W., West, G.S. & Carter, N. (1923). A Monograph of the British Desmidiaceae, Volume 5.