Phylum: Charophyta Family: Desmidiacea
Staurastrum maamense W. Archer 1869
A rare species restricted to Atlantic regions. Found in the tychoplankton of mainly oligotrophic lochs and lochans.
References:
Coesel, P.F.M. & Meesters, K.J. (2013) European Flora of the Desmid Genera Staurastrum and Staurodesmus