Phylum: Charophyta   Family: Desmidiaceae

Staurastrum inconspicuum C.F.O. Nordstedt 1873

First described and illustrated by Nordstedt (1873: 26, pl. 1: 11). Usually found as a quadriradiate cell.
Cell dimensions: L: 12-25 µm; B: 12-25 µm; Is: 8-9 µm.
Fairly common in acidic moorland pools and bogs, also with Sphagnum.

References: 
Coesel, P.F.M. & Meesters, K.J. (2013). European Flora of the Desmid Genera Staurastrum and Staurodesmus.
Nordstedt, C.F.O. (1873). Bidrag till kännedomen om sydligare Norges Desmidiéer.
West, W., West, G.S. & Carter, N. (1923). A Monograph of the British Desmidiaceae, Volume 5.