portrait

Description:

 Euastrum crameri RACIB.

 The cells are appr. 1.5 times longer than wide and trapezoidal in shape. The cell sides are formed by flat depressions from two distinct waves.The vertex lobes are clearly separated, strongly broadened towards the ends. They have a central cut with a spine each on the sides. The central cut of the cell is narrow, the cellwall is covered with warts and denticles.

  Dimension: Length 60 – 65 µm, width 45 – 50 µm

 Ecology: Sporadic in medium acidic waters of fens and moorlands

 Occurrence: Rather rare, most of the reported finds are in northern areas and higher altitudes.