portrait

Description:

Staurastrum bicorne HAUPTFL.

 The cells including their protrusions are appr. 1.3 times wider than long. The cell halves are bell-shaped and have a little swelling on the base. The cell arms are straight or small inward curved with one pair of pricks each at the ends. Along the cell ends the cell wall is covered with a row of warts with multiple apices.

  Dimension: Length 60 – 70 µm, width 10 – 100 µm

 Ecology: Sporadic in the Alps in medium acidic zones of moorlands and mountain lakes.

 Occurrence: Ubiquitous, mainly in colder climes (among others in Alaska, the Arctic, Newfoundland).