portrait

Description:

Micrasterias jenneri RALFS

 The cells are appr. 1.5 times longer than wide, rounded off rectangular in shape. The cells have five lobes, the lateral lobes are broadened towards the periphery and emaginated in the center, the cuts between them are closed and short. The lateral lobes aren’t spread apart, they are strongly widened peripherally and rounded with shallow emarginations in the center. The central cut is deep, closed, and not peripherally widened.

 Dimension: Length 150 - 180 µm, width 100 – 130 µm

 Ecology: Acidophilic alga, lives in sphagnum ponds together with other algae which prefer upland moor waters.

 Occurrence: Probably ubiquitous, mainly in colder zones.