Dimension: Length (70)–80–110–(120) µm, width (65)–70–105–(120) µm, L/W (0.95)–1.05–1.15–(1.2).

Occurrence: Acidophilic alga, as an accompanying species in acidic sphagnum bog pits, silting zones of moor lakes, alpine ponds and the like up to 2000 m. Also widespread in lowlands.

Left: Original graphic by Prof. Lenzenweger.
Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.

Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.