Genus:
Filamentous algae without branching; a single plate-like chloroplast in each cell
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
vegetative cells 120-340 μm long,
8-12 μm diam.,
8-14 pyrenoids,
transparent middle membrane of cysts with pores 1-2 μm diam.
(Illustrations of The Japanese Fresh-water Algae, 1977).
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