Family: Unicells or colonies of non-fixed number of cells; cell body variable in shape; one or more chloroplasts variable in shape; asexual reproduction by autospore (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
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N. subsolitaria
7 x 2.5 μm
Dewa Park
Koshigaya
Saitama, 2001
