Family: Unicells; cell body spherical, ellipsoidal, or spindle-shaped; without spiny projections or stipes
Genus: Cell body spherical, with many small disc-shaped chloroplasts
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Cell body 25-50 μm wide, chloroplasts rounded, without pyrenoids
(Süßwasserflora von Mitteleuropa 3, Xanthophyceae 1, 1978).
Cell body 6-18 μm in diam. (up to 30 μm); soil algae
(Illustrations of The Japanese Fresh-water Algae, 1977).
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