Genus: Unicellular; variable in shape; a constriction at the center of the cell body;
mostly longer than wide; flattened; each semicell hemispherical, spherical, ellipsoidal,
rectangular, pyramidal or kidney-shaped; no apical indentation
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species: |
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No. 3, Junichogata-suigo-koen (pond), Himi city, Toyama Pref., Japan, August 22, 2006, by Y. Tsukii
