Section [ Ornatae ]:
Semicells circular, ellipsoid, reniform; cell surface granulated or spiny
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Cosmarium portianum W. Archer var. portianum,
cell body μm long, μm wide, L/W=, isthmus μm wide,
x 640, Kareki-numa marsh, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Section [ Ornatae ]:
Semicells circular, ellipsoid, reniform; cell surface granulated or spiny
(Illustrations of The Japanese Fresh-water Algae, 1977).
31 μm
