Species: Cell body large, slightly curved, gradually tapered toward ends, both ends broadly truncated with rounded
corners, 250-(430-736) μm long, 30-(42-48)-58 μm wide,
L/W=10-11; cell wall dotted, yellowish in color, especially at both ends; 5-7 pyrenoids in each semicell
(Illustrations of The Japanese Fresh-water Algae, 1977).
Closterium baillyanum Brébisson var. baillyanum,
cell body 444 μm long, 54 μm wide, L/W=8.2,
x 200, x 400, x 640, No.1, Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, June 4, 2007 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.1, Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, June 4, 2007 by Y. Tsukii