Species [var. setaceum]: Cell body quickly attenuated toward both ends (cf. C. ralfsii), each extended part longer than spindle-shaped part at middle (cf. C. kuetzingii), 150-(252-528)-600 μm long, 6-(8.6-17) μm wide, L/W=30-33; cell wall transparent or slightly yellowish, finely striated (Illustrations of The Japanese Fresh-water Algae, 1977). |
Closterium setaceum Ehrenberg (or C. kuetzingii Brébisson ?),
cell body μm long, μm wide, L/W=,
x 640, No.11, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.11, Kannon-numa Forest Park (pond/marsh), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii