: Ulotrichales: Ulotrichaceae
; sexual reproduction by
Genus: Without gelatinous sheath; filaments consist of many cells;
formed at one end (Illustrations of The Japanese Fresh-water Algae, 1977).
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sp., vegetative cells
μm diam., x 400, x 640, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, March 2001 by Y. Tsukii
150 μm; x 400 :
94 μm; x 640
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