: 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. ?, cell body
μm wide, x 640, near Yanase river, Mizuko, Fujimi city, Saitama Pref., Japan, December 2003 by Y. Tsukii
300 μm; x 200 :
150 μm; x 400
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