Family: Trichome (filamentous structure) tapered from base to tail
Genus: Heterocysts present; one trichome within a sheath; coenobium absent
(Illustrations of The Japanese Fresh-water Algae, 1977).
Homoeothrix sp. ?,
body μm long, μm wide,
x 640, Seseragi Park, Musashi-Urawa, Saitama city, Saitama Pref., Japan, August 2002 by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Homoeothrix: Heterocysts absent
(Illustrations of The Japanese Fresh-water Algae, 1977).