Genus: A single trichome within a mucilaginous sheath
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Phormidium sp.,
cell body μm long, 4.5 μm wide,
x 640, a small fountain near railway station, Suwa city, Nagano Pref., Japan, May 21, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640