Genus: Trichome without mucous sheath; straight, long, consisting of numerous cells
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Oscillatoria sp. or Lyngbya sp. ?,
cell body μm long, 6.5 μm wide, L/W=,
x 640, Near Shinrin-koen (Musashi Kyuryo National Forest Park), Namegawa town, Saitama Pref., Japan, August 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640