Family: Chloroplasts plate-like or ribbon-like; sexual reproduction by isogamy.
Genus:
Without gelatinous sheath; filaments consist of many cells; no rhizoid
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Similar Genus ->> Ulothrix Klebsormidium or Geminella ?,
cell body 7-10 μm long, 9 μm wide, L/W=0.8-1.1,
x 640, Futayo-no-ike (pond) near Haguro mountain, Haguro town, Yamagata Pref., Japan, July 10, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640