Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections) Species: Cell body large, (158-162)-205 μm long, (81-84)-106 μm wide, L/W=2, isthmus (25-26)-30 μm wide; semicells rectangular in shape, each consisting of 3 lobes; lateral lobes large, elongate rectangular, slightly concaved; cell wall covered with small pores (Illustrations of The Japanese Fresh-water Algae, 1977).
|
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.1, Shimo-Kenashitai (marsh), Hakkoda mountain, Aomori city, Aomori Pref., Japan, September 13, 2006 by Y. Tsukii
