Gamophyceae:
Zygnematales: Desmidiaceae
Euastrum gnathophorum
W. et G.S. West
Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: Cell body 47-73 μm long, 34-36 μm wide, isthmus 11-14 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Euastrum gnathophorum W. et G.S. West,
semicell 33 μm long, 37 μm wide, L/W=, isthmus ?? μm wide,
x 640, No. 7-1, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No. 7, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
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