 
 
Gamophyceae: 
Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)
Micrasterias truncata
(Corda) Brébisson var. truncata
|  Genus: 
Cell body flat, large, variable in shape, longer than wide; strong constriction at center; 
each semicell with several notches; cell wall with many short spines 
(Illustrations of The Japanese Fresh-water Algae, 1977). Species:
 | 
Micrasterias truncata (Corda) Brébisson var. truncata, 
cell body 117 μm long, 100 μm wide, L/W=1.2, isthmus 22 μm wide, 
x 640, Hyoutan-ike (gourd pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 17, 2007 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
Images of collecting locality: 
Hyoutan-ike (gourd pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 17, 2007 by Y. Tsukii
 
 
 
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