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Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium pseudomagnificum
Hinose

Cosmarium pseudomagnificum Species: Cell body large, 84-105 μm long, 63-74 μm wide, L/W=1.3, isthmus 25-30 μm wide; semicells pyramidal in shape with flattened apex; cellwall covered with large conical projections except the flattened apex; many circular pores present at the center of the semicells (sizes gradually declined from center to margins) (Illustrations of The Japanese Fresh-water Algae, 1977).


Cosmarium pseudomagnificum Hinode, cell body μm long, μm wide, L/W=, isthmus μm wide, x 640, Utsubo-numa (a pond), Zao mountain, Zao onsen, Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium pseudomagnificum Cosmarium pseudomagnificum Cosmarium pseudomagnificum Cosmarium pseudomagnificum
Cosmarium pseudomagnificum Cosmarium pseudomagnificum Cosmarium pseudomagnificum Cosmarium pseudomagnificum

Images of collecting locality: Utsubo-numa (a pond), Zao mountain, Zao onsen, Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii


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