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Gamophyceae: Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)

 Micrasterias truncata
(Corda) Brébisson var. quadrata Bulnheim

Micrasterias 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. quadrata Bulnheim, cell body 117 μm long, 108 μm wide, L/W=1.1, x 640, Yacho-no-mori marsh (near road sign No. 1), Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, July 24, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Micrasterias Micrasterias

Micrasterias truncata, cell body 115 μm long, 108 μm wide, L/W=, isthmus 23 μm wide, x 640, Yacho-no-mori marsh (near road sign No. 1), Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, July 24, 2005 by Y. Tsukii
Micrasterias truncata Micrasterias truncata Micrasterias truncata Micrasterias truncata

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