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

 Micrasterias papillifera
Brébisson in Ralfs var. papillifera

Micrasterias papillifera 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 papillifera Brébisson in Ralfs var. papillifera ?, cell body μm long, μm wide, L/W=, x 400, x 640, used waterfield near Karakemi marsh (Yasaka village), Matsuzaki, Omachi city, Nagano Pref., Japan, April 24, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Micrasterias papillifera Micrasterias papillifera Micrasterias papillifera

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