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

 Micrasterias pinnatifida
(Kützing) Ralfs 1848

Micrasterias pinnatifida 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: cell body 77 μm long, 73 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).

Micrasterias pinnatifida (Kützing) Ralfs, stock Skk-1, axenic culture (from September 26 to November 14, 2007) in KCM+Hyponex medium, cell body μm long, μm wide, L/W=, x 640, No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida

Micrasterias pinnatifida (Kützing) Ralfs, Skk-1, axenic culture (from December 19, 2007 to February 1, 2008), cell body μm long, μm wide, L/W=, x 640, No. xx, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Micrasterias pinnatifida Micrasterias pinnatifida Micrasterias pinnatifida

Images of collecting locality: No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 22, 2006 by Y. Tsukii

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