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Gamophyceae: Zygnematales: Zygnemataceae

 Mougeotia parvula
Hassall

Mougeotia Genus: Filamentous algae without branching; a single plate-like chloroplast in each cell (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body 30-140 μm long, 8-13 μm wide; 4-8 pyrenoids in each cell; zygotes spherical, 13-25 μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).

Mougeotia parvula Hassall ?, cell body μm long, 11 μm wide, 4 pyrenoids in each cell, x 400, x 640, Imou bog, Toyohashi city, Aichi Pref., Japan, September 11, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Mougeotia Mougeotia

Mougeotia transeaui Collins: vegetative cells 85-240 μm long, 10-14 μm diam., 4-12 pyrenoids, T-shaped cysts with yellow middle membrane (Illustrations of The Japanese Fresh-water Algae, 1977).

Mougeotia rotundagulata Jao: vegetative cells 120-340 μm long, 8-12 μm diam., 8-14 pyrenoids, transparent middle membrane of cysts with pores 1-2 μm diam. (Illustrations of The Japanese Fresh-water Algae, 1977).

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