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Gamophyceae: Zygnematales: Zygnemataceae

 Spirogyra sp.

Spirogyra Genus: Filament without branching; cell body cylindrical; one or several chloroplasts band-shaped, spirally arranged within the cell, pyrenoids present; septum with or without folded structure (Guide book to the "Photomicrographs of the Freshwater Algae", 1998). About 300 species (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Spirogyra (S. margaritata ?), cell body μm long, 144 μm wide, 10 band-form chloroplasts, x 100, x 200, x 400, x 640, Kurihashi, Saitama Pref., Japan, July 2001 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
Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra
Cell body μm long, 148 μm wide, x 400, x 640, Kurihashi, Saitama Pref., Japan, July 2001 by Y. Tsukii
Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra Spirogyra

Spirogyra Please click on images for viewing enlarged.
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