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Gamophyceae: Zygnematales: Zygnemataceae

Spirogyra sp.

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. sp.7
4 beaded chl. ?
160-325 x 25 μm
Japan, 1998
Spirogyra
S. sp.7b
4 beaded chl. ?
x μm
Saitama, 1999

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Spirogyra
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