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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 sp. Link 1820, cell body 105 μm long, 25 μm wide, a single band-form chloroplast making 5.5 turns in each cell, x 400, x 640, a wetland at Igashira park, Mooka city, Tochigi Pref., Japan, April 1, 2006 by Y. Tsukii
scale 100 μm scale 200 μm scale 300 μm; x 200 : scale 50 μm scale 100 μm scale 150 μm; x 400
Spirogyra Spirogyra Spirogyra

Images of collecting locality: a wetland at Igashira park, Mooka city, Tochigi Pref., Japan, April 1, 2006 by Y. Tsukii


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