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Gamophyceae: Zygnematales

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
Spirogyra sp.
3 band-form chl.
500 x 33 μm
Japan, 1998
Spirogyra
Spirogyra sp.
3 band-form chl.
138 x 29 μm
Saitama, 1999
Spirogyra
Spirogyra sp.
3 band-form chl.
162-244 x 35 μm
Japan, 1997
Spirogyra
Spirogyra sp.
band-form chl.
x μm
Japan, 1998
Spirogyra
Spirogyra sp.
band-form chl.
gelatinous sheath
x μm
Japan, 1998
Spirogyra
Spirogyra sp.
3 chl. 3 turns
x 30 μm
Saitama, 2001
Spirogyra
Spirogyra sp.
3 chl. 3 turns
gelatinous sheath
x 31 μm
Kurihashi
Saitama, 2001
Spirogyra
Spirogyra sp.
chl. turns
gelatinous sheath
x 34 μm
Showa Memorial p.
Tokyo, 2001
Spirogyra
Spirogyra sp.
3 chl. 3 turns
x 33 μm
Iruma City M.
Iruma
Saitama, 2006

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Spirogyra
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