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Gamophyceae: Zygnematales: Zygnemataceae

Spirogyra longata
(Vaucher) Kützing

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 longata (Vaucher) Kützing, conjugation tubes formed from male gametangial cells, (immature ?) zygospores long elliposoid, vegetative cells μm long, μm diam., a single band-form chloroplast making 3-3.5 turns in each cell, x 200, x 400, x 640, Japan, December 1998 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 Spirogyra
Spirogyra Spirogyra Spirogyra


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