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: |
31 μm
63 μm
94 μm; x 640
Spirogyra,
cell body μm long, μm wide,
x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
