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Cyanophyceae: Nostocales: Oscillatoriaceae

Oscillatoria geminata
Meneghini

Oscillatoria geminata Genus: A single trichome within a rigid sheath; sheath clear or yellowish; filaments planktonic or agglutinated.
Species: Trichome blue-green, twisted or straight, not attenuated toward ends, septum constricted, rows of granules absent, easily separated into single cells, cell body 2.3-16 μm long, 2.3-4 μm wide; (Illustrations of The Japanese Fresh-water Algae, 1977).


Oscillatoria geminata Meneghini ?, cell body 3-5 μm long, 3 μm wide, x 640, Hasu-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 19, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Oscillatoria Oscillatoria


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