Chlorophyceae:
Chlorococcales: Oocystaceae
Ankistrodesmus densus
Korschikoff
Genus: Colonies of 4-32 cells; cell body long crescent or spindle in shape, tapered at both ends;
cells attached with each other at the center of the body, paralleled or radially arranged;
no gelatinous sheath; a chloroplast; no pyrenoids; planktonic
(Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
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Monoraphidium;
Selenastrum;
Ankistrodesmus densus Korschikoff,
cell body 45 μm long, 2.5 μm wide,
x 640, a small pond near Yamaguchi university, Yamaguchi city, Yamaguchi Pref., November 21, 2004, by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Ankistrodesmus densus Korschikoff ?,
cell body μm long, 2 μm wide,
x 640, a small pond near Yamaguchi university, Yamaguchi city, Yamaguchi Pref., November 21, 2004, by Y. Tsukii
31 μm
63 μm
94 μm; x 640
* Ankistrodesmus falcatus (Corda) Ralfs:
25-30 μm long,
2-3 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
Ankistrodesmus gracilis (Reinsch) Korshikov (Syn: Selenastrum gracile Reinsch):
A colony of 8-32 cells, cells crescent in shape,
10-15 μm long,
3-5 μm wide,
a single flattened chloroplast and a pyrenoid
(Illustrations of The Japanese Fresh-water Algae, 1977).
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