image_list image_listE

Chlorophyceae: Chlorococcales: Oocystaceae

 Ankistrodesmus sp.

Ankistrodesmus 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:
Similar Genus ->> Monoraphidium; Selenastrum;

Ankistrodesmus sp., similar to A. falcatus but very short, cell body 30 μm long, 2 μm wide, x 640, Nasu, Tochigi Pref., Japan, 2001 collected by H. Shiomizu, photo by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Ankistrodesmus Ankistrodesmus Ankistrodesmus

* 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).

Please click on images for viewing enlarged.
Copyright Protist Information Server