Genus: Colonies of 4, 8 or 16 cells; planktonic; body crescent in shape; tapered at both ends;
cells attached to each other at dorsal surface; a chloroplast curved plate-like, with a
pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Cell body 13-30 μm long, 3-5 μm wide (Photomicrographs of the Freshwater Algae, vol. 2, 1984). |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Selenastrum gracile,
cell body μm long, μm wide,
x 400, x 640,Japan, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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).