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 gradually tapered sharply pointed ends, 16-38 μm long, 5-8 μm wide, distances between apices 5-25 μm (Photocmicrographs of the Freshwater Algae, vol. 2, 1984). |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Selenastrum bibraianus Reinsh: Cell body 5-15 μm between two termini, 6-8 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).