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Chlorophyceae: Volvocales: Volvocaceae
Volvocida: Volvocina: Volvocidae

Pandorina colemaniae
Nozaki

Pandorina Genus: Colony spherical; 8-16 cells of similar size, close together, mutually compressed; 2-layered gelatinous envelope; cells with 2 equal-length flagella; 2 contractile vacuoles anterior; nucleus central (Illustrated Guide, 1985).
Species: Colonies spherical in shape, consisting of 16 or 8 cells; cells pear-shaped, up to 26 μm in surface diam., contiguous at the center of the colony; a single chloroplast, cup-shaped, with 4-8 pyrenoids (Photomicrographs of the freshwater algae, vol. 11, 1993).


Pandorina colemaniae, stock Sob-1, axenic culture (4YN), micron long, micron wide, a colony composed of 16 cells, cells wedge-shaped, close together, x 400, x 640, Binnuma River, Omiya city, Saitama Pref., Japan, 2000, 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
Pandorina Pandorina Pandorina Pandorina
Pandorina Pandorina
Abnormal colony
Pandorina Pandorina

After cell division, a colony containing daughter colonies, morphologically very similar to Eudorina, x 100, x 200, x 400
Pandorina Pandorina Pandorina Pandorina
x 400, x 640
Pandorina Pandorina


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