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Chlorophyceae: Chlorococcales: Dictyosphaeriaceae

Dictyosphaerium tetrachotomum
Printz

Dictyosphaerium tetrachotomum Genus: Cells are equal in size (Illustrations of The Japanese Fresh-water Algae, 1977). Planktonic; colony within a gelatinous sheath; cell body spherical, elliptical or pear-shaped; 4 daughter cells attached to a filament dichotomously radiating from the center of the colony; a single chloroplast cup-shaped, with a pyrenoid.
Species: Cell body ovoid, 6-10 μm long, 6-8 μm wide, attached at narrower ends to radially, dichotomously branched filaments; chloroplasts single, cup-shaped, with a pyrenoid (Photomicrographs of the Freshwater Algae, vol. 2, 1984).
Similar genus -->> Planktosphaeria; Westella;


Dictyosphaerium tetrachotomum Printz ?, cell body μm long, μm wide, x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Dictyosphaerium tetrachotomum Dictyosphaerium tetrachotomum

Dictyosphaerium, cell body μm long, μm wide, x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Dictyosphaerium Dictyosphaerium

D. tetrachotomum Printz: Cell body ovoid, 6-10 μm long, 6-8 μm wide, attached at narrower ends to radially, dichotomously branched filaments; chloroplasts single, cup-shaped, with a pyrenoid (Photomicrographs of the Freshwater Algae, vol. 2, 1984).


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