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Chlorophyceae: Chlorococcales: Scenedesmaceae

Coelastrum astroideum
De Notaris 1867

Coelastrum Genus: Colonies spherical, with inner empty space; cells attached to each other by a protrusion of cell wall, arranged in a single layer; cell body mostly spherical with some conical or grobular bulges; chloroplasts cup-shaped with a pyrenoid; reproduction by asexual coenobium (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:


Coelastrum astroideum Ne Notaris var. astrodeum, colony 40, 50, 60 μm in diam., cell body μm long, μm wide, x 640, Aina-shinsui Park, Kawagoe city, Saitama Pref., Japan, June 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Coelastrum astroideum Coelastrum astroideum Coelastrum astroideum Coelastrum astroideum


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