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Chlorophyceae: Chlorococcales: Scenedesmaceae

Coelastrum morus
W. & G.S. West var. morus

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: Spherical colonies of 8, 16 or more cells within a gelatinous coat; cell body spherical 9-10 (-24) μm in diam., with 4-10 (-14) small truncate, wart-like processes; cells connected to adjacent ones by the basal stout processes (Photomicrographs of the Freshwater Algae, vol. 5, 1986).


Coelastrum morus W. & G.S. West var. morus, colony 23 μm in diam., x 640, Iruma City Museum, Iruma city, Saitama Pref., Japan, March 18, 2006, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Coelastrum morus Coelastrum morus

Images of collecting locality: Iruma City Museum, Iruma city, Saitama Pref., Japan, March 18, 2006, by Y. Tsukii


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