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Chlorophyceae: Chlorococcales

 Chlorococcum infusionum
(Schrank 1811) Meneghini 1842

Chlorococcum Genus: Subaerial algae; cell body without gelatinous coat; a single chloroplast cup-shaped with a pyrenoid (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body 10-20 (up to 40) μm in diam., zoospore 6-10 μm long, 3-5 μm wide (Süßwasserflora von Mitteleuropa 10, Chlorophyta II, 1988).

Chlorococcum infusionum (Schrank 1811) Meneghini 1842 (or Chlorococcum minimum Ettl et Gärtner 1987 ?), no flagella, a parental cell divides to produce many daughter cells (zoospores), zoospores ellipsoidal in shape (or fusiform ?), 7 μm long, 3 μm wide, x 400, x 640, Kurome River, Asaka City, Saitama Pref., Japan, Augyst 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




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