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Chlorophyceae: Chlorococcales: Scenedesmaceae

Dicloster acuatus
Jao, Wei & Hu var. acuatus

Dicloster Genus: Planktonic; colony of 4 (or 2 or 8) cells; cell body crescent in shape, both ends drawn out as spiny projections; two cells attached each other at the outward mid-region forming "X"-shaped pairs, two pairs attached at the extreme of the cells; a single chloroplast plate-like in shape, with two pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Colonies of 4, or 2 or 8 cells, free-floating; cell body crescent in shape, both ends elongated to form a spiny projections, cells attached each other by their convex side; a single chloroplast parietal, plate-like, with large two pyrenoids; cell body 3.5-7 μm wide, 18-28 μm long without spines, spines 20-25 μm long; (Photomicrographs of the Fresh-water Algae, vol. 5, 1986).
Similar genus -->> Selenastrum;

Dicloster acuatus Jao, Wei & Hu var. acuatus, cell body 53 μm long, 6 μm wide, x 640, Mihashi Park, Chosei-chi, Saitama city (Omiya), Saitama Pref., Japan, October 2002 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
Dicloster Dicloster

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