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Chlorophyceae: Chlorococcales: Chlorococcaceae

 Neospongiococcum sp.

Neospongiococcum Family: Unicells; cell body spherical or broad ellipsoidal; chloroplasts 1 to several in number, cup-shaped or plate-like, reticulated or star-shaped; with or without pyrenoids; reproduction by autospores and zoospores; many species found in soil (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:

Neospongiococcum, a stock cultured with KCM & Hyponex (photo August 11, 2004), zoospore ellipsoidal, anterior end conical, 13 μm long, 9 μm wide, chloroplast cup-shaped, located at posterior half of the cell, stigma at equator, mature cell spherical, up to 60 μm in diam., x 640, Shimo-akaiwa, Matsubushi town, Saitama Pref., Japan, March 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum Neospongiococcum
Neospongiococcum Neospongiococcum

Neospongiococcum viridis De Bary: Unicells; cell body spherical, 70-200 μm in diam.; many chloroplasts disc-shaped, located at periphery of the cell (Illustrations of the Japanese fresh-water algae, 1977).

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