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Chlorophyceae: Chlorococcales: Hydrodictyaceae

 Sorastrum americanum
(Bohlin) Schmidle var. americanum

Sorastrum Genus: (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cell body wedege-shaped, heart-shaped or pyramidal, with a stalk gradually merging with cells (The Freshwater Algal Flora of the British Isles, 2002).

Sorastrum americanum (Bohlin) Schmidle var. americanum, cell body 14 μm long, 12 μm wide (including spines), x 640, Aquatic botanical garden, Sawara city, Chiba Pref., Japan, October 11, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Sorastrum americanum Sorastrum americanum Sorastrum americanum Sorastrum americanum Sorastrum americanum Sorastrum americanum Sorastrum americanum

Sorastrum americanum (Bohlin) Schmidle var. americanum, cell body μm long, μm wide, x 640, Aquatic botanical garden, Sawara city, Chiba Pref., Japan, October 11, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Sorastrum

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