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Cyanophyceae: Chroococcales: Chroococcaceae
Cyanophyceae: Chroococcales: Merismopediaceae

 Merismopedia tenuissima
Lemmermann
Included in the form-genus XIV. Synechocystis (Bergey's Manual, 2nd, 2001)

Merismopedia tenuissima Order & Family: Floating unicells or a colony embedded in a matrix; no differentiation of apical and base structures; only one family.
Genus: Colonies consiting of orderly arranged cells; diameter of cells at transverse section is the same as its length (Illustrations of The Japanese Fresh-water Algae, 1977). Colonies plate-like, cells regularly arranged in a gelatinous matrix; cells spherical or ellipsoid, hemispherical after division (Photomicrographs of the Freshwater Algae, vol. 2, 1984).
Species: Cell body pale blue-green, 1.3-2 (-3) μm in diam. (Photomicrographs of the Freshwater Algae, vol. 2, 1984).

Merismopedia tenuissima Lemmermann, cell body 3 μm long, 2 μm wide, x 640, a small pond No. 9, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Merismopedia

Images of collecting locality: No. 2, Mida-ga-hara (bog/marsh), Gassan (mountain), Tsuruoka city (formerly Haguro town) & Shonai town (formerly Tachikawa town), Yamagata Pref., Japan, August 3, 2006 by Y. Tsukii

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