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Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium hammeri
var. protuberans W. et G.S. West

Euastrum sublobatum Genus: Unicellular; variable in shape; a constriction at the center of the cell body; mostly longer than wide; flattened; each semicell hemispherical, spherical, ellipsoidal, rectangular, pyramidal or kidney-shaped; no apical indentation (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:


Cosmarium hammeri var. protuberans W. et G.S. West ?, cell body μm long, μm wide, L/W=, isthmus μm wide, x 640, Maruta-ike Park, Maibaru city, Fukuoka Pref., Japan, September 9, 2008 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
Cosmarium hammeri Cosmarium hammeri

Images of collecting locality: Maruta-ike Park, Maibaru city, Fukuoka Pref., Japan, September 9, 2008 by Y. Tsukii


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