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Cyanophyceae: Chroococcales: Chroococcaceae
Cyanophyceae: Chroococcales: Synechococcaceae

 Aphanothece sp.

Aphanothece Order & Family: Floating unicells or a colony embedded in a matrix; no differentiation of apical and base structures; only one family.
Genus: A colony of elliptical cells; each cell without a sheath or with a thin sheath, both ends of the cells spherical, not curved (Illustrations of The Japanese Fresh-water Algae, 1977).

Aphanothece sp., cell body 5-7 μm long, 3 μm wide, L/W=1.7-2.3, x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Aphanothece Aphanothece

Aphanothece sp., cell body 6 μm long, 3.5 μm wide, L/W=1.7, x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Aphanothece Aphanothece Aphanothece

Images of collecting locality: No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii

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