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Cyanophyceae: Chroococcales: Chroococcaceae
Cyanophyceae: Chroococcales: Synechococcaceae

 Cyanothece major
(Schröter) Komárek 1976
Syn: Synechococcus major f. crassior Lagerheim 1886

Synechococcus Order & Family: Floating unicells or a colony embedded in a matrix; no differentiation of apical and base structures; only one family.
Genus: Unicells lacking sheath; cell body ellipsoidal, cylindrical or spindle-shaped (Illustrations of The Japanese Fresh-water Algae, 1977).

Cyanothece major f. crassior Lagerheim, cell body (left) 45 μm long, 40 μm wide, x 640, Ushidome-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Synechococcus major Synechococcus major

Synechococcus major Schroeter f. crassior Lagerheim ?, cell body 50 μm long, 38 μm wide, x 640, Ushidome-ike (pond/marsh), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Synechococcus

Images of collecting locality: Ushidome-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii

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