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Gamophyceae: Desmidales: Mesotaeniaceae
(Charophyceae: Zygnematales: Mesotaeniaceae)

 Netrium interruptum
(Brébisson) Lütkemüller var. interruptum

Netrium interruptum Species [var. interruptm]: Cell body large, cylindrical, both ends conical; 4 chloroplasts present, trasverse section star-shaped, with smooth margins (lack incisions); 168-300 μm long, 34.5-63 μm wide.
[var. minor ]: Smaller than var. interrruptum, 82-154 μm long, 15-34 μm wide. (Illustrations of The Japanese Fresh-water Algae, 1977).

Netrium interruptum (Brébisson) Lütkemüller var. interruptum, cell body 205 μm long, 41 μm wide, L/W=5.0, x 400, x 640, a small pond at Kowashimizu, Suwa city, Nagano Pref., Japan, July 16, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Netrium interruptum Netrium interruptum Netrium interruptum
Cell body 158 μm long, 43 μm wide, L/W=3.7, x 400, x 640
Netrium interruptum Netrium interruptum Netrium interruptum
Cell body 152 μm long, 41 μm wide, L/W=3.7, x 400, x 640
Netrium interruptum Netrium interruptum Netrium interruptum
Cell body 173 μm long, 39 μm wide, L/W=4.4, x 400, x 640
Netrium interruptum Netrium interruptum Netrium interruptum Netrium interruptum

Images of collecting locality: a small pond at Kowashimizu, Suwa city, Nagano Pref., Japan, July 16, 2007 by Y. Tsukii

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