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

 Cylindrocystis brebissonii
Meneghini var. brebissonii

Cylindrocystis Genus: Two chloroplasts with axis and laminae structure; axis short, laminae also short making the chloroplasts star-shaped
Species: Cell body cylindrical, large, 20-87 μm long, 11-35 μm wide (Photomicrographs of the Fresh-water Algae, 1984).
[var. brebissonii]: Cell body cylindridal with both round ends, 30-87 μm long, 14-35 μm wide, L/W=2-4; chloroplasts star-shaped, with a single pyrenoid. (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar genus -->> Zygnema; Penium; Mesotaenium;

Cylindrocystis brebissonii Meneghini var. brebisonii, cell body 35 μm long, 23 μm wide, L/W=1.5, cell body 42-45 μm long, 22 μm wide, L/W=, x 200, x 400, x 640, a marsh pond at east side of Meigetsuso (Refuge), North of Higashidaiten, Azuma mountains, Yonezawa city, Yamagata Pref., Japan, July 1, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cylindrocystis brebissonii Cylindrocystis brebissonii Cylindrocystis brebissonii Cylindrocystis brebissonii Cylindrocystis brebissonii

Images of collecting locality: a marsh pond near Meigetsuso (Refuge), North of Higashidaiten, Azuma mountains, Yonezawa city, Yamagata Pref., Japan, July 1, 2007 by Y. Tsukii

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