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

 Cylindrocystis crassa
De Bary

Cylindrocystis Genus: Two chloroplasts with axis and laminae structure; axis short, laminae also short making the chloroplasts star-shaped
Species: cell body ellipsoidal, 28-60 μm long, 17-31 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar genus -->> Zygnema; Penium; Mesotaenium;

Cylindrocystis crassa De Bary ?, cell body μm long, μm wide, L/W=, x 640, No.3, Ayamedaira, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cylindrocystis brebissonii Cylindrocystis brebissonii

Images of collecting locality: No.3, Ayamedaira, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii

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