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

 Cylindrocystis gracilis
I.Hirn
Syn. C. brebissonii var. minor W. et G.S. West

Cylindrocystis brebissonii Genus: Two chloroplasts with axis and laminae structure; axis short, laminae also short making the chloroplasts star-shaped
Species: Cell body cylindrical, distinctly broader than 10 μm; chloroplasts with longitudinal, twisting ridges (Coesel & Meesters, 2007).
Similar genus -->> Zygnema; Penium; Mesotaenium;

Cylindrocystis gracilis (formerly, C. brebissonii var. minor) ?, cell body 61 μm long, 11 μm wide, L/W=5.5, 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
Cylindrocystis Cylindrocystis
Cell body 54 μm long, 10.5 μm wide, L/W=5.1, x 640
Cylindrocystis Cylindrocystis

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

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