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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 44 μm long, 27 μm wide, L/W=1.6, x 640, a small marsh near prefectural road route 342, Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, June 24, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cylindrocystis crassa Cylindrocystis crassa Cylindrocystis crassa

Images of collecting locality: a small marsh near prefectural road route 342, Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, June 24, 2007 by Y. Tsukii

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