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Gamophyceae: Zygnematales: Desmidiaceae
(Chlorophyceae: Zygnematales: Gonatozygaceae or Mesotaeniaceae)

 Mesotaenium macrococcum
(Kützing) Roy et Bisset

Mesotaenium macrococcum Genus: Cell body ellipsoidal or short cylindrical; chloroplasts plate-like.
Species: Cell body cylindrical, 22-38 μm long, 11-20 μm wide, both ends rounded, a single plate-like chloroplast present, margins dented (Illustrations of The Japanese Fresh-water Algae, 1977) .

Mesotaenium macrococcum (Kützing) Roy et Bisset ?, cell body 23-42 μm long, 18 μm wide, x 640, Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, May 8, 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Mesotaenium macrococcum Mesotaenium macrococcum Mesotaenium macrococcum Mesotaenium macrococcum Mesotaenium macrococcum
Mesotaenium macrococcum Mesotaenium macrococcum Mesotaenium macrococcum

Mesotaenium macrococcum (Kützing) Roy et Bisset ?, cell body 24 μm long, 20 μm wide, x 640, Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, May 8, 2006 by Y. Tsukii
Mesotaenium Mesotaenium Mesotaenium

Images of collecting locality: Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, May 8, 2006 by Y. Tsukii

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