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Xanthophyceae: Mischococcales: Ophiocytiaceae

 Ophiocytium arbuscula
Ophiocytium arbuscula (A. Braun) Rabenhorst (Ettl 1978)
Ophiocytium arbusculum (A. Braun) Rabenhorst 1868 (John et al. eds. 2002)
Syn: Sciadium arbuscula A. Braun, Sciadium balatonensis Lemmermann

Ophiocytium arbuscula Genus: Unicellular; planktonic; cell body elongated cylindroid, curved or twisted; both ends rounded, with spiny projections; cell wall not separated into two parts (compare to Centritractus); several chloroplasts plate-like, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Cell body with a short projection at one end; terminus of the projection slightly swelled; daughter cells attached at opposite end of their mother cell (Illustrations of Japanese fresh-water algae, 1977).

Ophiocytium arbuscula, stock Sssm-1, axenic culture with KCM and Hyponex (December 10 to December 30, 2004), cell body μm long (including stalk), μm wide, x 200, x 400, x 640, rice field, Shimo-muneoka, Shiki city, Saitama Pref., Japan, October 24, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Ophiocytium arbuscula Ophiocytium arbuscula
Cell body 230 μm long (including stalk), 7 μm wide, x 200, x 400, x 640
Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula
Cell body 20-260 μm long (including stalk), 7 μm wide, x 200, x 400, x 640
Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula
Cell body 30-130 μm long (including stalk), 6-7 μm wide, x 200, x 400, x 640
Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula
Cell body 45-110 μm long (including stalk), 6.5 μm wide, x 400, x 640
Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula Ophiocytium arbuscula

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