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Chrysophyceae: Ochromonadales: Dinobryaceae

Dinobryon sertularia
Ehrenberg var. sertularia

Dinobryon Genus: Solitary or colonial; individuals with vase-like, hyaline, but sometimes, yellowish cellulose lorica, drawn out at its base; one to two lateral chromatophores (chloroplasts); usually with a stigma; in colonial forms daughter individuals remains attached to the inner margin of aperture of parent loricas and there secrete new loricas; (Kudo, 1966).
Species: Colonies planktonic, brached; lorica base-like, with wide opening; lateral margins of lorica smooth, slightly swelled; 24-45 μm long, 8-14 μm wide (Photomicrographs of the Freshwater Algae, vol. 2, 1984). Lorica 30-45 μm long, 10-15 μm wide, opening 10-15 &956;m wide (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar Genus ->> Hyalobryon; Bicoeca petiolata


Dinobryon sertularia, cell body spindle-shaped, anterior bluntly ended, 15.5 μm long, 6 μm wide, vase-like lorica 23 μm long, 9 μm wide, x 400, x 640, Green-Park, Nishi-Urawa, Saitama Pref., Japan, June 2001 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
Dinobryon cylindrica Dinobryon cylindrica


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