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Ulvophyceae: Ulotrichales: Ulotrichaceae

Geminella ellipsoidea
(Prescott) Smith

Geminella Genus: Filamentous algae without branching, no rhizoids, covered with gelatinous sheath; cell body cylindrical or ellipsoidal, cells attached side by side or separated; a single chloroplast band-form, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Filament covered with a thick gelatinous coat; 2 or 4 cells closely contacted; cell body elongated ellipsoid or ovoid, 4-6 μm long, 7-9 μm wide; chloroplasts parietal, with a single pyrenoid (Photomicrographs of the Freshwater Algae, vol.4, 1985).


Geminella ellipsoidea (Prescott) Smith var. ellipsoidea ?, cell body 6 μm long, 7 μm wide, x 640, Koyama river near railway bridge of Hachiko-sen (JR), Hiroki, Misato town, Saitama Pref., Japan, April 15, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Geminella ellipsoidea Geminella ellipsoidea Geminella ellipsoidea Geminella ellipsoidea Geminella ellipsoidea

Images of collecting locality: Koyama river near railway bridge of Hachiko-sen (JR), Hiroki, Misato town, Saitama Pref., Japan, April 15, 2006 by Y. Tsukii


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