Order & Family: Filamentous algae; cell division occurs near septum and adds "apical cap" (folded structure near the septum) ; cell body cylindrical, laterally straight or wavy or swell at one end of the cell body ("capitellate") in some species; chloroplasts reticulated with many pyrenoids; asexual reproduction by zoospore; sexual reproduction by fertilization by egg and sperm; monoecious or dioecious.
Genus: linear filament without branching (Illustrations of The Japanese Fresh-water Algae, 1977).

Cell body laterally swelled at one end
Oedogonium sp.1 169 x 31 μm Japan, 1998	Oedogonium sp.1' 113 x 31 μm Japan, 1998	Oedogonium sp.1' μm Karasu riverside Fujioka Gunma, 2004	Oedogonium sp.1' 110-140 x 20-30 μm Midori-no-ike Togakushi highland Nagano, 2005
Oedogonium sp. 90-105 x 30 μm Lake Kizaki Omachi Nagano, 2005

Similar Genus ->> Oedocladium

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