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 straight
Oedogonium sp. 4 14-28 x 16 μm Japan, 1998	Oedogonium sp. 4 zoospore budding Mizumoto park Tokyo, 2001	Oedogonium sp. 4 x 15-16 μm Kejo-numa Furukawa Miyagi, 2003	Oedogonium sp. 4 16 x 12 μm Nishi-nasuno Tochigi, 2001
Oedogonium sp. 4 35-45 x 10-15 μm Kejo-numa Furukawa Miyagi, 2003	Oedogonium sp. 4 27-41 x 18 μm Miyado Asaka Saitama, 2004	Oedogonium sp. 4 x 13-16 μm Kabuto-yama Nishi-no-miya Hyogo, 2004	Oedogonium sp. 4 23-38 x 16 μm Riverside green l. Sawara Chiba, 2004

Similar Genus ->> Oedocladium

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