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NZ Plants

Ricciocarpus natans

Family: Ricciaceae

Ricciocarpus natans is a small floating liverwort. The heart shaped thallus is about 8 x 10 mm, with a median grove that branches dichotomously (branches are in pairs). Air cavities are present within the thallus which provide boyancy and 10 mm long scales with toothed margins are suspended from the ventral surface. 

World-wide, in fresh water.