Potamoganos

• Authority

  Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.

• Family

  Bignoniaceae

• Scientific Name

  Potamoganos

• Discussion

  19. Potamoganos Sandwith, Rec. Trav. Bot. Neerl. 34: 220. 1937. Type. Potamoganos microcalyx (G.F.W. Mey.) Sandw. This monotypic genus is related to Roentgenia and Cydista and shares with them a ''Cydista-type'" flower and cupular calyx. Unlike these genera Potamoganos has a well developed disc. It lacks glandular fields, has terete branchlets, and trifid tendrils. The corolla is magenta. The single species is known only from lowland Guayana and its fruit has never been discovered.