Monographs Details: Potamoganos microcalyx (G.Mey.) Sandwith
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.
Family:Bignoniaceae
Discussion:1. Potamoganos microcalyx (G.F.W. Meyer) Sandwith, Rec. Trav. Bot. Neerl. 34: 221. 1937. Bignonia microcalyx G.F.W. Mey., Fl. Esseq. 211. 1818. Type. Br. Guiana, ex herb. Meyer (GOET, not seen).