Type : Guyana, Tumatumari (Potaro River), wet virgin forest, 5°20'N, 03-05/01/1920, A.S. Hitchcock 17348 (HT:
GH00094929; IT:
GH00112541,
NY00132453,
US00642501).
Guyana, mouth of Merumé creek, clayey hills, 05°53'N, 59°52'W, 12/1922, H.O. Lang 330 (PT: ?). Idem, H.O. Lang 339 (PT: ?).