Pourouma tomentosa subsp. essequiboensis (Standl.) C.C. Berg & van Heusden in Proc. Kon. Ned. Akad. Wetensch. 91: 109. 1988 sec. B.J.H. ter Welle & al. 1992
- ≡Pourouma essequiboensis Standl. in Lloydia 2: 175. 1939
- Holotype: Guyana, Essequibo River, Onoro Creek, A.C. Smith 2731
