1. Bignoniaceae Part I (Crescentieae and Tourrettieae);Gentry;Flora Neotropica Monograph,1980
2. The cultivated species of Tabebuia with notes on other cultivated Bignoniaceae;Gentry,1982
3. An ecotaxonomic survey of Panamanian lianas;Gentry,1984
4. Chamairo: Mussatia hyacinthina — an admixture to coca from Amazonian Peru and Bolivia;Plowman;Botanical Museum Leaflets, Harvard University,1980
5. The ethnobotany of the Paumarí Indians;Prance;Economic Botany,1977