1. The Rain Forests of Golfo Duke;Allen,1956
2. Drugs and Foods from Little-Known Plants. Notes in Harvard University Herbaria;Altschul,1973
3. New Plant Sources for Drugs and Foods from the New York Botanical Garden Herbarium;Altschul,1982
4. Notes on some medicinal and poisonous plants of Amazonian Peru;Ayala-Flores;Advances in Economic Botany,1984
5. Medicinal Plants of the West Indies;Ayensu,1981