1. Gentry, A.H. 1993. Tropical forest biodiversity and the potential for new medicinal plants, pp. 13–24 in Human Medicinal Agents from Plants. American Chemical Society (ACS Symposium Series 534), Washington, DC.
2. Levin, D.A. 1976. American Naturalist. 110: 261–284.
3. Coley, P.D. and Aide, T.M. 1991. Comparison of herbivory and plant defenses in temperate and tropical broad-leaved forests, pp. 25–49 in Plant-Animal Interactions, Price P.W., Lewinsohn, T.M., Fernandes, G.W., and Benson, W.W. (eds.). John Wiley and Sons, New York.
4. Coley, P.D. and Barone, J.A. 1996. Annu. Rev. Ecol. Syst.27: In press.
5. Balick, M.J. et al. 1996. Medicinal Resources of the Tropical Forest. Biodiversity and its Importance to Human Health. Columbia University Press, New York.