The biological diversity of our world is great, and we have only begin to investigate her potential. This diversity is proving to be extremely valuable in its natural state than when it is used for pasture or timber (Peters et al. 1989). One marketable commodity is to identify and market medicinal products. At the present time, half the drugs on the market are derived from natural sources (Reid 1993) and of these 39 plants from the tropical forests 47 resulted in marketed drugs (Farmsworth 1988). Clearly, botanical bioactive moecules can continue to be derived from the tropics.