Abstract
P. caribaea, especially P. caribaea var. hondurensis, is widely planted throughout the American, Asian, and African tropics and subtropics. It is fast growing and has very versatile wood. P. caribaea var. hondurensis is the most productive of the three varieties of P. caribaea. P. caribaea var. hondurensis grows on a wide variety of sites in the tropics and subtropics at altitudes below 800 m (Whitmore and Liegel, 1980), although it also grows well up to altitudes of 1500 m or more. Worldwide interest has been focused on rapid-growing selections and provenances of the variety hondurensis. It has been found that var. hondurensis crossed naturally with P. oocarpa, and P. oocarpa var. ochoterenai produces progeny that have better form and are faster growers than their parents (Perry, 1991). P. elliottii crossed with P. caribaea var. hondurensis has made a major contribution to the success of commercial forestry in Queensland, Australia. These successes have also stimulated interest in hybrids in other countries such as South Africa, Brazil and Fiji.