(Vol. 02, 1999-12) Sterculia Xolocotzii (Sterculiaceae), A New Species Of Rain Forest Canopy Tree From The Isthmus Of Tehuantepec, Mexico
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The new species Sterculia xolocotzii represents the second native New World Sterculia species with palmately compound leaves to be described, the first being S. mexicana R. Br. Sterculia xolocotzii is known only from Mexico, where it has been collected in lowland rain forests of the Uxpanapa-Chimalapa region of Veracruz and Oaxaca and once in the Los Tuxtlas area of Veracruz. It can be distinguished from S. mexicana, with which it often grows, by habit, phenology, and numerous morphological characters. The morphology and ecology of S. xolocotzii are detailed, and the distribution and typification of S. mexicana are also discussed.