Browsing by Subject "Uxpanapa"
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Item (Vol. 01, 1998-05) Ocotea Heribertoi (Lauraceae), a New Species of Rain Forest Canopy Tree from the Isthmus Of Tehuantepec, Mexico(1998-05) Wendt, TomOcotea heribertoi is a remarkable new species from very high precipitation rain forests of the Chimalapa-Uxpanapa region of the Isthmus of Tehuantepec in Oaxaca and Veracruz, Mexico. It sports the largest known globose fruit within this large genus, borne in an unusual cupule, while the combination of vegetative and floral features indicate that it is apparently not closely related to any described species.Item (Vol. 02, 1999-12) Sterculia Xolocotzii (Sterculiaceae), A New Species Of Rain Forest Canopy Tree From The Isthmus Of Tehuantepec, Mexico(1999-12) Wendt, Tom; Taylor, Elizabeth L.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.Item (Vol. 07, 2004-12) A New Flagelliflorous Species of Stenanona (Annonaceae) from Mexico, With a Review of the Phenomenon of Flagelliflory(2004-12) Schatz, George; Wendt, TomStenanona flagelliflora is described as a new species of small, flagelliflorous tree from deep-soil hill rain forests of the Uxpanapa-Chimalapa region of the Isthmus of Tehuantepec, in Veracruz and Oaxaca, Mexico. In flagelliflory, flowers are borne on essentially leafless modified whip-like branches that trail across the ground; this is the first report of the phenonenon for the flora of Mexico or Central America. The phenomenon of flagelliflory and its worldwide occurrence are reviewed. The Central American genus Stenanona is not closely related to other New World annonaceous genera with flagelliflorous species but rather is likely most closely related to the Old World species of Polyalthia with superficially inaperturate but internally disulculate pollen. The distribution of S. flagelliflora and of its closest relatives, as well as the existence of flagelliflory in Mexican rain forest, provide additional data supporting the persistence of rain forest lineages in Mexico throughout climatically adverse periods of the late Cenozoic. The new species is considered to be Critically Endangered (CR) under the IUCN Red List classification.Item (Vol. 07, 2004-12) A New Species of Mortoniodendron (Malvaceae Sens. Lat.) from the Rain Forests of the Isthmus of Tehuantepec, Mexico(2004-12) Dorr, Laurence J.; Wendt, TomThe taxonomic history, defining characters, and relationships of the genus Mortoniodendron are briefly sketched. Characters that define M. pentagonum, a species known from a limited area in Guatemala, are elaborated. A closely related but distinct species from Veracruz, Mexico, M. uxpanapense Dorr & T. Wendt, is described and illustrated. The new species is considered to be Critically Endangered (CR) under the IUCN red list classification.