Quedensley, T. Sultan , Bragg, Thomas , Veliz, Mario .
The Asteraceae of Pico Zunil, Guatemala.
FIFTY-ONE genera of 102 species of Asteraceae (Compositae) were collected from 2003-2005 on the northwestern slopes of Pico Zunil, a montane cloud forest habitat in southwestern Guatemala. Of the plants collected, two were new species records for Guatemala: Ageratina rivalis and Verbesina sousae. In addition, ten new species records were collected for the department of Quetzaltenango: Ageratina pichinchensis, A. prunnellaefolia, A. rivalis, A. saxorum, Koanophyllon coulteri, Stevia triflora, Telanthophora cobanensis, Tridax procumbens, and Verbesina sousae. Species richness of Asteraceae was evaluated from 2000-3542 meters at the peak of Pico Zunil. Of the 102 species collected, 20 were known to be endemic to the western montane departments of Guatemala and the montane regions of southernmost Chiapas, Mexico. Land use in the region of Pico Zunil is affecting cloud forest habitat, especially at elevations of 2300-2700 m where species richness was highest. Species richness ranged from a low of 14 species at 3300-3542 m to a high of 59 species at 2300-2699 m.
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1 - University of Nebraska Omaha, Department of Biology, 114 Allwine Hall, Omaha, Nebraska, 68182-0040, USA
2 - University of San Carlos of Guatemala, Biology, Edificio T-10, 2o. nivel, Ciudad Universitaria, Guatemala City, , Guatemala
Presentation Type: Oral Paper:Papers for Sections
Date: Tuesday, August 1st, 2006
Time: 10:30 AM