Las Magnoliophyta endemicas de la porción xerofítica de la provincia florística del Valle de Tehuacán-Cuicatlán, México

Abstract

AN EVALUATION OF THE ENDEMIC SPECIES RESTRICTED TO THE VALLE DE TEHUACAN-CUICATLAN FLORISTIC PROVINCE RECORDS 207 SPECIES OF FLOWERING PLANTS (MAGNOLIOPHYTA); THEY ARE DISTRIBUTED IN 118 GENERA AND 51 FAMILIES. A FIGURE OF 170 SPECIES, INCLUDED IN 101 GENERA AND 41 FAMILIES ARE RECORDED INSIDE THE TEHUACAN-CUICATLAN BIOSPHERE RESERVE TERRITORY, WHICH REPRESENTS 82% OF THE TOTAL ENDEMISM IN THE FLORISTIC PROVINCE. THE ENDEMICS ARE RESTRICTED TO THE XEROPHYTIC PART OF THE VALLEY, WHICH WAS DETERMINED BY CARTOGRAPHIC ANALYSIS AND THE USE OF A GEOGRAPHICAL INFORMATION SYSTEM. THE 207 SPECIES ARE DISTRIBUTED IN CA. 836 430 HECTARES, A SURFACE THAT IS CONSIDERED TO COMPRISE THE XEROPHYTIC REGION OF THE FLORISTIC PROVINCE.