DIVERSITY AND DISTRIBUTION OF THE Persea Mill. GENUS, IN MÉXICO

Abstract

The possible distribution of the genus Persea Mill in México is unknown, although species of this genus have been reported in 28 of the 32 states of México, and because of the climate where they develop, they can be found in various areas of the country where their presence has not been reported. This study had the objective of establishing the possible distribution of the genus Persea Mill in México, from an analysis of geographic information (SIG), as well as identifying possible ecoclimate zones where the species of the genus are present. Nineteen climate parameters were evaluated and the known distribution of the species was obtained from herbarium records and accessions. The climate distribution groups were three: group I develops in the climates warm humid, semi-warm humid, temperate humid and semi-cold
((A)C to (Cb)); group II in the climates semi-warm semi-humid, warm sub-humid, temperate sub-humid and semi-arid (A) C to (Bs)); and group III is located in the climates semi-warm humid, warm humid and temperate humid (Ac to C(m)). The greatest distribution of the Persea genus in México is in the zones of Sierra Madre Oriental, Sierra Madre del Sur, Eje Neo Volcánico, Gulf coastal plain, mountains of Chiapas and Guatemala and Yucatán Peninsula.