DISTRIBUTION AND ECO-CLIMATIC CHARACTERIZATION FOR GENUS <em>Crataegus</em> L. (Rosaceae, SUBFAM. Maloideae) IN MEXICO

The genus Crataegus L. in Mexico is constituted by 13 species for the centre and north, and probably two for the south, out of these 9 to 10 species are endemic. The possible distribution of this genus in Mexico is unknown, but species of this genus have been reported in 20 of the 32 states of Mexico; however, species of this genus can be found in other entities of the country because of the weather where they grow. The present research has as an objective the establishment of the possible distribution of the genus Crataegus in Mexico by an analysis of Geographic Information System (GIS), and the identification of possible eco-climatic zones where species of the genus Crataegus are. The major distribution probability of the genus Crataegus in Mexico is in the mountainous zones of the Sierra Madre Oriental, Sierra Madre Occidental and the Sierra Madre del Sur, also in the Neo-Volcanic Axis. The groups of climatic distribution are three: the group 1 presents template climate (Neo-Volcanic Axis), the group 2 semi-desert to desert (North and Northeast of the country) and the group 3 subtropical climate (Mountains zones to South Pacific and Gulf of Mexico).

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Electronic ISSN: 2007-4034
Print ISSN: 1027-152X

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