PLANTAS VASCULARES ENDÉMICAS DE LA CUENCA DEL RÍO BALSAS, MÉXICO

Abstract

The 337 species of vascular plants
considered endemic from the Balsas river
basin are listed. Basing on the number of
taxa, the best represented families are:
Compositae 48, Leguminosae 30, Cactaceae
21, Burseraceae and Crassulaceae 17.
Among the monocotyledons Orchidaceae
24, Bromeliaceae and Liliaceae 16. From
pteridoflora only 14 species were registred
as endemics. The best represented state is
Guerrero (82 spp exclusive), the state that
less species registers is Jalisco (7 spp) and
Tlaxcala none. Most of the species were
located in tropical deciduous forest and in
the xerophytic scrub.