Leguminosas del centro del estado de Nuevo León, México

Abstract

A STUDY OF THE DIVERSITY OF LEGUMES IN THE CENTRAL PART OF THE STATE OF NUEVO LEON WAS UNDERTAKEN. SIXTY-FIVE GENERA, 168 SPECIES AND 36 INFRAESPECIFIC TAXA WERE RECORDED. THE FAMILY FABACEAE COMPRISES 41 GENERA AND 99 SPECIES, MIMOSACEAE WITH 12 AND 35 AND CAESALPINIACEAE WITH 12 AND 34, RESPECTIVELY. GENERA WITH THE HIGHEST NUMBER OF SPECIES ARE ACACIA (14), SENNA (13), DESMODIUM (11), DALEA (10), PHASEOLUS (7), MIMOSA (6), AND CROTALARIA (5). TWENTY GENERA HAVE THREE OR MORE SPECIES, ONE HAVE FIVE, AND SIX HAVE SIX OR MORE. OF THE TOTAL OF 174 TAXA, THE HERBACEOUS LEGUMES ARE THE MOST ABUNDANT IN THE ZONE, REPRESENTING 39.6% (69 SPECIES). SHRUBBY LEGUMES CONSTITUTE 36.2% (63 SPECIES), VINES 17.8% (31 SPECIES) AND TREE LEGUMES COMPRISE 6.32% (11 SPECIES). THE HIGHEST NUMBER OF TAXA WAS RECORDED ON OAK FOREST(85), TAMAULIPAN THORNSCRUB (83), AND OAK-PINE FOREST (79). THE LOWEST DIVERSITY OF SPECIES IS FOUND IN XEROPHYLLOUS SCRUB (36).