Especie nueva del género Jatropha (Euphorbiaceae) de la depresión del rio Balsas, Guerrero, México

Abstract

JATROPHA WEBSTERI, A NEW SPECIES FROM THE RIO BALSAS BASIN IN GUERRERO, MEXICO IS DESCRIBED. IT IS RELATED TO JATROPHA ANDRIEUXII MUELL. ARG., FROM WHICH IT DIFFERS IN HAVING SMALLER LEAVES, PISTILLATE SEPALS WITH ENTIRE MARGIN AND CINNAMON COLOUR COROLLA. THIS SPECIES PERHAPS BELONGS TO SECTION PLATYPHYLLAE DEHGAN ET WEBSTER ON ACCOUNT OF BISERIATE STAMENS, GAMOPETALOUES COROLA AND TRILOCULAR FRUIT BUT THE PRESENCE OF A LARGE FIMBRIATE CARUNCULA POSES A PROBLEM IN THE SECTIONAL PLACEMENT.