Ulex parviflorus sensu lato (Genisteae, Leguminosae)from Central Portugal

[摘要] A group of gorses growing in Central Portugal has been traditionally identified asUlex parviflorusPourretsensu lato . The study of these plants reveáls important differences in morphological characters such as size, ramification, colour and indumentum of shoots, the type, disposition and indumentum of primary and secondary spines, and the dimensions, shape and indumentum of the calyx. Based on these morphological characteristics, as well as chromosome number, ecological requirements and geographic distribution, the plants are now ascribed to the following taxa:U. airensissp. nov.,U. australissubsp.welwitschianusstat. & comb. nov.,U. eriocladusC. Vicioso andU. jussiaeiWebb

[学科分类] 植物学

[关键词] Genisteae;Leguminosae;Ulex;morphology;chromosomes. distribution