Anales del Jardín Botánico de Madrid, Vol 55, No 1 (1997)

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


https://doi.org/10.3989/ajbm.1997.v55.i1.259

María Dalila Espíritu Santo
Departamento de Botánica e Engenharia Biológica, Instituto Superior de Agronomía, Universidade Técnica de Lisboa, Portugal

Paloma Cubas
Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, Spain

Mario F. Lousá
Departamento de Botánica e Engenharia Biológica, Instituto Superior de Agronomía, Universidade Técnica de Lisboa, Portugal

Cristina Pardo
Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, Spain

J. Carlos Costa
Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, Spain

Abstract


A group of gorses growing in Central Portugal has been traditionally identified as Ulex parviflorus Pourret sensu 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. airensis sp. nov., U. australis subsp. welwitschianus stat. & comb. nov., U. eriocladus C. Vicioso and U. jussiaei Webb

Keywords


Genisteae; Leguminosae; Ulex; morphology; chromosomes. distribution

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