A new species of Linaria sect. Supinae from Sierra de Gredos (Sistema Central mountains, Iberian Peninsula)
DOI:
https://doi.org/10.24310/abm.v44i0.6679Abstract
Abstract
Una especie nueva de Linaria sect. Supinae en la Sierra de Gredos (Sistema Central, Península Ibérica)
Linaria vettonica Luceño, Mazuecos & P. Vargas, a new species of Linaria sect. Supinae, is described. It is a narrow endemic inhabiting the southern hills of the western and central massifs of Sierra de Gredos (Sistema Central mountains, Iberian Peninsula). The five populations found occur on siliceous, sandy soils of Quercus pyrenaica woodland clearings and slopes. L. vettonica can be distinguished from Linaria caesia by the densely glandular-pubescent inflorescence, dark purple corolla and brown seeds with tuberculate disc, and from L. aeruginea by its erect fertile stems and dark purple -never blackishcorolla.
Key words: Linaria, Sierra de Gredos, narrow endemic, taxonomy, seed micromorphology.
Resumen
Se describe Linaria vettonica Luceño, Mazuecos & P. Vargas, una nueva especie de Linaria sect. Supinae. Se trata de un endemismo restringido que se distribuye por las vertientes meridionales de los macizos occidental y central de la Sierra de Gredos (Sistema Central, Península Ibérica). Las cinco poblaciones encontradas aparecieron sobre suelos arenosos silíceos en claros y laderas de bosques de Quercus pyrenaica. L. vettonica se distingue de L. caesia por sus inflorescencias densamente glandular-pubescentes, corolas de color púrpura oscuro y semillas marrones con disco ornamentado con numerosos tubérculos. De L. aeruginea se distingue por sus tallos fértiles erectos y sus flores de color púrpura oscuro, nunca negruzcas.
Palabras clave: Linaria, sierra de Gredos, endemismo restringido, taxonomía, micromorfología de semillas.
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