Abstract
A new proposal to establish floristic regions in the Iberian Peninsula and the Balearte Islands, based on their endemic monocots, is presented. The data matrix was built with 182 species and subspecies mapped on the UTM 10 x 10 km grid, and using the TWINSPAN programme for classification. The 2094 squares with chorological information were divided into 10 sectors with subsectors. These sectors do not cover the whole studied territory due to the lack of chorological data for some regions. Some Iberian areas belonged to a single sector, while in others a combination of sectors was a notable feature. Results are discussed taking into account previous proposals to delimit Iberian and Balearic fitogeographical areas, and the principal endemic floristic characters, which it has been possible to differentiate, from the point of view of their distribution, are emphasized.
Highlights
A new proposal to establish floristic regions in the Iberian Península and the Balearte Islands, based on their endemic monocots, is presented
Los nombres de los táxones que aparecen como indicadores en los dendrogramas obtenidos a partir del TWINSPAN se han abreviado en seis letras, correspondiendo las tres pri
En el segundo nivel de división se separan algunas especies de distribución oriental, mientras que en el tercero se marchan al lado izquierdo los táxones baleáricos, murcianoalmerienses, onubo-algarvienses y algunos del interior peninsular
Summary
El catálogo inicial de monocotiledóneas endémicas ibero-baleáricas se elaboró a partir de Flora Europaea (TUTIN & al, 1980). Esta relación de 167 especies y subespecies hubo de modificarse de acuerdo a las aportaciones corológicas y taxonómicas aparecidas en los años siguientes. Debido a que sólo muestra resultados para los cuatro primeros ejes de variación, apenas permitió discriminar los primeros grupos de cuadrículas o especies, siendo incapaz de reflejar las tendencias existentes entre el total de observaciones y variables (cf MORENO SAIZ & ai, en prensa). Los nombres de los táxones que aparecen como indicadores en los dendrogramas obtenidos a partir del TWINSPAN se han abreviado en seis letras, correspondiendo las tres pri-. Los binómenes o trinómenes completos se adjuntan en el Apéndice I
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