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Abstract
This study presents a comprehensive revision of the genus Sarcocornia (Chenopodiaceae) on the Iberian Peninsula based on macromorphological, micromorphological and phylogenetic data, and considering caryological, ecological and biogeographical information. Three species of Sarcocornia have been identified on the Iberian Peninsula: Sarcocornia perennis (Miller) A.J. Scott, Sarcocornia fruticosa (L.) A.J. Scott and Sarcocornia alpini (Lag.) Rivas-Martínez. Several authors have proposed that S. alpini is a specific and subspecific rank of S. perennis. Fuente, Rufo and Sánchez-Mata have recently described a new species, Sarcocornia hispanica. The micromorphological and molecular studies (sequence of the internal transcribed spacer region) indicate that there is a broad diversity within Sarcocornia in the Western Mediterranean. This article proposes a new species (Sarcocornia pruinosa) and subspecies (S. alpini subsp. carinata) in view of the new data.
Acknowledgements
We thank the directors and curators of the herbaria MA, MAF and UPS. The authors would also like to thank Prof. J. Fernández Piqueras, Prof. J.J. González Aguilera and Prof. M.A. Fernández Peralta from the Biology Department of the UAM for their useful discussions on ITS analysis, and also Prof R. Gamarra from the Biology Department of the UAM for her valuable botanical observations, and Prof. M.F. del Barrio Vega from the Latin Philology Department of the UCM for the translations into Latin of the descriptions of the new proposed taxa. This investigation was carried out within the framework of the research projects CGL2009-11059 and CTM2010-18456 supported by the Ministerio de Educación y Ciencia (MEC, Spanish Goverment) and Ministerio de Ciencia e Innovación (MICINN, Spanish Goverment).