Contribución al conocimiento del género Anthyllis L. (Fabaceae) en la Peninsula Ibérica. A. plumosa sp. nov.

In this paper a morphological, palynologicaland caryologicalstudy of three species of Anthyllis (sect. Oreanthyllis)is included. As a consecuencea newspecies A.plumosa E. Domínguez from the dolomitics sands of Sierra de Almijara (Málaga) is described.Se realiza un estudio morfológico, palinológico y cariológico de tres especies del género Anthyllis (sect. Oreanthyllis), describiéndose una nueva especie, A. plumosa E. Domínguez procedente de las arenas dolomíticas de la Sierra de Almijara (Málaga)

Revealing the last 13,500 years of environmental history from the multiproxy record of a mountain lake (Lago Enol, northern Iberian Peninsula)

This is the author's accepted manuscript. The final publication is available at Springer via http://dx.doi.org/10.1007/s10933-009-9387-7.We present the Holocene sequence from Lago Enol (43°16′N, 4°59′W, 1,070 m a.s.l.), Cantabrian Mountains, northern Spain. A multiproxy analysis provided comprehensive information about regional humidity and temperature changes. The analysis included sedimentological descriptions, physical properties, organic carbon and carbonate content, mineralogy and geochemical composition together with biological proxies including diatom and ostracod assemblages. A detailed pollen study enabled reconstruction of variations in vegetation cover, which were interpreted in the context of climate changes and human impact. Four distinct stages were recognized for the last 13,500 years: (1) a cold and dry episode that includes the Younger Dryas event (13,500–11,600 cal. year BP); (2) a humid and warmer period characterizing the onset of the Holocene (11,600–8,700 cal. year BP); (3) a tendency toward a drier climate during the middle Holocene (8,700–4,650 cal. year BP); and (4) a return to humid conditions following landscape modification by human activity (pastoral activities, deforestation) in the late Holocene (4,650–2,200 cal. year BP). Superimposed on relatively stable landscape conditions (e.g. maintenance of well established forests), the typical environmental variability of the southern European region is observed at this site.The Spanish Inter-Ministry Commission of Science and Technology (CICYT), the Spanish National Parks agency, the European Commission, the Spanish Ministry of Science, and the European Social Fund

Revealing the last 13,500 years of environmental history from the multiproxy record of a mountain lake (Lago Enol, northern Iberian Peninsula)

This is the author's accepted manuscript. The final publication is available at Springer via http://dx.doi.org/10.1007/s10933-009-9387-7.We present the Holocene sequence from Lago Enol (43°16′N, 4°59′W, 1,070 m a.s.l.), Cantabrian Mountains, northern Spain. A multiproxy analysis provided comprehensive information about regional humidity and temperature changes. The analysis included sedimentological descriptions, physical properties, organic carbon and carbonate content, mineralogy and geochemical composition together with biological proxies including diatom and ostracod assemblages. A detailed pollen study enabled reconstruction of variations in vegetation cover, which were interpreted in the context of climate changes and human impact. Four distinct stages were recognized for the last 13,500 years: (1) a cold and dry episode that includes the Younger Dryas event (13,500–11,600 cal. year BP); (2) a humid and warmer period characterizing the onset of the Holocene (11,600–8,700 cal. year BP); (3) a tendency toward a drier climate during the middle Holocene (8,700–4,650 cal. year BP); and (4) a return to humid conditions following landscape modification by human activity (pastoral activities, deforestation) in the late Holocene (4,650–2,200 cal. year BP). Superimposed on relatively stable landscape conditions (e.g. maintenance of well established forests), the typical environmental variability of the southern European region is observed at this site.The Spanish Inter-Ministry Commission of Science and Technology (CICYT), the Spanish National Parks agency, the European Commission, the Spanish Ministry of Science, and the European Social Fund

Contribución al estudio cariológico del género Nepeta l. en la Península Ibérica

En el presente trabajo, se estudian cariológicamente 14 taxones del género Nepeta en la Península Ibérica. Son nuevos, al parecer, los siguientes números cromosómios: N. nepetella subsp. cordifolia, n = 17; N, nepetalla subsp. aragonensis, n = 17; N. amethystina subsp. mallophora, n= 17, 2n = 34; N. multibrateata, n = 9, 2n= 18; N. tuberosa subsp. tuberosa. n = 9,2n = 18; N. tuberosa subsp. reticulata, n = 9, 2n = 18; N. granatensis n = 18, 2n = 36; N. Latiha, n = 18; N. coerulea, n = 9; N. cantabrica, 2n = 36; N. beltranii, 2n = 54.14 taxa of genus Nepeta from the 1berian peninsula are studied caryologically. The following numbers are reported presumably for the first time: N. nepetella subsp. cordifolia, n =17; N. nepetella subsp. aragonensis, n= 17; N. amethystina subsp. mallaphora, n = 17, 2n = 34; N. multibracteata, n = 9, 2n = 18; N. tuberosa subsp. tuberosa, n = 9, 2n = 18; N. tuberosa subsp. reticulata, n = 9, 2n = 18; N. granatensis n = 18, 2n = 36; N. latifolia, n = 18; N. coerulea, n = 9; N. cantabrica, 2n = 36; N. beltranii, 2n = 54

Revisión del género Nepeta (Labiatae) en la Península Ibérica e Islas Baleares

Se estudian taxonómicamente las especies del género Nepeta de la Península Ibérica e Islas Baleares. Los 22 tazones reconocidos, pertenecientes a 12 especies, se agrupan en cuatro secciones: Nepeta, Orthonepeta Bentham, Subinterruptae (Bentham) Ubera & Valdés, y Oxynepeta Bentham. Se incluye una clave para la determinación de las especies, y para cada taxón se indica el nombre correcto, sinonimias comprobadas, descripción, tipo, distribución y material estudiado. Como resultado de su tipificación, el nombre N. nuda auct. hisp. ha de cambiarse a N.la! (folia DC. y el de N. latifolia auct. hisp. a N. coerulea Aiton. Se describen los siguientes nuevos taxones: N. amethystina subsp. mallaphora var. anticaria Ladero & Rivas Goday ex Ubera & Valdés y N. cantabrica Ubera & Valdés. Se establecen las siguientes nuevas combinaciones: N. nepetella L. subsp. cordifolia (Willk.) Ubera & Valdés, N. nepetella L. subsp. aragonensis (Lam.) Ubera & Valdés, N. amethystina subp. mallaphora (Webb & Heldr.) Ubera & Valdés, N.amethystina subsp. mallophora var. bourgaei (Briquet) Ubera & Valdés, N. amethystina subsp. laciniata (Willk.) Ubera & Valdés.A taxonomic revision is presented for the genus Nepeta in the lberian Península and Balearic Islands. The 22 taxa recognized belonging to 12 species, are grouped in four sections: Nepeta, Orthonepeta Bentham, Subinterruptae (Bentham) Ubera & Valdés and Oxynepeta Bentham. The revision includes a key, together with descriptions, full synonymy and distribution for each species, with an indication of type material whenever posible. As a result of typification the following name changes are necessaryi N. nuda auct. hisp. to N. Latifolia DC and la! (folia auct. hisp. to N. coerulea Aiton. Two new taxa are described: N. amethystina subsp. mallophora var. anticaria Ladero & Rivas Goday ex Ubera & Valdés and N. cantabrica Ubera & Valdés, and the following new combinations are established: N. nepetella L. subsp. cordifolia (Willk.) Ubera & Valdés, N. nepetella L. subsp. aragonensis (Larn.) Ubera & Valdés, N. amethystina subsp. mallophora (Webb & Heldr.) Ubera & Valdés, N. amethystina subsp. mallophora var bourgaei Briquet) Ubera & Valdés, N. amethystina subsp. laciniata (Willk.) Ubera & Valdés

Archaeological, palynological and geological contributions to landscape reconstruction in the alluvial plain of the Guadalquivir River at San Bernardo, Sevilla (Spain)

Archaeological, palynological and geological studies carried out in the San Bernardo district (Sevilla) allowed us to reconstruct the changes that have taken place in vegetation and landscape relief over the areas studied. Evidence of diverse human activity in the area was also examined. These changes appear to have been influenced by frequent flooding in the area.Peer Reviewe