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Pedro Jiménez-Mejías
Autonomous University of Madrid
CarexCyperaceaeTaxonomy (biology)BotanyBiology
51Publications
11H-index
483Citations
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Publications 84
Newest
#1Pablo Vargas (CSIC: Spanish National Research Council)H-Index: 42
#2Pedro Jiménez-Mejías (UAM: Autonomous University of Madrid)H-Index: 11
Last. Mario Fernández-Mazuecos (CSIC: Spanish National Research Council)H-Index: 14
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Abstract Geography and climate have been the main drivers of evolution in recent geological epochs. While new lineages of species have been formed in the last millions of years (speciation) and others have vanished as a result of historical climate changes (extinction), some ancient lineages appear to have persisted to the present day without net diversification. In this paper, evolution of ancient lineages is addressed by combining phylogenetic and conservation approaches to test the concept of...
1 CitationsSource
#1Pedro Jiménez-Mejías (UAM: Autonomous University of Madrid)H-Index: 11
#2J. José Alegría-Olivera (UNALM: National Agrarian University)H-Index: 1
Last. Marcial Escudero (University of Seville)H-Index: 16
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Here we present relevant records of nine species of the genus Carex (Cyperaceae) new for Peru: C. amicta , C. brehmeri , C. camptoglochin , C. enneastachya , C. livida , C. maritima , C. ownbeyi , C. ruthsatzae , and C. vallis-pulchrae . We perform the lectotypification of the names Carex camptoglochin , C. amicta and C. confertospicata .
1 CitationsSource
#1Ana OteroH-Index: 1
Last. Pablo VargasH-Index: 42
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Iberodes M. Serrano, R. Carbajal & S. Ortiz es un genero de Boraginaceas subendemico de la peninsula Iberica, con poblaciones disyuntas en Francia (region sureste y costa oeste en el Golfo de Vizcaya). Este genero comprende cinco especies de plantas anuales (una de ellas con dos subespecies), originalmente consideradas dentro del genero Omphalodes (Serrano et al., 2016). Si tenemos en cuenta la especializacion ecologica de las cinco especies, el genero se puede dividir en dos grupos: por un lado...
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Perennial, cespitose. Stems 7-40 cm length, trigonous, smooth, erect or slightly curved. Leaves 0.9-3 mm wide, usually shorter than stems, flat, light green; ligule short, slightly protruding beyond the sheath apex, truncate to rounded, scarious, absent from the cauline leaves; anteligule 1-2 mm, rounded; basal leaf sheaths unconspicuous, weak, light brown. Lowest bract 1-6 cm × 0.5-3 mm, as long as or a bit longer than inflorescence, shortly leaflike, sometimes bristle-like. Male spike 1, 7-20 ...
3 Citations
Last. Modesto LuceñoH-Index: 23
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Carex elata All. sspelatanovedad para el Algarve en la cuenca del rio Guadiana Palabras clave. Cyperaceae, Peninsula Iberica, Portugal, rios mediterraneos. Key words. Cyperaceae, Iberian Peninsula, Portugal, Mediterranean rivers.
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The megadiverse genus Carex (c. 2000 species, Cyperaceae) has a nearly cosmopolitan distribution, displaying an inverted latitudinal richness gradient with higher species diversity in cold‐temperate areas of the Northern Hemisphere. Despite great expansion in our knowledge of the phylogenetic history of the genus and many molecular studies focusing on the biogeography of particular groups during the last few decades, a global analysis of Carex biogeography and diversification is still lacking. F...
3 CitationsSource
Last. Santiago Martín BravoH-Index: 1
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Chorological notes on the flora of Cadiz coast Palabras clave. Corologia, Flora Iberica, novedades, Andalucia, Espana. Key words. Chorology, Flora Iberica, new records, Andalusia, Spain.
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Contributions to the Iberian Central Range flora Palabras clave. Gredos, Guadarrama, Quercus petraea, Rosa, Somosierra. Key words. Gredos, Guadarrama, Quercus petraea, Rosa, Somosierra.
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Last. Santiago Martín-BravoH-Index: 11
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#1Ana Otero (CSIC: Spanish National Research Council)H-Index: 1
#2Pablo Vargas (CSIC: Spanish National Research Council)H-Index: 42
Last. Andrew L. Hipp (Morton Arboretum)H-Index: 28
view all 6 authors...
Traditional classification of speciation modes has been focused on physical barriers to gene flow. Allopatry-geographic separation of populations so that gene flow between them is more or less severed-has as a consequence been viewed as the most common mechanism of speciation (allopatric speciation). By contrast, parapatry and sympatry-no physical barrier is found separating populations (adjacent or overlapped) so that speciation takes place in the face of ongoing gene flow- is more difficult to...
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