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Estudio Monográfico sobre los Géneros Hieracium y Pilosella en España: Con Referencias a Portugal y los Pirineos Franceses [Monographical Study on the Genera Hieracium and Pilosella in Spain: With Reference to Portugal and the French Pyrenees]

By: Gonzalo Mateo Sanz(Author), Fermín del Egido Mazuelas(Author)
422 pages, colour & b/w photos, b/w illustrations
Estudio Monográfico sobre los Géneros Hieracium y Pilosella en España: Con Referencias a Portugal y los Pirineos Franceses [Monographical Study on the Genera Hieracium and Pilosella in Spain: With Reference to Portugal and the French Pyrenees]
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  • Estudio Monográfico sobre los Géneros Hieracium y Pilosella en España: Con Referencias a Portugal y los Pirineos Franceses [Monographical Study on the Genera Hieracium and Pilosella in Spain: With Reference to Portugal and the French Pyrenees] ISBN: 9788494588082 Paperback Feb 2018 Not in stock: Usually dispatched within 2-3 weeks
    £49.99
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Price: £49.99
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About this book

Language: Spanish

This is the first monograph for Spain of two complex composite genera, Hieracium and Pilosella. It presents dichotomous keys illustrated with photos of fresh leaves, as well as detailed descriptions, ecology, chorology and observations of taxonomic and nomenclatural types.

All genera with anomalous reproduction are very complicated to reduce to typical species and any other type of infrageneric or infraspecific taxon. In Hieracium and Pilosella this difficulty reaches its maximum degree, given the enormous variability in reproductive strategies, the environments they colonize and the ability to generate intermediate strains between sections that are distant from each other.

The methodological classification the authors have adopted is that of Nägeli & Peter extended by Zahn, without giving hybrid treatment to any of the recognized taxa. Its lack of use is not a negation of the hybrid character, but the uncertainty when distinguishing two situations morphologically that are as similar as hybrids and hybrid species kept apomictically (reproducting asexually). In addition, the authors always indicate parents for all possible hybrids or consolidated species of hybrid origin.

This new work presents several substantial differences with the Flora Ibérica, for which the authors have written the synthesis of these two genera. This monograph is more detailed and has a much broader keys that allow determination of all the species considered (340 Hieracium and 72 Pilosella), while the Flora Ibérica is a generalist work where only keys are offered for the most essential, about a fifth of them.

Summary in Spanish:
Primera monografía para España de dos complejos géneros de compuestas, Hieracium y Pilosella. Presenta claves dicotómicas ilustradas con fotos de pliegos en fresco, así como descripciones detalladas, ecología, corología y observaciones de tipo taxonómico y nomenclatural.

Todos los géneros con reproducción anómala resultan muy complicados de reducir a especies típicas y cualquier otro tipo de taxon infragenérico o infraespecífico. Seguramente en Hieracium y Pilosella esta dificultad llega a su grado máximo, dada su enorme variabilidad, los tan matizados ambientes que colonizan y la facilidad para generar estirpes intermedias entre las secciones más alejadas entre sí.

La clasificación metodológica que hemos adoptado es la de Nägeli & Peter ampliada por Zahn, sin dar el tratamiento de híbrido a ninguno de los taxones reconocidos. Su falta de uso no es una negación del carácter híbrido, sino la incertidumbre a la hora de distinguir dos situaciones morfológicamente tan similares como los híbridos y las especies hibridógenas mantenidas de modo apomíctico. Además, siempre vamos a indicar parentales para todo lo que sean posibles híbridos o especies consolidadas de origen híbrido.

Esta nueva obra presenta varias diferencias sustanciales con Flora Ibérica, donde los autores han redactado la síntesis de estos dos géneros. Nuestra monografía es más detallada y lleva unas claves mucho más amplias, que permiten acceder a todas las especies consideradas (340 Hieracium y 72 Pilosella), mientras que Flora Ibérica es una obra generalista donde sólo se ofrecen claves para cerca de una quinta parte de ellas, las más esenciales.

Customer Reviews

By: Gonzalo Mateo Sanz(Author), Fermín del Egido Mazuelas(Author)
422 pages, colour & b/w photos, b/w illustrations
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