Genera Orchidacearum: Volume 2. Orchidoideae (Part 1)

... elegantly presented ... this work is undoubtedly of elevated scientific value and is able to satisfy the specialistic needs of the fascinating world of orchids.

Autorentext
Dr. Alec M. Pridgeon, Sainsbury Orchid Fellow, Royal Botanic Gardens, Kew Dr. Phillip J. Cribb, Deputy Keeper, Herbarium, and Curator, Orchid Herbarium, Royal BotanicGardens, Kew Dr. Mark W. Chase, Head, Molecular Systematics Section, Royal Botanic Gardens, Kew Dr. Finn N. Rasmussen, Associate Professor, Botanical Institute, University of Copenhagen

Klappentext
In Volume Two of Genera Orchidacearum, three of the seven tribes found in the subfamily Orchidoideae-Orchideae, Diurideae, and Diseae are thoroughly described. Each of the 101 genera in this volume receive separate treatment with sections on nomenclature and synonymy, distribution, anatomy, palynomy, embryology, cytogenetics, ecology, phytochemistry, phylogenetics, pollination, taxonomic notes, and economic uses. For those genera found in hobbyist's collections, cultivation notes emphasizing aritificial propagation are provided.
This book features distribution maps of each genus with details on the dispersion of the flowers; superb illustrations with over 120 color photographs and line drawings; cultivational details for orchid enthusiasts and growers; contributions from over 50 international orchid experts; and diagnostic illustrations that detail each genus.

Zusammenfassung
Orchidaceae are the largest monocot family and likely the largest plant family in terms of number of species (ca. 20,000), but for a variety of reasons it remains one of the least understood: lack of a fossil record, relative scarcity of active research until recent years, size and geographical distribution of the family, and the largely tropical distribution of most, which hinders access. The early classifications and generic circumscriptions of Lindley (1830-1840), Bentham and Hooker (1883) and Schlechter (1927) relied mainly on morphological characters, especially floral features. The problem with such reliance on floral features at higher levels of classification is that floral morphology is extremely plastic in evolutionary terms, so that unrelated species may have developed similar structures in response to similar selection, particularly pollinator pressures. Such parallelisms are rife in Orchidaceae, so it is necessary to apply more objective criteria and character choices in trying to unravel the complexities of the family's history. Robert L. Dressler's (Phylogeny and Classification of the Orchid Family, Cambridge University Press, 1993) classification introduced characters from pollen, seeds, and anatomy to supplement traditional characters. The recent surge in molecular approaches, especially multigene analyses, combined with several other types of new data, had not only contradicted key elements of Dressler's concepts at higher levels but will result in the recircumscription of many genera. The aim of Genera Orchidacearum is therefore to produce a more robust and natural account of the orchids at the generic level, incorporate the wealth of new molecular data in a truly phylogenetic classification, and identify those areas and taxa that need additional work.

#	Onlineshop	Preis CHF	Versand CHF	Total CHF
1	Seller	0.00	0.00	0.00