Chaetanthera and Oriastrum
A systematic revision of Chaetanthera Ruiz and Pav. and the reinstatement of Oriastrum Poepp. and Endl. (Asteraceae: Mutisieae)
(Sprache: Englisch)
The Mutisieae (Asteraceae) are a diverse basal lineage. A polymorphous paraphyletic group of about 50 South American species within the Mutisieae are characterized by having foliaceous outer involucral bracts and winged inner bracts. This publication...
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The Mutisieae (Asteraceae) are a diverse basal lineage. A polymorphous paraphyletic group of about 50 South American species within the Mutisieae are characterized by having foliaceous outer involucral bracts and winged inner bracts. This publication presents the results of the systematic and taxonomic study of these taxa. The research focuses on newly assessed morphological and anatomical variation of characters taken from habit, involucral bracts, and achenes, combined with palynological and genetic (nr DNA) information. The genus Chaetanthera (30 species) is extensively revised and the genus Oriastrum (18 species) is reinstated. Character variation is considered in the light of form, function and habitat. Primary (cold) and secondary (aridity) adaptations to environmental conditions and trends towards insular syndromes are discussed. The biogeography of the species is explored. Three case studies of species complexes within Chaetanthera demonstrate the occurrence of polymorphism as evidence of active speciation and hybridisation events. Species keys and detailed descriptions are provided.
Autoren-Porträt von Alison Davies
Dr Alison Davies, born in 1973 in Belize, studied Botany at Edinburgh, gained her Masters in Botanical Diversity from Reading and Birmingham Universities and received her doctorate from the LMU in Munich. She currently works freelance as a translator and editor of biological manuscripts.
Bibliographische Angaben
- Autor: Alison Davies
- 2010, 312 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: Südwestdeutscher Verlag für Hochschulschriften
- ISBN-10: 383811910X
- ISBN-13: 9783838119106
Sprache:
Englisch
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