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Book ID: 116106
Espinoza, Tatiana Erika Boza and Michael Kessler

VA monograph of the genus Polylepis (Rosaceae). 2022. (PhytoKeys). illus. 274 p. Paper bd.

The genus Polylepis is one of the most important Andean tree genera. Polylepis forests are found from Venezuela to Chile and Argentina at elevations of up to 4800 m where they support a unique biodiversity in an otherwise treeless landscape. They also provide important
ecosystem services such as clean water, protection against erosion,firewood, fodder, and medicinal plants. However, these forests are highly fragmented and among the most endangered ecosystems in the Andes.

Taxonomically, Polylepis show a wide morphological variability among and within species, o that species classification has varied strongly over time. In the present monograph, the authors present a novel classification based on a species concept considering morphological, climatic, and biogeographic distinctness as an indicator of evolutionary independence. In total, they recognize 45 species of Polylepis, grouped in five sections, and seven species are described as new: P. frontinensis from Colombia, P. simpsoniae from Ecuador, and P. acomayensis, P. fieldsaoi, P. occidentalis, P. pilosissima , and P. sacra from Peru. Three pecies from Peru are re-instated as valid species (P. albicans, P. pallidistigma and P. serrata). Two taxa from Bolivia are elevated from subspecies to species rank (P. incanoides
and P. nana). For all species, the morphology, habitat, distribution, ecology, and conservation status are documented. The monograph further includes an identification key to the species of the genus and general introductions on taxonomic history, morphology, evolution, ecology, and conservation.

These research findings illustrate the power of an approach that integrates multiple data types, morphological, climatic niches, ploidy levels, and ecological to address fundamental questions regarding species taxonomy. It sets the stage for understanding the evolution of the
genus Polylepis and provides a sound basis for its conservation.




Author Espinoza, Tatiana Erika Boza and Michael Kessler
Article type Titel
Author Espinoza, Tatiana Erika Boza and Michael Kessler
Manufacturer Pensoft Publishers
Price excl. VAT 126,00
US price excl. VAT 138,6
EAN 9901001161060
ISBN 9901001161060
Current subscription price Nein
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