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A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species

(2018) PHYTOKEYS. 112. p.1-141
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Abstract
We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain chain. We recognise 34 species, describing five as new here: from east of the Andes, C. blachypodum Pixie & Chatrou, sp. nov. and C dolichopodum Pixie & Maas, sp. nov., endemic to Peru; C confusum Pink, sp. nov., from southern Peru and adjacent Bolivia and Brazil; and C. alticola Pixie & Chatrou, sp. nov., at higher elevations in northern Peru and Ecuador; and from west of the Andes, C osicola Pixie & Chatrou, sp. nov. endemic to Costa Rica, the most northerly distributed species of the genus. We provide an identification key, document diagnostic characters and distributions and provide illustrations and extensive lists of specimens, also presenting the latter in the form of mapping data with embedded links to images available online. Of the 34 species, 22 are regional endemics. On the basis of the extent of occurrence and area of occupancy of species estimated from the distribution data, we designate IUCN threat categries for all species. Fourteen species proved to be endangered (EN) and a further one critically endangered (CR), reflecting their rarity and narrow known distributions.
Keywords
Annonaceae, Cremastosperma, endangered species, endemic species, IUCN, Neotropics, taxonomy, tropical rainforest, TREES, GENERA, DIVERSIFICATION, DISPERSAL, DIVERSITY, EVOLUTION, GUATTERIA, HISTORY

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Chicago
Pirie, Michael D, Lars Chatrou, and Paul JM Maas. 2018. “A Taxonomic Revision of the Neotropical Genus Cremastosperma (Annonaceae), Including Five New Species.” Phytokeys 112: 1–141.
APA
Pirie, M. D., Chatrou, L., & Maas, P. J. (2018). A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species. PHYTOKEYS, 112, 1–141.
Vancouver
1.
Pirie MD, Chatrou L, Maas PJ. A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species. PHYTOKEYS. 2018;112:1–141.
MLA
Pirie, Michael D, Lars Chatrou, and Paul JM Maas. “A Taxonomic Revision of the Neotropical Genus Cremastosperma (Annonaceae), Including Five New Species.” PHYTOKEYS 112 (2018): 1–141. Print.
@article{8592091,
  abstract     = {We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain chain. We recognise 34 species, describing five as new here: from east of the Andes, C. blachypodum Pixie \& Chatrou, sp. nov. and C dolichopodum Pixie \& Maas, sp. nov., endemic to Peru; C confusum Pink, sp. nov., from southern Peru and adjacent Bolivia and Brazil; and C. alticola Pixie \& Chatrou, sp. nov., at higher elevations in northern Peru and Ecuador; and from west of the Andes, C osicola Pixie \& Chatrou, sp. nov. endemic to Costa Rica, the most northerly distributed species of the genus. We provide an identification key, document diagnostic characters and distributions and provide illustrations and extensive lists of specimens, also presenting the latter in the form of mapping data with embedded links to images available online. Of the 34 species, 22 are regional endemics. On the basis of the extent of occurrence and area of occupancy of species estimated from the distribution data, we designate IUCN threat categries for all species. Fourteen species proved to be endangered (EN) and a further one critically endangered (CR), reflecting their rarity and narrow known distributions.},
  author       = {Pirie, Michael D and Chatrou, Lars and Maas, Paul JM},
  issn         = {1314-2011},
  journal      = {PHYTOKEYS},
  language     = {eng},
  pages        = {1--141},
  title        = {A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species},
  url          = {http://dx.doi.org/10.3897/phytokeys.112.24897},
  volume       = {112},
  year         = {2018},
}

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