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Poissonia eriantha (Leguminosae) from Cuzco, Peru: An Overlooked Species Underscores a Pattern of Narrow Endemism Common to Seasonally Dry Neotropical Vegetation

The Peruvian Poissonia eriantha is segregated from peripatric Poissonia orbicularis and reinstated as the third unifoliolate species of Poissonia and the second from the Apurimac River basin in Peru. Poissonia eriantha is distinguished phenotypically and by DNA sequences from the ITS and cpDNA trnD-... Full description

Journal Title: Systematic botany 2011, Vol.36 (1), p.59-68
Main Author: Pennington, R. Toby
Other Authors: Daza, Aniceto , Reynel, Carlos , Lavin, Matt
Format: Electronic Article Electronic Article
Language: English
Subjects:
Age
Quelle: Alma/SFX Local Collection
Publisher: American Society of Plant Toxonomists
ID: ISSN: 0363-6445
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title: Poissonia eriantha (Leguminosae) from Cuzco, Peru: An Overlooked Species Underscores a Pattern of Narrow Endemism Common to Seasonally Dry Neotropical Vegetation
format: Article
creator:
  • Pennington, R. Toby
  • Daza, Aniceto
  • Reynel, Carlos
  • Lavin, Matt
subjects:
  • Age
  • Beans
  • Biological taxonomies
  • Botany
  • Coalescence
  • Dispersal Limitation
  • Dry forests
  • Genetic aspects
  • Geographic Phylogenetic Structure
  • Identification and classification
  • Leaves
  • Legumes
  • Mimosaceae
  • Nomenclature
  • Phylogenetic Niche Conservatism
  • Phylogenetics
  • Plant genetics
  • Plants
  • Seasonally Dry Tropical Woodlands
  • Tropical forests
  • Vegetation
  • Woodlands
ispartof: Systematic botany, 2011, Vol.36 (1), p.59-68
description: The Peruvian Poissonia eriantha is segregated from peripatric Poissonia orbicularis and reinstated as the third unifoliolate species of Poissonia and the second from the Apurimac River basin in Peru. Poissonia eriantha is distinguished phenotypically and by DNA sequences from the ITS and cpDNA trnD-T region and morphology. This overlooked species is known from the type specimen and a recent collection from north of the Apurimac River in westcentral Cuzco where seasonally dry tropical forest vegetation predominates that is rich in succulent taxa (e.g. Cactaceae). Poissonia orbicularis is known from downstream along the Apurimac River and is disjunct further north along the Mantaro River, all within the same kind of seasonally dry vegetation. This seemingly small geographic distinction belies large genetic and phenotypic differences, a finding that may be most common to species groups confined to seasonally dry Neotropical forest vegetation. The case of Poissonia eriantha exemplifies the potentially high degree of niche conservatism and dispersal limitation that seasonally dry succulent-rich woodlands can impose on its constituent lineages.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0363-6445
fulltext: fulltext
issn:
  • 0363-6445
  • 1548-2324
url: Link


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titlePoissonia eriantha (Leguminosae) from Cuzco, Peru: An Overlooked Species Underscores a Pattern of Narrow Endemism Common to Seasonally Dry Neotropical Vegetation
sourceAlma/SFX Local Collection
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descriptionThe Peruvian Poissonia eriantha is segregated from peripatric Poissonia orbicularis and reinstated as the third unifoliolate species of Poissonia and the second from the Apurimac River basin in Peru. Poissonia eriantha is distinguished phenotypically and by DNA sequences from the ITS and cpDNA trnD-T region and morphology. This overlooked species is known from the type specimen and a recent collection from north of the Apurimac River in westcentral Cuzco where seasonally dry tropical forest vegetation predominates that is rich in succulent taxa (e.g. Cactaceae). Poissonia orbicularis is known from downstream along the Apurimac River and is disjunct further north along the Mantaro River, all within the same kind of seasonally dry vegetation. This seemingly small geographic distinction belies large genetic and phenotypic differences, a finding that may be most common to species groups confined to seasonally dry Neotropical forest vegetation. The case of Poissonia eriantha exemplifies the potentially high degree of niche conservatism and dispersal limitation that seasonally dry succulent-rich woodlands can impose on its constituent lineages.
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subjectAge ; Beans ; Biological taxonomies ; Botany ; Coalescence ; Dispersal Limitation ; Dry forests ; Genetic aspects ; Geographic Phylogenetic Structure ; Identification and classification ; Leaves ; Legumes ; Mimosaceae ; Nomenclature ; Phylogenetic Niche Conservatism ; Phylogenetics ; Plant genetics ; Plants ; Seasonally Dry Tropical Woodlands ; Tropical forests ; Vegetation ; Woodlands
ispartofSystematic botany, 2011, Vol.36 (1), p.59-68
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abstractThe Peruvian Poissonia eriantha is segregated from peripatric Poissonia orbicularis and reinstated as the third unifoliolate species of Poissonia and the second from the Apurimac River basin in Peru. Poissonia eriantha is distinguished phenotypically and by DNA sequences from the ITS and cpDNA trnD-T region and morphology. This overlooked species is known from the type specimen and a recent collection from north of the Apurimac River in westcentral Cuzco where seasonally dry tropical forest vegetation predominates that is rich in succulent taxa (e.g. Cactaceae). Poissonia orbicularis is known from downstream along the Apurimac River and is disjunct further north along the Mantaro River, all within the same kind of seasonally dry vegetation. This seemingly small geographic distinction belies large genetic and phenotypic differences, a finding that may be most common to species groups confined to seasonally dry Neotropical forest vegetation. The case of Poissonia eriantha exemplifies the potentially high degree of niche conservatism and dispersal limitation that seasonally dry succulent-rich woodlands can impose on its constituent lineages.
pubAmerican Society of Plant Toxonomists
doi10.1600/036364411X553135
tpages10