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Reassessing the Generic Status of Petalolophus (Annonaceae): Evidence for the Evolution of a Distinct Sapromyophilous Lineage within Pseuduvaria

The genus Petalolophus (Annonaceae) consists of only one species, P. megalopus, which is characterised by the possession of elaborate perianth wings that extend abaxially from the midrib of the inner petals. Recently published molecular phylogenetic data suggest that Petalolophus is congeneric with... Full description

Journal Title: Systematic botany 2005, Vol.30 (3), p.494-502
Main Author: Su, Yvonne C. F
Other Authors: Mols, Johan B , Takeuchi, Wayne , Keßler, Paul J. A , Saunders, Richard M. K
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: American Society of Plant Taxonomists
ID: ISSN: 0363-6445
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title: Reassessing the Generic Status of Petalolophus (Annonaceae): Evidence for the Evolution of a Distinct Sapromyophilous Lineage within Pseuduvaria
format: Article
creator:
  • Su, Yvonne C. F
  • Mols, Johan B
  • Takeuchi, Wayne
  • Keßler, Paul J. A
  • Saunders, Richard M. K
subjects:
  • ARTICLES
  • Biological taxonomies
  • Carpels
  • Crystals
  • Evolution
  • Fruits
  • Genera
  • Perianths
  • Petals
  • Pollen
  • Stamens
ispartof: Systematic botany, 2005, Vol.30 (3), p.494-502
description: The genus Petalolophus (Annonaceae) consists of only one species, P. megalopus, which is characterised by the possession of elaborate perianth wings that extend abaxially from the midrib of the inner petals. Recently published molecular phylogenetic data suggest that Petalolophus is congeneric with Pseuduvaria. Morphological and anatomical characteristics of both genera are critically re-examined and shown to support this conclusion: Petalolophus shares numerous characteristics in common with Pseuduvaria (particularly species from New Guinea) and it is only the autapomorphic possession of extended perianth wings that currently distinguish Petalolophus from Pseuduvaria. Petalolophus megalopus is accordingly formally transferred to Pseuduvaria. Field observations reveal that the flowers of Pseuduvaria megalopus are visited by flies; it is likely that pollination is sapromyophilous, and that the inner petal wings attract flies by mimicking carrion.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0363-6445
fulltext: fulltext
issn:
  • 0363-6445
  • 1548-2324
url: Link


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titleReassessing the Generic Status of Petalolophus (Annonaceae): Evidence for the Evolution of a Distinct Sapromyophilous Lineage within Pseuduvaria
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creatorSu, Yvonne C. F ; Mols, Johan B ; Takeuchi, Wayne ; Keßler, Paul J. A ; Saunders, Richard M. K
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descriptionThe genus Petalolophus (Annonaceae) consists of only one species, P. megalopus, which is characterised by the possession of elaborate perianth wings that extend abaxially from the midrib of the inner petals. Recently published molecular phylogenetic data suggest that Petalolophus is congeneric with Pseuduvaria. Morphological and anatomical characteristics of both genera are critically re-examined and shown to support this conclusion: Petalolophus shares numerous characteristics in common with Pseuduvaria (particularly species from New Guinea) and it is only the autapomorphic possession of extended perianth wings that currently distinguish Petalolophus from Pseuduvaria. Petalolophus megalopus is accordingly formally transferred to Pseuduvaria. Field observations reveal that the flowers of Pseuduvaria megalopus are visited by flies; it is likely that pollination is sapromyophilous, and that the inner petal wings attract flies by mimicking carrion.
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subjectARTICLES ; Biological taxonomies ; Carpels ; Crystals ; Evolution ; Fruits ; Genera ; Perianths ; Petals ; Pollen ; Stamens
ispartofSystematic botany, 2005, Vol.30 (3), p.494-502
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descriptionThe genus Petalolophus (Annonaceae) consists of only one species, P. megalopus, which is characterised by the possession of elaborate perianth wings that extend abaxially from the midrib of the inner petals. Recently published molecular phylogenetic data suggest that Petalolophus is congeneric with Pseuduvaria. Morphological and anatomical characteristics of both genera are critically re-examined and shown to support this conclusion: Petalolophus shares numerous characteristics in common with Pseuduvaria (particularly species from New Guinea) and it is only the autapomorphic possession of extended perianth wings that currently distinguish Petalolophus from Pseuduvaria. Petalolophus megalopus is accordingly formally transferred to Pseuduvaria. Field observations reveal that the flowers of Pseuduvaria megalopus are visited by flies; it is likely that pollination is sapromyophilous, and that the inner petal wings attract flies by mimicking carrion.
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titleReassessing the Generic Status of Petalolophus (Annonaceae): Evidence for the Evolution of a Distinct Sapromyophilous Lineage within Pseuduvaria
authorSu, Yvonne C. F ; Mols, Johan B ; Takeuchi, Wayne ; Keßler, Paul J. A ; Saunders, Richard M. K
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abstractThe genus Petalolophus (Annonaceae) consists of only one species, P. megalopus, which is characterised by the possession of elaborate perianth wings that extend abaxially from the midrib of the inner petals. Recently published molecular phylogenetic data suggest that Petalolophus is congeneric with Pseuduvaria. Morphological and anatomical characteristics of both genera are critically re-examined and shown to support this conclusion: Petalolophus shares numerous characteristics in common with Pseuduvaria (particularly species from New Guinea) and it is only the autapomorphic possession of extended perianth wings that currently distinguish Petalolophus from Pseuduvaria. Petalolophus megalopus is accordingly formally transferred to Pseuduvaria. Field observations reveal that the flowers of Pseuduvaria megalopus are visited by flies; it is likely that pollination is sapromyophilous, and that the inner petal wings attract flies by mimicking carrion.
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