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Phylogenetic generic classification of parmelioid lichens (Parmeliaceae,Ascomycota) based on molecular, morphological and chemical evidence.

Author:
  • Ana Crespo
  • Frank Kauff
  • Pradeep K. Divakar
  • Ruth del Prado
  • Sergio Pérez-Ortega
  • Guillermo Amo de Paz
  • Ferencova Suzana
  • Oscar Blanco
  • Beatriz Roca-Valiente
  • Jano Núñez-Zapata
  • Paloma Cubas
  • Arturo Argüello
  • John A. Elix
  • Theodore L. Esslinger
  • David L. Hawksworth
  • Ana Millanes
  • M. Carmen Molina
  • Mats Wedin
  • Teuvo Ahti
  • Andre Aptroot
  • Eva Barreno
  • Frank Bungartz
  • Susana Calvelo
  • Mehmet Candan
  • Mariette Cole
  • Damien Ertz
  • Bernard Goffinet
  • Louise Lindblom
  • Robert Lücking
  • Francois Lutzoni
  • Jan-Eric Mattsson
  • Maria Inés Messuti
  • Jolanta Miadlikowska
  • Michele Piercey-Normore
  • Victor J. Rico
  • Harrie J. M. Sipman
  • Imke Schmitt
  • Toby Spribille
  • Arne Thell
  • Göran Thor
  • Dalip K. Upreti
  • H. Thorsten Lumbsch
Publishing year: 2010
Language: English
Pages: 1735-1753
Publication/Series: Taxon
Volume: 59
Issue: 6
Document type: Journal article
Publisher: International Association for Plant Taxonomy

Abstract english

Parmelioid lichens are a diverse and ubiquitous group of foliose lichens. Generic delimitation in parmelioid lichens

has been in a state of flux since the late 1960s with the segregation of the large, heterogeneous genus Parmelia into numerous smaller genera. Recent molecular phylogenetic studies have demonstrated that some of these new genera were monophyletic, some were not, and others, previously believed to be unrelated, fell within single monophyletic groups, indicating the need for a revision of the generic delimitations. This study aims to give an overview of current knowledge of the major clades of all parmelioid lichens. For this, we assembled a dataset of 762 specimens, including 31 of 33 currently accepted parmelioid genera (and 63 of 84 accepted genera of Parmeliaceae). We performed maximum likelihood and Bayesian analyses of combined datasets including two, three and four loci. Based on these phylogenies and the correlation of morphological and chemical characters that characterize monophyletic groups, we accept 27 genera within nine main clades. We re-circumscribe several genera and reduce Parmelaria to synonymy with Parmotrema. Emodomelanelia Divakar & A. Crespo is described as a new genus (type: E. masonii). Nipponoparmelia (Kurok.) K.H. Moon, Y. Ohmura & Kashiw. ex A. Crespo & al. is elevated to generic rank and 15 new combinations are proposed (in the genera Flavoparmelia, Parmotrema, Myelochroa, Melanelixia and Nipponoparmelia). A short discussion of the accepted genera is provided and remaining challenges and areas requiring additional taxon sampling are identified.

Keywords

  • Botany
  • lichenized fungi
  • lichens
  • large-scale phylogeny
  • Lecanorales
  • generic concept
  • combined analysis
  • Emodomelanelia
  • Nipponoparmelia
  • Parmeliaceae
  • Parmotrema
  • taxonomy

Other

Published
  • ISSN: 0040-0262
Arne Thell
E-mail: arne [dot] thell [at] biol [dot] lu [dot] se

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