The genus Xanthoria (Fr.) Th.Fr. in North America

Louise Lindblom

Research output: ThesisDoctoral Thesis (monograph)


The lichenized ascomycete genus Xanthoria (Fr.) Th.Fr. (Teloschistaceae) in continental United States and Canada is revised. The following 15 species are recognized: Xanthoria borealis, X. candelaria, X. concinna, X. elegans, X. fallax, X. fulva, X. hasseana, X. mendozae, X. montana, X. oregana, X. parietina, X. polycarpa, X. sorediata, X. tenax, and X. ulophyllodes. The morphology, anatomy, secondary chemistry, ecology, and distribution of these species is discussed. A key for the identification of the species is presented together with distribution maps and illustrations of all species. Two taxa are described as new: Xanthoria montana and X. tenax. In addition to the newly described species, X. concinna and X. mendozae are reported for the first time from the study area. A number of taxa are reduced into synonymy and all names treated are typified.
Original languageEnglish
Awarding Institution
  • Department of Biology
  • [unknown], [unknown], Supervisor, External person
Award date1997 Dec 12
ISBN (Print)91-628-2777-4
Publication statusPublished - 1997

Bibliographical note

Defence details

Date: 1997-12-12
Time: 10:15
Place: Murbeckssalen, Ö. Vallgatan 14

External reviewer(s)

Name: Søchting, Ulrik
Title: Ass. Prof.
Affiliation: Copenhagen University


The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Department of Ecology (Closed 2011) (011006010)

Subject classification (UKÄ)

  • Ecology


  • morphology
  • taxonomy
  • Systematic botany
  • secondary chemistry
  • Xanthoria
  • anatomy
  • Teloschistaceae
  • lichenized Ascomycetes
  • phytogeography
  • chemotaxonomy. Physiology of nonvascular plants
  • Systematisk botanik
  • taxonomi
  • morfologi
  • kemotaxonomi. Växters fysiologi (inte kärlväxter).


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