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Taxonomic revision of Xanthomendoza borealis and Xanthoria mawsonii (Lecanoromycetes, Ascomycota)

Published online by Cambridge University Press:  26 August 2008

Louise LINDBLOM  and
Ulrik SØCHTING
Louise LINDBLOM
Affiliation:
Department of Biology, University of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway. Email: louise.lindblom@bio.uib.no
Ulrik SØCHTING
Affiliation:
Department of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark
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Abstract:

The xanthorioid taxa Xanthomendoza borealis and Xanthoria mawsonii are revised using morphological, anatomical, secondary chemical, and molecular characters. We conclude that most specimens determined as X. mawsonii from the Antarctic are conspecific with specimens labelled X. borealis from the Northern Hemisphere. Some specimens named X. mawsonii from the Antarctic are wrongly determined specimens of Xanthoria candelaria (L.) Th. Fr, including the holotype of Xanthoria mawsonii C. W. Dodge. Accordingly, Xanthoria mawsonii C. W. Dodge is a synonym to Xanthoria candelaria (L.) Th. Fr. The only available correct name for the bipolar species, which comprises material previously determined as X. borealis and X. mawsonii, and is distinct from the more widespread taxon X. candelaria, is Xanthomendoza borealis (R. Sant. & Poelt) Søchting, Kärnefelt & S. Kondratyuk.

Keywords

haplotype networksinternal transcribed spacerITSlichensnrDNAphylogenystatistical parsimonytaxonomyTCSTeloschistaceaeTeloschistales
Type
Research Article
Information
The Lichenologist , Volume 40 , Issue 5 , September 2008 , pp. 399 - 409
Copyright
Copyright © British Lichen Society 2008

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