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A taxonomic study of Melanelixia fuliginosa in Europe

Published online by Cambridge University Press:  01 February 2011

Ulf ARUP  and
Emma SANDLER BERLIN
Ulf ARUP
Affiliation:
Botanical Museum, Östra Vallgatan 18, SE-223 61 Lund, Sweden. Email: ulf.arup@botmus.lu.se
Emma SANDLER BERLIN
Affiliation:
Botanical Museum, Östra Vallgatan 18, SE-223 61 Lund, Sweden. Email: ulf.arup@botmus.lu.se
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Abstract

For a long time it has been discussed as to whether Melanelixia fuliginosa comprises one or two species: one darker, mainly saxicolous, and one lighter, mainly corticolous. To settle the question, a morphometric and a molecular analysis were carried out and analyzed using a principal component analysis (PCA). The morphometric analysis indicates a differentiation in several characters between material previously recognized as subspecies fuliginosa and glabratula, but also a considerable overlap in some of them. The molecular analysis of the nrITS DNA gene reveals a clear division of the taxa. Specimens belonging to Melanelia fuliginosa fall out in two different clades, which have good bootstrap support, corresponding to the subspecies fuliginosa and glabratula. Accordingly, we propose that the subspecies should be acknowledged as separate species, Melanelixia fuliginosa (Fr. ex Duby) O. Blanco et al. and Melanelixia glabratula (Lamy) Sandler & Arup.

Keywords

DNAITSlichenMelanelixia glabratulamolecular
Type
Research Article
Information
The Lichenologist , Volume 43 , Issue 2 , March 2011 , pp. 89 - 97
Copyright
Copyright © British Lichen Society 2011

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