Journal
LICHENOLOGIST
Volume 46, Issue 3, Pages 441-453Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0024282913000935
Keywords
Bacidia; ITS; Lecidea s. lat.; mrSSU; Mycobilimbia; Ramalinaceae; RPB2
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Funding
- Research Council of Norway through the Strategic University Programme 'Applications of molecular techniques in systematic biology'
- Grolle Olsen fund
- Felix-Ungerer-Stiftung
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The lichen genus Biatora comprises inconspicuous crustose lichens that are typically found on organic substrata such as tree bark, bryophytes and detritus. During the last 20 years many new species have been added to the genus making its delimitation more and more difficult. The infrageneric relationships of the 42 species have never been investigated thoroughly. Using DNA sequences from three gene loci (ITS, RPB2, mrSSU) and 59 OTUs, an attempt was made to reconstruct the phylogenetic relationships of Biatora and its infrageneric groups. Cliostomum appears to be the closest relative of Biatora. The position of Mycobilimbia in the Lecania-clade is confirmed. Phylogenetic relationships within Biatora are poorly supported, but six different species groups that are also phenotypically distinguished are more or less well supported: the vernalis-, meiocarpa-, hertelii-, ocelliformis-, beckhausii- and rufidula- groups. The analysis also confirms the presence of several undescribed taxa. Biatora subduplex as currently circumscribed appears to be heterogeneous, as does B. helvola. Based on the phylogeny, the distributional range of B. alaskana is extended to Japan. The new combinations Biatora ementiens (Nyl.) Printzen and Biatora hemipolia (Nyl.) S. Ekman & Printzen are made and both names are typified.
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