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Epiphloea belongs to Collemataceae (Lecanoromycetes, lichenized Ascomycota)

Published online by Cambridge University Press:  02 November 2015

Matthias Schultz ,
Mats Wedin ,
Henrike Diel  and
Maria Prieto
Matthias Schultz
Affiliation:
Herbarium Hamburgense, Biocenter Klein Flottbek, University of Hamburg, Ohnhorststraße 18, D-22609 Hamburg, Germany. Email: matthias.schultz@uni-hamburg.de
Mats Wedin
Affiliation:
Swedish Museum of Natural History, Department of Botany, P.O. Box 50007, SE-10405 Stockholm, Sweden
Henrike Diel
Affiliation:
University Medical Center Hamburg-Eppendorf, Campus Forschung (N27), Martinistraße 52, D-20246 Hamburg, Germany
Maria Prieto
Affiliation:
Swedish Museum of Natural History, Department of Botany, P.O. Box 50007, SE-10405 Stockholm, Sweden
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Abstract

The cyanolichen genus Epiphloea is currently included within the Heppiaceae (Lichinomycetes) based on ascus characteristics. The presumed presence of a prototunicate ascus has been used as support for this classification, despite the incongruence with other characters (e.g. spores). Here, we use a molecular phylogeny of the two markers mtSSU rDNA and Mcm7 to investigate the position of Epiphloea. In addition, we have re-investigated the ascus characteristics. Our results place the two species, Epiphloea byssina and E. terrena, within the Collemataceae, nested in Leptogium s. str. The ascus type in both species is shown to be Lecanoralean and similar to the ascus in other Collemataceae, with a strongly amyloid tube-like structure. This observation supports the placement within Lecanoromycetes and refutes the earlier suggested affinities with Heppiaceae and Lichinomycetes. The correct names for these species are Leptogium byssinum and Leptogium terrenum.

Keywords

cyanolichensLeptogiumlichensLichinomycetesphylogenysystematicstaxonomy
Type
Articles
Information
The Lichenologist , Volume 47 , Issue 6 , November 2015 , pp. 369 - 378
Copyright
© British Lichen Society, 2015 

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