| Autor: |
Wei X; State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China., Schmitt I; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, Frankfurt am Main, Germany.; Department of Biological Sciences, Institute of Ecology, Evolution and Diversity, Goethe Universität, Frankfurt am Main, Germany., Hodkinson B; Squamules Unlimited, Henrico, VA, United States of America., Flakus A; Laboratory of Lichenology, W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, Kraków, Poland., Kukwa M; Department of Plant Taxonomy and Nature Conservation, University of Gdańsk, WitaStwosza 59, Gdańsk, Poland., Divakar PK; Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense, Plaza de Ramon y Cajal s/n, Madrid, Spain., Kirika PM; Botany Department, NationalMuseums of Kenya, Nairobi, Kenya., Otte J; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, Frankfurt am Main, Germany., Meiser A; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, Frankfurt am Main, Germany., Lumbsch HT; Science & Education, The Field Museum, Chicago, Illinois, United States of America. |
| Abstrakt: |
Pertusarialean lichens include more than 300 species belonging to several independent phylogenetic lineages. Only some of these phylogenetic clades have been comprehensively sampled for molecular data, and formally described as genera. Here we present a taxonomic treatment of a group of pertusarialean lichens formerly known as "Pertusaria amara-group", "Monomurata-group", or "Variolaria-group", which includes widespread and well-known taxa such as P. amara, P. albescens, or P. ophthalmiza. We generated a 6-locus data set with 79 OTUs representing 75 species. The distinction of the Variolaria clade is supported and consequently, the resurrection of the genus Lepra is followed. Thirty-five new combinations into Lepra are proposed and the new species Lepra austropacifica is described from mangroves in the South Pacific. Lepra is circumscribed to include species with disciform ascomata, a weakly to non-amyloid hymenial gel, strongly amyloid asci without clear apical amyloid structures, containing 1 or 2, single-layered, thin-walled ascospores. Chlorinated xanthones are not present, but thamnolic and picrolichenic acids occur frequently, as well as orcinol depsides. Seventy-one species are accepted in the genus. Although the distinction of the genus from Pertusaria is strongly supported, the relationships of Lepra remain unresolved and the genus is tentatively placed in Pertusariales incertae sedis. |
