A new circumscription of the genus Varicellaria (Pertusariales, Ascomycota)
- The lichen-forming genus Pertusaria under its current circumscription is polyphyletic and its phylogenetic affiliations are uncertain. Here we study the species of the genera Pertusaria and Varicellaria which containlecanoric acid as major constituent, have disciform apothecia, strongly amyloid asci, non-amyloid hymenial gel, 1-2-spored asci, and 1- or 2-celled ascospores with thick, 1-layered walls. We infer phylogenetic relationships using maximum likelihood and Bayesian analyses based on four molecular loci (mtSSU, nuLSU rDNA, and the protein-coding, nuclear RPB1 and MCM7 genes). Our results show that the lecanoric acid-containing species form a well-supported, monophyletic group, which is only distantly related to Pertusaria s.str. The phylogenetic position of this clade is unclear, but placement in Pertusaria s.str. is rejected using alternative hypothesis testing. The circumscription of the genus Varicellaria is enlarged to also include species with non-septate ascospores. Seven species are accepted in the genus: Varicellaria culbersonii (Vězda) Schmitt & Lumbsch, comb. nov., Varicellaria hemisphaerica (Flörke) Schmitt & Lumbsch, comb. nov., Varicellaria kasandjeffii (Szatala) Schmitt & Lumbsch, comb. nov., Varicellaria lactea (L.) Schmitt & Lumbsch, comb. nov., Varicellaria philippina (Vain.) Schmitt & Lumbsch, comb. nov., Varicellaria rhodocarpa (Körb.) Th. Fr., and Varicellaria velata (Turner) Schmitt & Lumbsch, comb. nov. A key to the species of Varicellaria is provided.
Author: | Imke SchmittORCiDGND, Jürgen OtteORCiDGND, Sittiporn Parnmen, Anna Sadowska-Deś, Robert LückingORCiDGND, Helge Thorsten Lumbsch |
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URN: | urn:nbn:de:hebis:30:3-438893 |
DOI: | https://doi.org/10.3897/mycokeys.4.3545 |
ISSN: | 1314-4049 |
ISSN: | 1314-4057 |
Parent Title (English): | MycoKeys |
Publisher: | Pensoft Publishers |
Place of publication: | Washington, DC [u. a.] |
Contributor(s): | Cecile Gueidan |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2017/11/16 |
Year of first Publication: | 2012 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2017/11/16 |
Tag: | Agyriales; Ascomycota; Ostropomycetidae; Pertusaria; Pertusariales; lichen-forming fungi; molecular phylogeny; taxonomy |
Page Number: | 14 |
First Page: | 23 |
Last Page: | 36 |
Note: | Copyright Imke Schmitt et al. This is an open access article distributed under the terms of the Creative Commons Attribution License 3.0 (CC-BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
HeBIS-PPN: | 428730124 |
Institutes: | Biowissenschaften / Institut für Ökologie, Evolution und Diversität |
Fachübergreifende Einrichtungen / Biodiversität und Klima Forschungszentrum (BiK-F) | |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung 3.0 |