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Using morphological, chemical, and molecular data to study the diversity of Xanthoparmelia species from South Africa (Ascomycota, Parmeliaceae)

Published online by Cambridge University Press:  22 September 2023

Alejandrina Barcenas-Peña*
Affiliation:
The Grainger Bioinformatics Center and Negaunee Integrative Research Center, Science & Education, The Field Museum, Chicago, IL 60605-2496, USA
Harrie J. M. Sipman
Affiliation:
Freie Universität, Botanischer Garten und Botanisches Museum, D-14195 Berlin, Germany
Volkmar Wirth
Affiliation:
Friedrich-Ebert-Straße 68, D-71711 Murr, Germany
Felix Grewe
Affiliation:
The Grainger Bioinformatics Center and Negaunee Integrative Research Center, Science & Education, The Field Museum, Chicago, IL 60605-2496, USA
H. Thorsten Lumbsch
Affiliation:
The Grainger Bioinformatics Center and Negaunee Integrative Research Center, Science & Education, The Field Museum, Chicago, IL 60605-2496, USA
*
Corresponding author: Alejandrina Barcenas-Peña; Email: abarcenas@fieldmuseum.org

Abstract

There is still a high diversity of lichen-forming fungi that remains undescribed, especially cryptic lineages at the species level. Integrating morphological, chemical, and DNA sequence data has proved useful in corroborating species descriptions and delimitations. Here we reviewed morphological features, secondary metabolites and the DNA sequences of ITS, mtSSU and nuLSU markers to study the diversity of Xanthoparmelia in southern Africa. A total of 37 species were recorded. Three of these appear undescribed, and we therefore describe them here as new: Xanthoparmelia nimisii, with a sorediate thallus and broad lobes, is well supported as a clade separate from X. annexa; X. pseudochalybaeizans with a white medulla is phylogenetically distinct from the otherwise similar X. chalybaeizans; and X. sipmaniana, well supported as a separate clade from the similar X. hypoprocetrarica. In addition, the separation of Xanthoparmelia capensis and X. tinctina requires further studies.

Information

Type
Standard Paper
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of the British Lichen Society

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