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Marchantiana pyramus, M. ramulicola and Austroplaca thisbe (Teloschistaceae, lichenized Ascomycota) – three new twig lichens from southern Patagonia

Published online by Cambridge University Press:  22 September 2023

Ulrik Søchting Open the ORCID record for Ulrik Søchting [Opens in a new window] ,
Leo G. Sancho Open the ORCID record for Leo G. Sancho [Opens in a new window]  and
Ulf Arup Open the ORCID record for Ulf Arup [Opens in a new window]
Ulrik Søchting*
Affiliation:
Section for Ecology and Evolution, Department of Biology, University of Copenhagen, 2100 Copenhagen K, Denmark
Leo G. Sancho
Affiliation:
Universidad Complutense de Madrid, Facultad de Farmacia, Unidad de Botánica, S-28040 Madrid, Spain
Ulf Arup
Affiliation:
Botanical Museum, Lund University, SE-221 00 Lund, Sweden
*
Corresponding author: Ulrik Søchting; Email: ulriks@bio.ku.dk
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Abstract

Three twig-growing lichen species belonging to the family Teloschistaceae from southern Patagonia are described as new to science: Marchantiana pyramus sp. nov., with minute apothecia, orange due to dominant content of emodin, M. ramulicola sp. nov., with minute olive apothecia with dominant parietin and Austroplaca thisbe sp. nov., with clear yellow apothecia also with dominant parietin. Marchantiana subpyracea, M. epibrya and M. queenslandica are new combinations for species which, so far, are known only from New Zealand and Australia. Blastenia circumpolaris is shown to be very common in Patagonia and Marchantiana asserigena is documented for the first time from the Southern Hemisphere, viz. the Falkland Islands. The genus Marchantiana is analyzed here using three genes and is shown to be closely related to Yoshimuria; although appearing as paraphyletic, a monophyletic origin cannot be ruled out. Morphology, ecology and distribution support a monophyletic treatment and Marchantiana is therefore treated as such.

Keywords

biogeographyBlasteniaChileFalkland Islandsmolecular taxonomyTierra del FuegoYoshimuria
Type
Standard Paper
Information
The Lichenologist , Volume 55 , Special Issue 5: Special issue dedicated to Professor Pier Luigi Nimis , September 2023 , pp. 377 - 387
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of the British Lichen Society

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