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A new species of Synarthonia from Luxembourg, and a new combination in the genus Reichlingia (Arthoniaceae)

Published online by Cambridge University Press:  29 July 2020

Damien Ertz
Affiliation:
Meise Botanic Garden, Department Research, Nieuwelaan 38, B-1860 Meise, Belgium Fédération Wallonie-Bruxelles, Service général de l'Enseignement supérieur et de la Recherche scientifique, Rue A. Lavallée 1, B-1080 Bruxelles, Belgium
André Aptroot
Affiliation:
Laboratório de Botânica / Liquenologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Avenida Costa e Silva s/n, Bairro Universitário, CEP 79070-900, Campo Grande, Mato Grosso do Sul, Brazil
Neil Sanderson
Affiliation:
3 Green Close, Woodlands, Southampton SO40 7HU, UK
Brian Coppins
Affiliation:
Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK
Dries Van den Broeck
Affiliation:
Meise Botanic Garden, Department Research, Nieuwelaan 38, B-1860 Meise, Belgium University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
Paul Diederich
Affiliation:
Musée national d'histoire naturelle, 25 rue Munster, L-2160 Luxembourg, Luxembourg
Corresponding

Abstract

A new species of Synarthonia, S. leproidica, is described from Luxembourg. Phylogenetic analyses of mtSSU and RPB2 sequences were used to determine the generic affiliation of this sterile species. Synarthonia leproidica differs from all other species of the genus by the combination of a leproid thallus and the production of psoromic acid. It is the sister species to S. muriformis in our phylogenetic analyses. The discovery of the new species suggests that other strictly sorediate lichen species might have been overlooked in Europe, even in intensely explored countries such as Luxembourg. Phylogenetic analyses further confirm the placement of Reichlingia anombrophila in the genus Reichlingia and of Synarthonia astroidestera in the genus Synarthonia. Arthonia atlantica is transferred to the genus Reichlingia as R. dendritica.

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Standard Papers
Copyright
Copyright © British Lichen Society 2020

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