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A molecular study of the lichen genus Byssoloma Trevisan (Pilocarpaceae) with descriptions of three new species from China

Published online by Cambridge University Press:  11 November 2020

Wei-Cheng Wang
Affiliation:
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing100101, China University of Chinese Academy of Sciences, Beijing100049, China
Pieter van den Boom
Affiliation:
Evolution and Conservation Biology Unit, University of Liège, Sart Tilman B22, B-4000Liège, Belgium
Ek Sangvichien
Affiliation:
Department of Biology, Faculty of Science, Ramkhamhaeng University, Bangkok10240, Thailand
Jiang-Chun Wei*
Affiliation:
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing100101, China University of Chinese Academy of Sciences, Beijing100049, China
*
Author for correspondence: Jiang-Chun Wei. E-mail: weijc2004@126.com

Abstract

A molecular phylogeny of the genus Byssoloma is inferred from mtSSU sequences using Bayesian and maximum likelihood phylogenetic analyses. Byssoloma subdiscordans is resolved as sister to B. citricola rather than to the B. leucoblepharum clade, the B. subundulatum group (species with a compact apothecial margin) is shown to be a monophyletic group, and three species belonging to this group are described as new to science from Hainan Province in China: B. brunneodiscum W. C. Wang & J. C. Wei, with dark brown apothecia, crystals in the excipulum and the presence of 2,5,7-trichloro-3-O-methylnorlichexanthone; B. rubrofuscum W. C. Wang & J. C. Wei, with red-brown apothecia, 3–6-septate ascospores and the presence of 5,7-dichloro-3-O-methylnorlichexanthone; B. melanodiscocarpum W. C. Wang & J. C. Wei, with pure black apothecia, a K+ olive-black hypothecium and the presence of thiophanic acid.

Type
Standard Papers
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press on behalf of the British Lichen Society

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A molecular study of the lichen genus Byssoloma Trevisan (Pilocarpaceae) with descriptions of three new species from China
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