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A revision of the lichen genus Ochrolechia in China

Published online by Cambridge University Press:  18 January 2017

Qiang REN
Qiang REN*
Affiliation:
College of Life Sciences, Shandong Normal University, Ji’nan 250014, China. Email: rendaqiang@hotmail.com
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Abstract

The lichen genus Ochrolechia found in China is revised. Twenty taxa are accepted in the genus, including four described as new to science: Ochrolechia alticola, differing from O. mexicana by the larger ascospores and the absence of lichexanthone, and from O. africana by the C+ red reaction of the apothecial margin cortex, the absence of 5-O-methylhiascic acid, and its alpine habitat; O. lijiangensis, differing from O. longispora by the larger apothecia and smaller ascospores, and by the presence of an additional undetermined fatty acid; O. longispora, differing from O. trochophora by the larger ascospores and the presence of two fatty acids; and O. rugomarginata, differing from O. pallescens in the minutely verruculose margins of the mature apothecia, the absence of variolaric acid and the C+ red thallus cortex, and from O. trochophora var. trochophora by the presence of alectoronic acid in the apothecial medulla, the coarsely pruinose disc and a preference for the bark of coniferous trees. Four new taxa are reported for China: Ochrolechia arborea, O. mahluensis, O. szatalaënsis and O. trochophora var. pruinirosella. An identification key to all taxa in the genus known from China is provided.

Keywords

lichen substanceslichenized AscomycotaOchrolechiaceaePertusarialestaxonomy
Type
Articles
Information
The Lichenologist , Volume 49 , Issue 1 , January 2017 , pp. 67 - 84
Copyright
© British Lichen Society, 2017 

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