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The British endemic Enterographa sorediata is the widespread Syncesia myrticola (Roccellaceae, Arthoniales)

Published online by Cambridge University Press:  19 March 2018

Damien ERTZ ,
Brian J. COPPINS  and
Neil A. SANDERSON
Damien ERTZ
Affiliation:
Research Department, Botanic Garden Meise, Nieuwelaan 38, B-1860 Meise, Belgium; and Fédération Wallonie-Bruxelles, Direction Générale de l’Enseignement non obligatoire et de la Recherche scientifique, Rue A. Lavallée 1, B-1080 Bruxelles, Belgium. Email: damien.ertz@jardinbotaniquemeise.be
Brian J. COPPINS
Affiliation:
Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, UK
Neil A. SANDERSON
Affiliation:
3 Green Close, Woodlands, Southampton, SO40 7HU, UK
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Abstract

Enterographa sorediata is a corticolous, crustose lichen endemic to the southern part of Great Britain where it is confined to old-growth woodlands. This lichen is rarely fertile and mainly characterized by a sorediate thallus producing protocetraric acid. However, phylogenetic analyses using nuLSU, RPB2 and nuITS sequences suggest that E. sorediata belongs to the genus Syncesia and is conspecific with S. myrticola. This is corroborated by the chemistry and the recent observation of a thallus with both fully developed S. myrticola-like apothecia and soralia. This provides further evidence of the difficulties involved in correctly placing sorediate sterile morphs of crustose lichens into particular genera without using molecular data. An updated distribution map of S. myrticola for Great Britain and Ireland is provided, showing that the sorediate morph extends more inland whereas the fertile morph is more coastal.

Keywords

Arthoniomycetesbiodiversitylichenphylogenysorediate morphtaxonomy
Type
Articles
Information
The Lichenologist , Volume 50 , Issue 2 , March 2018 , pp. 153 - 160
Copyright
© British Lichen Society, 2018 

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