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A new freshwater Porina (Porinaceae, Ostropales) from Great Britain

Published online by Cambridge University Press:  02 November 2015

Alan Orange*
Affiliation:
Department of Biodiversity and Systematic Biology, National Museum of Wales, Cathays Park, Cardiff CF10 3NP, UK. Email: alan.orange@museumwales.ac.uk

Abstract

Porina rivalis Orange is described as new from rocks in streams in Great Britain. The involucrellum is yellow or orange within, but dark grey to purplish red at the surface; the ascospores are 3-septate, 13·0–18·5×4·0–5·5 μm.

Type
Articles
Copyright
© British Lichen Society, 2015 

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