The lichens and lichenicolous fungi of Haida Gwaii (Queen Charlotte Islands), British Columbia, Canada. 5. A new species of Lecanora from shoreline rocks

Brodo, Irwin M.
April 2010
Botany;Apr2010, Vol. 88 Issue 4, p352
Academic Journal
A species of Lecanora in the L. dispersa group, with a well-developed pale thallus and a granular epihymenium, resembling L. albescens, is found exclusively on shoreline rocks and appears to be new. It is described as Lecanora schofieldii sp. nov., found mainly in the Pacific Northwest, but also rarely on the northeast coast. Its distinctions from similar species on shoreline rocks are given, together with a key for their identification. The first western record of L. xylophila from rocks is given. L'auteur rapporte une espèce de Lecanora du groupe L. dispersa montrant un thalle pâle bien développé, avec un épihyménium granulaire; on le retrouve exclusivement sur des rochers maritimes et ressemble au L. albescens, pouvant constituer une nouvelle espèce. L'auteur le décrit comme Lecanora schofieldii sp. nov., présent surtout dans le nord-ouest du Pacifique mais aussi, bien que plus rarement, sur la côte nord-est. Il présente les caractéristiques le distinguant d'espèces similaires des rochers maritimes ainsi qu'une clé pour leurs identifications. Il mentionne également pour la première fois dans l'ouest, le L. xylophila sur rochers.


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