Species: Hypotrachyna taylorensis
Photos: On rock. Gougane Barra, Cork and Killarney, Co. Kerry. SW Ireland. Identification confirmed by John Douglass (photos)
Large, bluish-grey thallus with neither soredia or isidia. The upper surface is often crumpled and white-spotted with peeling fragments of cortex that are the chief means of distribution. Seldom fertile. Central lobes often overlap and point in same direction.
Occurs in old woodlands in W of Ireland on mossy trees and rocks.
Medulla K-, C+ red, UV+ blue-white
Hypotrachyna taylorensis. January 2009 and November 2010