Picture taken on the 16th August 2007 at the nearby of Puigmal mountain, Alta Cerdanya, France, in a crevice of a calcareous rock, very high for the species, 2.000 m. altitude, North oriented.
It is not a common species in Catalonia, although common and wide spread in humid climates in Spain and Europe.
Saxicolous, foliose thallus,brown, no soredia or isidia, incurved lobe edges with very small apothecia.