Picture taken on the 7th April 2007 at Targasonne, Alta Cerdanya, Oriental Pyrenees, France, Catalonia, on a flat surface,in a shady place.
It is a common species in upland areas. In the Cerdanya it is very common on Salix sp. bark and small walls. Both, epiphytal and saxicolous in nutrient enriched places or manured places.
Foliose thallus, small, although living close together to other thallus, short lobes, contorted. Frequent soredia and apothecia.