Picture taken during the summer 2007 at Plan d'eau, Osseja, Alta Cerdanya, Oriental Pyrenees, France, on a tree stump, near the base,1300 m. altitude in a ntrient rich place, municipal park.
Subcrustose lichen, very adpressed, thallus greenish, small but in a coalescent way covering large areas. Lobes long and less than 0.5 cm, often overlapping. A lot of soralia.
Very beatiful pictures in:
Timdal' s Photo Gallery.
Brodo, I.M., Sharnoff, S.D. Sharnoff, S (2001) Lichens of North America- Yale University.