LICHALP

Buellia aethalea (Ach.) Th. Fr.

Syn.: Buellia aethaleoides (Nyl.) H. Olivier, Buellia atropallidula (Nyl.) J. Lahm, Buellia baltica Erichsen, Buellia impressula (Leight.) A.L. Sm., Buellia nigerrima (Nyl.) Arnold, Buellia ocellata (Flörke ex Flot.) Körb. var. tenella Müll. Arg., Buellia subatra Erichsen, Buellia verruculosa (Sm.) Mudd, Gyalecta aethalea Ach., Lecanora umbrinofusca Nyl., Lecidea aethalea (Ach.) Nyl., Lecidea aethaleoides Nyl., Lecidea atroalbella Nyl., Lecidea nigerrima Nyl., Rinodina atropallidula (Nyl.) Arnold, Rinodina ocellulata Bagl. & Carestia, Rinodina umbrinofusca (Nyl.) H. Olivier

Lichenised.

Substrate: siliceous rocks

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: on horizontal to weakly inclined, exposed, hard, crystalline siliceous rocks wetted by rain, mostly in species-poor stands; widespread in the Alps, but common only in dry areas.