Racodium rupestre Pers.
Syn.: Cystocoleus rupestris (Pers.) Rabenh., Rhacodiopsis rupestris (Pers.) Donk
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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: a widespread, temperate to southern boreal-montane, circumpolar lichen found on shaded, vertical or underhanging surfaces of siliceous rocks protected from rain, with a rather wide altitudinal range; undercollected, and certainly more widespread in the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Switzerland: Bern; St. Gallen; Valais; Italy: Trentino Alto Adige; Lombardia; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia;
