Porpidia tuberculosa (Sm.) Hertel & Knoph
Syn.: Huilia tuberculosa (Sm.) P. James, Lecidea confluens (Weber) Ach. var. tumida (A. Massal.) A. Massal., ?Lecidea cyclosora Lettau, Lecidea sorediza Nyl., Lecidea tumida A. Massal., Spiloma tuberculosum Sm.
Lichenised.
Substrate: siliceous rocks, intermediate rocks (such as calciferous schists), bark
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: on steeply inclined surfaces of siliceous rocks, or in woodlands, mostly near the ground.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Bern; Valais; France: Alpes-Maritimes; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia;