Varicellaria lactea (L.) I. Schmitt & Lumbsch
Syn.: Lichen lacteus L., Ochrolechia lactea (L.) Matzer & Hafellner, Pertusaria lactea (L.) Arnold, Variolaria lactea (L.) Pers.; incl. Pertusaria lactea (L.) Arnold f. faginea Erichsen
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 alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: optimum on steeply inclined, lime-free, rather shaded surfaces of siliceous rocks in humid areas, rarely corticolous; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Burgenland; Switzerland: Bern; Graubünden; Luzern; Vaud; Valais; France: Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia;
