Lepraria membranacea (Dicks.) Vain.

Syn.: Amphiloma lanuginosum (Ach.) Nyl., Crocynia lanuginosa (Ach.) Hue, Crocynia membranacea (Dicks.) Zahlbr., Leproloma lanuginosum (Ach.) Nyl. ex Cromb., Leproloma membranaceum (Dicks.) Vain., Lichen membranaceus Dicks., Pannaria lanuginosa (Ach.) Körb., Psoroma lanuginosum (Ach.) Müll. Arg.
Lichenised.
Substrate: siliceous rocks, acidic soil (mostly on siliceous substrata), , bark
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 steeply inclined to weakly underhanging surfaces of siliceous rocks, sometimes on epilithic bryophytes, much more rarely on bark, often forming monospecific stands; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Switzerland: Bern; Glarus; Graubünden; Luzern; Schwyz; Ticino; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Vaucluse; Italy: Friuli; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Liguria;