Lecanora valesiaca (Müll. Arg.) Stizenb.

Syn.: Placodium valesiacum Müll. Arg., Squamaria valesiaca (Müll. Arg.) H. Olivier
Lichenised.
Substrate: intermediate rocks (such as calciferous schists), siliceous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: on base-rich rocks (gneiss, porphyr, schists, etc.) containing some calcium, in warm-dry situations.
Austria: Tirol; Salzburg; Switzerland: Graubünden; Valais; France: Savoie; Italy: Trentino Alto Adige; Piemonte; Valle d'Aosta; Liguria;