Acarospora versicolor Bagl. & Carestia
Syn.: Acarospora cineracea (Nyl.) Hue; incl. Acarospora miskolensis H. Magn.
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: on basic siliceous rocks, also on walls in small Alpine settlements, and on thin soil layers, probably more widespread in the Alps, below the subalpine belt.
Austria: ?Vorarlberg; Tirol; Steiermark; Niederösterreich (incl. Wien); Switzerland: Bern; Graubünden; Valais; France: Alpes-Maritimes; Savoie; Italy: Trentino Alto Adige; Lombardia; Piemonte;