Micarea lithinella (Nyl.) Hedl.
Syn.: Lecidea lithinella Nyl.
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: on compact siliceous rocks in rather sheltered situations; from the Alps there are a few scattered records.
Austria: ?Vorarlberg; Steiermark; Niederösterreich (incl. Wien); Switzerland: Luzern; Schwyz; Italy: Trentino Alto Adige;