Lecanora gisleriana Müll. Arg.

Syn.: Lecanora gisleri Poelt & Ullrich non (Anzi ex Arnold) Arnold
Lichenised.
Substrate:
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) 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 iron rich siliceous rocks near and above treeline, parasitic on the thalli of L. epanora, L. handelii and L. subaurea; widespread but localised in the Alps.
Austria: Tirol; Salzburg; Kärnten; Switzerland: Uri; France: Haute-Savoie; Italy: Valle d'Aosta;