Thelidium auruntii (A. Massal.) Kremp.

Syn.: Involucrothele auruntii (A. Massal.) ServĂ­t, Verrucaria auruntii A. Massal.
Lichenised.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)
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: differing from Th. pyrenophorum in the well-developed, brown thallus and the smaller spores, this species, also known from Scandinavia, grows on limestone, dolomite and calciferous schists in upland areas.
Austria: ?Vorarlberg; Salzburg; Oberösterreich; Germany: Oberbayern; Schwaben; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Savoie; Haute-Savoie; Italy: Veneto; Trentino Alto Adige;