Verrucaria saprophila (A. Massal.) Trevis.

Syn.: Amphoridium saprophilum A. Massal., Thelidium saprophilum (A. Massal.) Servít
Lichenised. Poorly known taxon.
Substrate: calciferous rocks
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: a rarely reported, southern- to central-European species of rather shaded calcareous rocks, which needs further study.
Austria: ?Vorarlberg; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); France: Haute-Savoie; Italy: Veneto; Trentino Alto Adige;