Staurothele ambrosiana (A. Massal.) Zschacke

Syn.: Dermatocarpon ambrosianum (A. Massal.) A. Massal., Paraphysorma ambrosianum A. Massal., Staurothele catalepta auct. medioeur. p.p. non (Ach.) Blomb. & Forssell
Lichenised. Poorly known taxon.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists), siliceous rocks, ,
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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 sheltered surfaces of calcareous rocks in humid situations. Related to S. frustulenta and S. areolata, and perhaps a synonym of one of these two species.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Burgenland; France: Alpes-de-Haute-Provence; Haute-Alpes; Isère; Savoie; Haute-Savoie; Italy: Veneto; Valle d'Aosta;