Thelidium pyrenophorum (Ach.) A. Massal.

Syn.: Involucrothele pyrenophora (Ach.) Servít, Paraphysothele viridis (Deakin) Zschacke, Sagedia pyrenophora (Ach.) Hepp, Thelidium borreri (Leight.) Mudd, Thelidium explicatum (Stirt.) Wheldon & A.Wilson, Thelidium mortensis Walt. Watson, Thelidium nylanderi (Hepp) Lönnr., Thelidium viride (Deakin) Zahlbr., Verrucaria pyrenophora Ach.; incl. Thelidium pyrenophorum (Ach.) A. Massal. f. intermedium Asta, Clauzade & Cl. Roux
Lichenised.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)
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: a widespread lichen with optimum on limestone and dolomite, but also found on calciferous sandstone; common throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Glarus; Graubünden; Luzern; Schwyz; Uri; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Savoie; Haute-Savoie; Vaucluse; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;