Caloplaca sinapisperma (DC.) Maheu & A. Gillet

Syn.: Blastenia leucoraea (Ach.) Th. Fr., Blastenia sinapisperma (DC.) A. Massal., Bryoplaca sinapisperma (DC.) Søchting, Frödén & Arup, Caloplaca leucoraea (Ach.) Branth, Lecidea ferruginea (Huds.) Chevall. var. sinapisperma (DC.) Schaer., Lecidea fuscolutea Ach. var. leucoraea Ach., Lichen sinapispermus (DC.) DC., Patellaria sinapisperma DC., Placodium sinapispermum (DC.) Hepp
Lichenised.
Substrate: living mosses, plant debris, calciferous soil
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 holarctic lichen ranging from the Arctic zone to the high southern mountains, found on mosses and plant debris on calcareous or base-rich siliceous substrata, with optimum near or above treeline, sometimes reaching the montane belt in open habitats; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Fribourg; Graubünden; Schwyz; Ticino; Uri; Unterwalden; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Vaucluse; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia; Liechtenstein