Caloplaca subsoluta (Nyl.) Zahlbr.

Syn.: Callopisma aurantiacum (Lightf.) A. Massal. var. irrubescens Arnold, Caloplaca aurantia (Pers.) Hellb. var. irrubescens (Arnold) Jatta, Caloplaca irrubescens (Arnold) Zahlbr., Lecanora murorum (Ach.) Ach. subsp. subsoluta Nyl., Lecanora subsoluta (Nyl.) Nyl., Placodium aurantiacum (Lightf.) Anzi subsp. irrubescens (Arnold) A.L. Sm., Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a mild-temperate to subtropical, widespread lichen found on steeply inclined, sunny surfaces of basic siliceous rocks, often with Peltula euploca, but less bound to seepage tracks.
Austria: ?Vorarlberg; Tirol; Kärnten; Steiermark; Switzerland: Ticino; Valais; France: Haute-Alpes; Alpes-Maritimes; Savoie; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;