Lecidea promiscua Nyl.

Syn.: Lecidea dilabens Th. Fr., Lecidea gregalis Arnold, Lecidea speciosa Müll. Arg.
Lichenised. Poorly known taxon.
Substrate: siliceous rocks
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: a member of the difficult L. auriculata-complex, closely related to L. promiscens and with a similar ecology; apparently common in the alpine belt of the Alps, but overlooked.
Austria: Tirol; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Schwyz; Valais; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Isère; Italy: Friuli; Trentino Alto Adige;