Lecidea confluentula Müll. Arg.
Syn.: Lecidea matildae H. Magn., Lecidea rimiseda Nyl.
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 alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: known from NW Europe and the French Alps, this silicicolous species is related to L. fuscoatra, but is most frequent above treeline.
France: Haute-Alpes; Haute-Savoie; Italy: Trentino Alto Adige;