Buellia subsquamosa J. Steiner
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 rarely collected lichen of porous siliceous rocks rich in minerals, both in the Mediterranean area and in dry-continental valleys of the Alps, where it exceptionally reaches the subalpine belt.
Switzerland: ?Valais; France: Haute-Alpes; Vaucluse; Italy: Trentino Alto Adige;
