Cladonia firma (Nyl.) Nyl.

Syn.: Cladonia alcicornis (Lightf.) Fr. var. firma Nyl., Cladonia foliacea (Huds.) Willd. var. firma (Nyl.) Vain., Cladonia nylanderi Cout.
Lichenised.
Substrate:
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a mild-temperate lichen found on mineral, often base-rich soil in open Mediterranean grasslands, with several records from the base of the Western Alps and from dry-continental valleys.
France: Alpes-Maritimes; Vaucluse; Var; Italy: Trentino Alto Adige; Liguria;