Porina leptosperma Müll. Arg.

Syn.: Phylloporina leptosperma (Müll. Arg.) Müll. Arg.
Lichenised.
Substrate:
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: an obligately foliicolous lichen with tropical-subtropical affinities; in the study area so far known only from the base of the Western Alps (France).
France: Alpes-Maritimes; Isère;