Dermatocarpon leptophyllodes (Nyl.) Zahlbr.

Syn.: Dermatocarpon diffractum (Th. Fr.) Blomb. & Forssell, Dermatocarpon lorenzianum Anders, Dermatocarpon miniatum (L.) W. Mann var. diffractum Th. Fr., Endocarpon leptophyllodes Nyl.
Lichenised.
Substrate:
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: a temperate to southern boreal-montane species found on periodically inundated surfaces of basic siliceous rocks. The species is not easily recognised as belonging to Dermatocarpon, the thallus consisting of tightly arranged squamiform lobes (but with the pseudoparenchymatic lower cortex which is typical for the genus); from the Alps there are only a few scattered records, but perhaps the speies has been overlooked.
France: Isère; Savoie; Italy: Valle d'Aosta;