LICHALP

Acarospora tongletii (Hue) Hue var. tongletii

Syn.: Acarospora variegata H. Magn., Lecanora tongletii Hue

Lichenised.

Substrate: siliceous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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, probably circumpolar species, most frequent on base-rich sandstone walls; much overlooked, and perhaps more widespread in the Alps.