LICHALP

Acarospora fuscata (Schrad.) Arnold.

Syn.: Acarospora squamulosa (Schrad.) Trevis., Lichen fuscatus Schrad.

Lichenised.

Substrate: siliceous rocks, intermediate rocks (such as calciferous schists)

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 holarctic species of acid siliceous rocks wetted by rain, sometimes growing on other nitrophytic lichens; widespread throughout the Alps.