LICHALP

Acarospora hospitans H. Magn.

Syn.: Acarospora impressula Th. Fr. var. hospitans (H. Magn.) Clauzade & Cl. Roux

Lichenised.

Substrate:

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) 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: closely related to A. impressula; parasitic on several silicicolous species of Aspicilia; widespread throughout the siliceous Alps.