LICHALP

Agonimia tristicula (Nyl.) Zahlbr.

Syn.: Polyblastia tristicula (Nyl.) Arnold, Sporodictyon tristiculum (Nyl.) Dalla Torre & Sarnth., Verrucaria tristicula Nyl.

Lichenised.

Substrate: , plant debris, calciferous soil, bark

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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 probably holarctic species with a wide altitudinal and latitudinal range, found on terricolous mosses, but also, albeit rarely, on basal parts of old trunks in calcareous areas; widespread and often common throughout the Alps.