LICHALP

Opegrapha parasitica (A. Massal.) H. Olivier

Syn.: Leciographa centrifuga (A. Massal.) Rehm, Opegrapha centrifuga A. Massal., Leciographa parasitica A. Massal.

Non- or doubtfully lichenised.

Substrate: calciferous rocks,

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 parasite on Aspicilia calcarea and related species, certainly much more widespread in the Alps; in the past it was often confused with O. rupestris.