LICHALP

Ochrolechia crozalsiana Clauzade & Vězda

Syn.: Ochrolechia erichsenii Hafellner & Türk, Pertusaria tumidula Erichsen

Lichenised.

Substrate: siliceous 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 rare Mediterranean species known from France, Italy and perhaps the Iberian Peninsula; it is related to O. tartarea, but is morphologically and chemically different.