LICHALP

Thelidium dionantense (Hue) Zschacke

Syn.: Verrucaria dionantensis Hue

Lichenised.

Substrate: calciferous rocks

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: on steeply inclined surfaces of calciferous rocks in upland areas; from the Alps there are only a few scattered records.