LICHALP

Physcia caesia (Hoffm.) Fürnr. var. caesia

Syn.: Hagenia caesia (Hoffm.) Bagl. & Carestia, Lichen caesius Hoffm., Parmelia caesia (Hoffm.) Ach., Physcia caesia (Hoffm.) Fürnr. var. ventosa (Lynge) Frey, Physcia ventosa (Lynge) Sántha

Lichenised.

Substrate: calciferous rocks, intermediate rocks (such as calciferous schists), siliceous rocks, lignum, bark

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: a cool-temperate to arctic-alpine, circumpolar species, common only in upland areas, mostly in natural habitats (e.g. on the top of calcareous boulders); it exceptionally grows also on bark and lignum impregnated with calcareous dust; widespread and common throughout the Alps.