LICHALP

Halecania alpivaga (Th. Fr.) M. Mayrhofer

Syn.: Lecania alpivaga Th. Fr., Lecania thallophila H. Magn.

Lichenised.

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

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) 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 cool-temperate to arctic-alpine species found on weakly calciferous and basic siliceous rocks in humid situations, frequently parasitic on various species of Placynthium (but also observed on Collema); probably more widespread in the Alps.