LICHALP

Lecanora frustulosa (Dicks.) Ach.

Syn.: Lecanora frustulosa (Dicks.) Ach. var. ludwigii (Spreng.) Th. Fr., Lecanora hydrophila Sommerf., Lecanora ludwigii (Spreng.) Ach., Lecidea boissoniana Croz., Lichen frustulosus Dicks., Patellaria frustulosa (Dicks.) Trevis., Toninia boissoniana (Croz.) Zahlbr.

Lichenised.

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

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 weakly calciferous siliceous rocks, often in otherwise dry seepage tracks, mostly in upland areas.