LICHALP

Physcia dimidiata (Arnold) Nyl. var. dimidiata

Syn.: Parmelia albinea Ach. var. dimidiata (Arnold) Jatta, Parmelia pulverulenta Ach. var. dimidiata Arnold

Lichenised.

Substrate: siliceous rocks, calciferous rocks, bark

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a Mediterranean to mild-temperate, probably holarctic lichen found on steeply inclined surfaces of basic siliceous rocks and calciferous sandstone, on old walls, more rarely on the basal parts of old trees, mostly below the subalpine belt.