LICHALP

Physconia petraea (Poelt) Vězda & Poelt

Syn.: Physconia muscigena (Ach.) Poelt var. petraea Poelt

Lichenised.

Substrate: siliceous rocks, acidic soil (mostly on siliceous substrata),

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: on base-rich siliceous rocks and epilithic mosses in dry-warm situations, and in need of further study.