LICHALP

Gyalidea scutellaris (Bagl. & Carestia) Lettau

Syn.: Gyalecta arctica Malme, Gyalecta pseudogeoica Anzi, Gyalecta scutellaris Bagl. & Carestia

Lichenised.

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

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) 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: an arctic-alpine species found on humid, acid substrata, such as moribund bryophytes and soil rich in humus, with optimum above treeline.