LICHALP

Verrucaria poeltii (Servít) Breuss

Syn.: Involucrocarpon poeltii Servít

Lichenised.

Substrate: calciferous rocks

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: on very compact calcareous rocks; probably more widespread in the Alps, likely to have been confused with V. finitima and V. fischeri.