LICHALP

Lecidea leucothallina Arnold var. leucothallina

Syn.: Lecidea kujalae Räsänen

Lichenised.

Substrate: siliceous rocks, metal-rich siliceous 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: an arctic-alpine species found on boulders and siliceous pebbles, especially on crystalline schist near the ground, in sites with a long snow cover, with optimum above treeline; known only from the Alps and rarely collected.