LICHALP

Lecidea praenubila Nyl.

Syn.: Lecidea aeneola (Arnold) Vain., Lecidea atrocervina Vain., Lecidea helsingforsiensis Nyl.

Lichenised.

Substrate: 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 nival belt (above the lower limit of perennial snow and glaciers)

Note: an arctic-alpine to boreal-montane, perhaps circumpolar silicicolous species found on horizontal surfaces or on pebbles; much rarer in the alpine belt of the Alps than in Northern Europe. At least in Austria, there is no certain record: in the Alps the species might have been confused with L. subfumosa.