LICHALP

Lecanora viridiatra (Stenh.) Nyl. ex Zahlbr.

Syn.: Biatora viridiatra Stenh., Lecidea luteoatra Nyl., Lecidea viridiatra (Stenh.) Schaer. non Ach. nec (Wulfen) Lamy, Psora viridiatra (Stenh.) Anzi

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 alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: a species of steeply inclined to vertical surfaces of very hard siliceous rocks rich in quartz, in seepage tracks, near or above treeline.