LICHALP

Puttea caesia (Fr.) M. Svenss. & T. Sprib.

Syn.: Agyrium caesium Fr., Biatora symmictella (Nyl) Arnold, Lecanora symmictella (Nyl.) Hafellner non Vain., Lecidea symmictella Nyl.

Lichenised.

Substrate: bark, lignum

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: on hard lignum., e.g. on horizontal faces of old stumps, sometimes on mosses, mostly in upland areas; from the Alps there are several scattered records.