LICHALP

Calicium glaucellum Ach.

Syn.: Calicium discoidale Ach.

Lichenised.

Substrate: bark, lignum

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a temperate to boreal-montane, holarctic species found on lignum and acid bark, especially on decorticated stumps of conifers, but also of broad-leaved trees (e.g. on Castanea); widespread in the Alps, but not very common.