LICHALP

Harpidium rutilans Körb.

Syn.: Acarospora rutilans (Körb.) Hue, Zeora rutilans Flot. nom. nud.

Lichenised.

Substrate: siliceous rocks

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: on steeply inclined surfaces of siliceous rocks; both in the Mediterranean region and in dry-warm valleys of the Alps, perhaps overlooked, but certainly not common.