LICHALP

Lepraria nylanderiana Kümmerl. & Leuckert

Lichenised.

Substrate: siliceous rocks, bark, acidic soil (mostly on siliceous substrata)

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: on base-rich siliceous rocks and soil, including brick walls, but also on bark; the species can be considered as a good indicator of long ecological continuity, since it always occurs in old and well-preserved forests; in the Alps it is evidently rare.