LICHALP

Rinodina colobina (Ach.) Th. Fr.

Syn.: Lecanora colobina Ach., Rinodina leprosa A. Massal.

Lichenised.

Substrate: bark

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: a mild-temperate to Mediterranean lichen found on dust-impregnated bark of isolated trees, especially Populus, Fraxinus, Juglans and Ulmus, often on the basal parts of trunks; certainly declining, and presently extinct in several regions, probably due to the disappearance of unpaved roads during this century.