LICHALP

Bacidia rosella (Pers.) De Not.

Syn.: Biatora alabastrina (Ach.) W. Mann, Lecidea alabastrina Ach., Lichen rosellus Pers.

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-Atlantic lichen found on deciduous trees (especially Acer and Fraxinus, but also on Quercus ilex), in humid, open forests and in woodlands along rivers; widespread in the Alps, but generally rare, and perhaps declining.