LICHALP

Buellia asterella Poelt & Sulzer

Lichenised.

Substrate: calciferous soil

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a mainly western European species growing on calciferous or gypsicolous soil in dry grasslands, presently extinct over much of its former range: the only verifiable extant populations being in the Vågå region of Norway.