LICHALP

Hymenelia heteromorpha (Kremp.) Lutzoni

Syn.: Aspicilia cinereorufescens (Ach.) A. Massal. var. heteromorpha Kremp., Ionaspis annularis H. Magn., Ionaspis heteromorpha (Kremp.) Arnold, Ionaspis ochracella (Nyl.) H. Magn., Ionaspis reducta H. Magn., Ionaspis rhodopsis (Sommerf.) Blomb. & Forssell var. melanopsis (Sommerf.) Zahlbr., Ionaspis schismatopis (Nyl.) Hue

Lichenised.

Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: a species with an epilithic, rimose, whitish thallus, small apothecia with black discs, and subglobose ascospores of c. 10 µm in diam.; on limestone and dolomite, widespread in Europe from the temperate to the arctic zone; widespread also in the Alps, but not common.