LICHALP

Toninia squalida (Ach.) A. Massal.

Syn.: Bacidia acervulans (Nyl.) B. de Lesd., Bilimbia caulescens (Anzi) Jatta, Bilimbia multiseptata (Anzi) Jatta, Bilimbia squalida (Ach.) Jatta, Lecidea acervulans Nyl., Lecidea caulescens (Anzi) Tuck., Lecidea norvegica Sommerf., Lecidea squalida Ach., Toninia acervulans (Nyl.) H. Olivier, Toninia catalaunica V. Wirth & Llimona, Toninia caulescens Anzi, Toninia cinereovirens (Schaer.) A. Massal. var. verruculosa Th. Fr., Toninia havaasii H. Magn., Toninia multiseptata Anzi, Toninia squarrosa (Ach.) Th. Fr., Toninia verruculosa (Th. Fr.) Vain.

Lichenised.

Substrate: siliceous rocks, intermediate rocks (such as calciferous schists), calciferous rocks, , , acidic soil (mostly on siliceous substrata), calciferous soil

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: an incompletely holarctic lichen with a very broad latitudinal range, found on soil, more rarely on weathered base-rich or weakly calciferous siliceous rocks in dry-warm upland areas, often associated to cyanobacteria or cyanobacterial lichen when young.