LICHALP

Placidium lachneum (Ach.) B. de Lesd. var. oleosum (Breuss) Breuss

Syn.: Catapyrenium lachneum (Ach.) R. Sant. var. oleosum Breuss

Lichenised.

Substrate: calciferous soil, acidic soil (mostly on siliceous substrata), plant debris

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: a variety without or with a few pycnidia only, and cells of the lower cortex with many oil droplets; on soil over a wide range of rocks; overall distribution arctic-alpine; widespread in the Alps, mainly from the alpine to nival belt, but not always distinguished.