LICHALP

Staurothele solvens (Anzi) Zschacke var. intermedia Cl. Roux & Vivant

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)

Note: a taxon with a pale brownish-grey thallus as the type variety, but asci 8-spored; on compact calciferous, schistose rocks at mid- to moderately high elevations in the mountains of SW Europe, including the Western Alps (France).