LICHALP

Staurothele solvens (Anzi) Zschacke var. solvens

Syn.: Polyblastia solvens Anzi, ?Staurothele meylanii B. de Lesd., Staurothele meylanii B. de Lesd. f. geographica O. Behr ex Servít, Staurothele meylanii B. de Lesd. f. papularis Servít, Staurothele meylanii B. de Lesd. f. superba Servít

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 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 a dark brown exciple, a concolorous, shield-like involucrellum, subspherical hymenial algae, 4-spored asci, and persistently subhyaline ascospores; on limestone and dolomite, often along creeks in the alpine belt; only known from the South European mountains (Alps, Pyrenees).