Caloplaca glaucescens (Bagl. & Carestia) Jatta

Syn.: Candelariella glaucescens (Bagl. & Carestia) Lettau, Gyalolechia glaucescens Bagl. & Carestia
Lichenised. Poorly known taxon.
Substrate: siliceous rocks
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species of uncertain affinity, with a grey, granulose-verrucose thallus, small, sessile apothecia with a plane, reddish disc and a paler thalline margin, articulated paraphyses with a yellow cap, 8-spored asci, and oblong-ellipsoid, 1-septate ascospores (the septum not pervious) measuring 12-15 × 4-5 µm; known only from the type collection, on granite, at c. 3,000 m; the type material would be worthy of further study.
Italy: Piemonte;