Syn.: Callopisma tremniacense A. Massal., Candelariella tremniacensis (A. Massal.) Lettau
Lichenised. Poorly known taxon.
Substrate: calciferous 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 with a dark grey, areolate thallus, the areoles first concave and contiguous, then separate and becoming verrucose, yellow apothecia arising from the center of the areoles, first immersed, then sessile, with a flat disc and a thin concolour margin, a yellowish epiphymenium, clavate paraphyses, 8-spored asci, and polar-diblastic ascospores that are c. 2 times as long as wide; an interesting taxon, known only from the Eastern Pre-Alps, whose type material well deserves further study (see Nimis 1993: 191).
