Caloplaca luctuosa (Anzi) Jatta

Syn.: Biatorina luctuosa Anzi
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 with a granulose, olive-coloured thallus delimited by a black prothallus, small, zeorine, black, sessile apothecia with a plane to convex disc, a greenish brown epihymenium and a pale hypothecium, 8-spored asci, and 1-septate, ellipsoid ascospores with a thick epispore, measuring c. 14 × 8 µm; this is probably a species of Lecania (see Nimis 1993: 190).
Italy: Lombardia;