Rhizocarpon albo-atrum var. epipolium Trevis.

Synonyms: Lichen epipolius Ach. (Prodr. p. 58); Lecidea calcaria A. cretacea B. minor Schaer. (Lich. helv. exs. n. 230); Diplotomma Weissii var. margaritaceum Beltr. (Lich. bass. p. 180)
Localirty of collection: Ad lapides calcareas circa Rubbio et Asiago Septem Communium.
Catalogue ID: MSNVE-24986

All images have been taken by Dr. Maria Zardini. They are property of the Natural History Museum of Venbice, and are distributed under a CC BY licencse.