Opegrapha atra Pers. α. macularis (Ehrh.) A. denigrata.
Synonyms: Op. denigrata Ach! (Prodr. p. 24)
Localirty of collection: Ad cort. Juglandis regiae in planitie Vicetina.
Catalogue ID: MSNVE-24989
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.
