| Name | Rhizocarpon concentricum (Davies) Beltramini | 
| Authorship | (Davies) Beltramini | 
| Rank | Species | 
| Placed in | Rhizocarpon Ramond ex de Candolle | 
| GUID | urn:lsid:indexfungorum.org:names:403973 | 
| Citation | 1858 Lich. Bassan. 187 | 
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Rhizocarpon concentricum (Davies) Beltramini | 
| Identification made in | [no date] (7) |