| Name | Rhizocarpon petraeum (Wulfen) A. Massalongo |
| Authorship | (Wulfen) A. Massalongo |
| Rank | Species |
| Placed in | Rhizocarpon Ramond ex de Candolle |
| GUID | urn:lsid:indexfungorum.org:names:404063 |
| Citation | 1852 Ric. Auton. Lich. Crost. 102 |
| Holdings | 56 Specimens held in the Harvard University Herbaria identified as Rhizocarpon petraeum (Wulfen) A. Massalongo |
| Identification made in | [no date] (56) |