| Name | Rhizocarpon massalongoi (Körber) Malme |
| Authorship | (Körber) Malme |
| Rank | Species |
| Placed in | Rhizocarpon Ramond ex de Candolle |
| GUID | urn:lsid:indexfungorum.org:names:533335 |
| Holdings | 28 Specimens held in the Harvard University Herbaria identified as Rhizocarpon massalongoi (Körber) Malme |
| Identification made in | [no date] (28) |