| Name | Buellia petraea var. montagnei Tuckerman |
| Authorship | Tuckerman |
| Rank | Variety |
| Placed in | Buellia petraea (Wulfen) Branth & Rostrup |
| GUID | urn:lsid:indexfungorum.org:names:569299 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Buellia petraea var. montagnei Tuckerman |
| Identification made in | [no date] (2) |