| Name | Placodium murorum de Candolle |
| Authorship | de Candolle |
| Rank | Species |
| Placed in | Placodium Hill ex F. H. Wiggers |
| Contains | Placodium murorum var. miniatum (Hoffmann) Duby |
| Citation | 1805 Fl. Franc. (Lamarck). 2: 378 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Placodium murorum de Candolle |
| Identification made in | [no date] (6) |