| Name | Placodium ferrugineum (Hudson) Hepp |
| Authorship | (Hudson) Hepp |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Placodium Hill ex F. H. Wiggers |
| Contains | Placodium ferrugineum var. discolor Willey |
| Citation | 1870 Krypt.-Fl. Sachsen Abt. 2: 233 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Placodium ferrugineum (Hudson) Hepp |
| Identification made in | [no date] (7) |
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