| Name | Placodium ferrugineum var. discolor Willey |
| Authorship | Willey |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Placodium ferrugineum (Hudson) Hepp |
| GUID | urn:lsid:indexfungorum.org:names:587388 |
| Citation | 1882 Syn. N. Amer. Lich. 1: 178 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Placodium ferrugineum var. discolor Willey |
| Identification made in | [no date] (1) |
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