| Name | Physcia phaea (Tuckerman) J. W. Thompson |
| Authorship | (Tuckerman) J. W. Thompson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Physcia (Schreber) Michaux |
| Citation | 1963 Beih. Nova Hedwigia 7: 54 |
| Holdings | 43 Specimens held in the Harvard University Herbaria identified as Physcia phaea (Tuckerman) J. W. Thompson |
| Identification made in | [no date] (42), 2010 (1) |