| Name | Physcia duplicorticata W. A. Weber & J. W. Thomson | 
| Authorship | W. A. Weber & J. W. Thomson | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Physcia (Schreber) Michaux | 
| Citation | 1975 Mycotaxon 3(1): 102-104 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Physcia duplicorticata W. A. Weber & J. W. Thomson | 
| Identification made in | [no date] (1), 2010 (1) |