| Name | Parmelia ambigua (Wulfen) Acharius |
| Authorship | (Wulfen) Acharius |
| Rank | Species |
| Placed in | Parmelia Acharius |
| Contains | Parmelia ambigua var. halei Tuckerman |
| Citation | 1803 Methodus (Acharius) 207 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Parmelia ambigua (Wulfen) Acharius |
| Identification made in | [no date] (9) |
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