| Name | Cetraria tristis (Weber ex F. H. Wiggers) Fries |
| Authorship | (Weber ex F. H. Wiggers) Fries |
| Rank | Species |
| Placed in | Cetraria Acharius |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cetraria tristis (Weber ex F. H. Wiggers) Fries |
| Identification made in | [no date] (1) |
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