| Name | Cladina stygia (Fries) Ahti |
| Authorship | (Fries) Ahti |
| Rank | Species |
| NomenclaturalStatus | Synonym |
| Placed in | Cladina Nylander |
| Citation | 1984 Beih. Nova Hedwigia 79: 45 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Cladina stygia (Fries) Ahti |
| Identification made in | [no date] (4) |
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