| Alectoria nigricans f. sorediata E. Dahl | ISOTYPE | O-L-135833 | Click on image for full size (36 MPx)
| Protolog: Dahl,E, Meddel. Grønland 150, 2: 147 (1950)
| | Locality: GREENLAND: Julianehaab District, Lichtenaufj., Qordlortorssuaq i Amitsuarssuk, 1937.08.22, Dahl, E.
| Currently accepted name: Alectoria nigricans (Ach.) Nyl.
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