| Cladonia portentosa (Dufour) Coem. Bull. Acad. Roy. Sci. Belgique, ser. 2, 19: 43, 49. 1865. |
| |  Cenomyce portentosa Dufour Ann. Gén. Sci. Phys. 8: 69. Mai 1821. France, Landes, Saint-Sever, [1818], J.-M. Dufour s.n. |
| | | Lectotype PC-Desmazières, Isolectotype H-ACH- No. 1952, TUR-V- No. 13303, PC-Lenormand |
| | | : Ahti, T. 1978. Nomenclatural and taxonomic remarks on European species of Cladonia. Ann. Bot. Fenn. 15: 7-14. |
| | Cladina portentosa (Dufour) Follmann Philippia 4: 34. 15 Mar 1979. |
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