Folia Cryptog. Estonica 1: 1 (1972).

Basionym: Cladonia cornuta var. groenlandica &Arin;. E. Dahl in Meddel. Grønland 150, 2: 100 (1950).

Type locality: Greenland, Julianehaab District, Agdluitsoq (Lichtenaufjord), Sletten, 1937, Å E. Dahl s.n. (O - holotype; O - isotype).