Lichen Flora of the Greater Sonoran Desert Region (Tempe) 3: 311 (2007).

Synonyms: Index Fungorum

Protolog: Data lacking.

Protolog type data: Mexico, Baja California: Isla Cedros, north-facing slope on NE ridge top with pines at north end of the island, 28°22'N, 115°15'W, c. 400 m, on Pinus muricata, 18 Mar. 1994, T. H. Nash III 34.267 (Holotype, ASU; isotype, G).

Type locality: Mexico, Baja California, Isla Cedros, north-facing slope on NE ridge top with pines at north end of the island, on Pinus muricata, c. 400 m, 18.3.1994, T. H. Nash 34.267 (ASU - holotype; G - isotype).

Type locality coordinates: 28°22'N, 115°15'W.