in Elix, Johnston & Verdon, Mycotaxon 27: 278 (1986).

Basionym: Parmelia amazonica Nyl., Flora, Regensburg 68: 611 (1885).

Protolog type data: Corticola prope Santarem ad flumen Amazonum (Spruce coll. no. 111).

Type locality: Brazil, Pará, near Santarem at the Amazon river, on bark, Spruce 111.