J. Linn. Soc. (Bot.) 15: 231 (1876).

Protolog: Data lacking.

Protolog type data: Data lacking.

Type locality: Chile, Region XII de Magallanes y de la Antarctica Chilena, Provincia de Magallanes, west coast of Patagonia, Port Grappler, Otter Islands, on trees, 16 March 1868, R. O. Cunningham (H-NYL 32929 - holotype [TLC: pigments]; BM, E, W2737 - isotypes).

Type locality coordinates: 49°25'S, 74°17'W.

Molecular barcode: Data lacking.

Thallus: corticolous, sometimes becoming muscicolous or overgrowing filmy ferns, closely adpressed, not easily detached, forming + regular rosettes, rarely fragmentary, 2-5-8-10 or more cm diam, pale to dark olive-brown + burnished red-brown or brown, sometimes paler towards the margins, or becoming brownish yellow then dry, dull olive-yelleo-green when wet, often becoming bright pale or yellowish brown in the herbarium, UV+ dull orange; main lobes spreading, especially at edges, often + .