Mycotaxon 27: 576 (1986).

Synonyms: Index Fungorum

Type: Namibia, District Omaruru, Laguneberg Mountains, NE of Mile 72, Grid 2114 CC, 8 January 1986, M. E. Hale 75100 (US - holotype; PRE - isotype).

Thallus: adnate to tightly adnate, soft, 5-8 cm broad, yellowish green to grayish white; lobes sublinear, 0.5-1.1 mm wide, rather crowded and imbricate to areolate-bullate at the center; upper surface continuous, emaculate, shiny to dull and white-pruinose, faintly reticulate white-maculate at the tips, becoming transversely cracked, isidia and soredia lacking; medulla white; lower surface plane, pale brown, 0.3-0.5 mm long, simple. Pycnidia and Apothecia lacking.

Photobiont: Trebouxia.

Chemistry: Evernic acid, lecanoric acid (trace), usnic acid.

Ecology: on rock.

Molecular data: Genbank

Distribution: Database

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