Annals Cryptog. Exot. 6, 2: 112 (1933).
Type locality: Mexico, Veracruz, Jalapa (=Xalapa), sur un arbre, 2700 m, G. Arsène et Amable Saint-Pierre 801 (UPS - isotype fide Jørgensen 1973: 56.
Type locality coordinates: Data lacking.
Molecular barcode: Data lacking.
Thallus: flat to involute, lobate, spreading, greyish-blue to brownish, loosely attached, corticolous, 1-3(-6) cm diam. Lobes 2-8 mm wide ... (Galloway & Jörgensen 1995: 239).
Photobiont: Data lacking.
Chemistry: No lichen substances.
Ecology: Epiphytic on shrubs and trees in shaded, humid habitats in rainforest among mosses (Galloway & Jörgensen 1995: 240).
Distribution Type: Mexico, Portugal (Jörgensen 1973), Tristan da Cunha (Jörgensen 1977), East Africa (Swinscow & Krog 1988), New Zealand (Galloway 1985).
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