Nordic J. Bot. 31, 1: 38 (2013).

Basionym: Physcia decipiens Arnold, Flora, Regensburg 50: 562 (1867).

Thallus: crustose, lobes elongate, margin abrupt at edge, with elongated lobes 0.5-2 mm long, 0.5-1 mm wide; prothallus absent; surface yellowish orange, pruinose; soralia present, delimited, marginal, on lobe tips; soredia fine; cortex cellular, 20-40 µm thick, with granules insoluble in K; medulla prosoplectenchymatous, with granules insoluble in K. Apothecia rare, adnate, 0.4-1 mm diam, lecanorine; disc orange, flat, epruinose; margin persistent, slightly raised; thalline margin present, concolorous with thallus; proper margin visible or not, concolorous with disc; parathecium elongate to oval cells; exciple below hypothecium amorphous; epihymenium golden, K+ red, H-, 10%N-, cN-, C-; hymenium hyaline, 55-85 µm tall; paraphyses with 1-2 tip swollen cells, not branched or with few branches; subhymenium hyaline. Asci cylindrical, 8-spored. Ascospores hyaline, 2 locules, ellipsoid, 12.5-15.5 x 5.5-7 µm, isthmus 1.5-3 µm, spore end wall thin; Pycnidia present, totally immersed, ostiole orange (Nash et al. 2001: xx).

Photobiont: Data lacking.

Chemistry: Apothecial margin K+ red, H-, 10% N-, cN-, C-; thallus K+ red, H-, 10%N-, cN-, C-; medulla IKI-; parietin, fallacinal, emodin, and teloschistin (Nash et al. 2001: xx).

Ecology: On non-calcareous or calcareous rocks.