Journal.
Basionym: Data lacking.
Synonym: Index Fungorum
Protolog: Data lacking.
Type locality: Data lacking.
Barcode: Data lacking.
Coordinates: Data lacking.
Thallus: foliose to subfruticose, forming small cushions up to 3 cm wide or extensive colonies, loosely adnate to ascending, attached by central umbilicus-like structure, lobate; lobes dorsiventral, flattened to convex, 0.1-0.5 mm wide, ±involute; tips truncate, often involute, 0.3-0.7(-1) mm wide; upper surface yellow to light orange, smooth to somewhat coarse, often wrinkled, sorediate; soredia granular, blastidious, in marginal to submarginal soralia or at lobe tips; upper cortex paraplectenchymatous; medulla white, reticulate, with short to elongate hyphae; lower cortex prosoplechtenchymatous; lower surface white to yellow, somewhat wrinkled, rarely with short, white hapters. Apothecia rare, laminal or appearing terminal, stipitate, up to 4 mm in diam.; margin smooth but often sorediate or lobulate; disc orange; epihymenium brown, c. 10 µm thick; hymenium hyaline below, 60-90 µm tall; paraphyses simple, cylindrical, septate; hypothecium hyaline to pale brown, 25-70 µm thick; asci clavate, 8-spored. Ascospores ellipsoid, polarilocular, hyaline, 12-15 x 5.5-8 µm; septum 3-6 µm wide. Pycnidia common, immersed, concolorous with upper surface or slightly darker; conidia ellipsoid, 3.8-5.8 x 1-1.5 µm (Nash et al. 2001: xx).
Photobiont: Trebouxioid green alga.
Chemistry: Upper surface K+ purple, C-, KC-, P-; parietin (major), fallacinal, emodin, teloschistin, parietinic acid (Nash et al. 2001: xx).
Ecology: On rock.
Molecular data: Genbank
Distribution: Database
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