Thallus crustose, continuous to rimulose, subareolate-cracked to lacking, terricolous, saxicolous, corticolous or foliicolous. Photobiont green . Apothecia sessile to semi-immersed lecideine, pinkish to olive-brown to blackish, distinctly translucent when wet, disc concave, often deeply cupuliform to plane, matt or shining, smooth, margins well-developed, often over-arching disc, entire to crenulate-striate. Excipulum pachydermatous, hyphae septate, branched, densely conglutinate, colourless or pale. Hymenium 120-150 µm tall, colourless or pale. Paraphyses straight, simple or anastomosing, 0.8-1.5 µm thick, septate, apices slightly thickened. Asci cylindrical or clavate, walls thin, with a well-defined apical apparatus, 8-spored. Ascospores colourless, transversely septate to muriform, constricted at septa. Asci and hymenial gelatine brownish-yellow in I.