Thallus pale greenish-grey, rather thin, rugulose, isidiate. Isidia stunted-coralloid, c. 0.2 mm thick and to 0.5 mm tall. Apothecia 0.7-2.0 mm diam., disc plane or subconvex, brown, epruinose, slightly glossy, margins rather prominent, brown ± concolorous with disc, epruinose, slightly glossy. Epithecium diffuse orange-brown, 25-30 µm thick. Hymenium 140-160 µm tall, I-. Excipulum yellow-brown, with aggregates of fine, yellowish crystals (1 µm diam.) in upper part of ectal excipulum. Ascospores 1 per ascus, 1-septate, straight, 80-100 × 35-40 µm, wall 2 µm thick, epispore 0.5 µm thick, smooth. Chemistry: Usnic acid and zeorin.