Thallus loosely tufted, to 3 cm tall, of dichotomously branched laciniae to 1.5 mm broad at base, narrowing to 0.3 mm wide at tips, slightly flattened or rarely subterete, smooth or in places obscurely faveolate but not canaliculate, ± fistulose, here and there with rounded holes, to 0.5 mm diam., exposing hollow cavity of interior, surface pale greenish-yellow or glaucous, shining, without soredia or pseudocyphellae. Apothecia numerous, subterminal or marginal, with a well-defined spur (geniculate), 1-3 mm diam., rounded, sub-pedicellate, thalline exciple smooth, disc plane or convex, pale yellow-pink with a thick glaucous-yellow pruina, margins concolorous with thallus, occluded in old fruits. Ascospores 6-8 per ascus, biseriate, straight or curved (10-)12-14 × 5-6 µm. Chemistry: Sekikaic and salazinic (tr.) acids.