Fruitbodies resupinate, initially circular, later growing together and effused up to 10 cm, readily separable, soft, fibrous, white when young, yellowish to tan when older or after drying. Grey tints not observed. Sterile margin narrow and well defined. Subiculum fibrous, 0-0.2 mm thick. Tubes about 1 mm long, pores 0.15- 0.25 mm diameter, averaging 3-4 per mm, generally rather regularly circular or slightly elongated, dissepiments 0.1-0.2 mm thick, entire. Context dimitic. Generative hyphae thin-walled, septate, with clamps, rarely branched, about 2.5 μm diameter. Skeletal hyphae thick-walled, non-septate, rarely branched, 4-6 μm diameter. A brownish, brittle, granular substance is present around and between the hyphae. The context also contains fairly numerous, irregularly shaped crystals, up to 10 μm diameter. Ripe hymenium not observed. Spores hyaline, smooth, curved, cylindric, 2-guttate or with granular contents, 6-7(-7.5) X 2-3 μm.