It is adorned by sturdy, clavate, simple ribs. Third joint of the maxillary palpi clavate, shorter than the second. The spur is cylindrical or clavate, horizontal or ascending. Basidia are usually 4-spored, cylindrical to clavate. Basidia clavate, in most cases pleurobasidiate, with four sterigmata. Column green, yellow toward the apex, arcuate, clavate, winged. The shell is rather evolute, ornamented with ribs and clavate tubercles. Antennae are clavate (club shaped). The telson ranges from styliform to clavate. Asci are often clavate and evanescent, bearing eight spores. The basidia are roughly clavate (club-shaped). Basidia cylindrical to narrowly clavate, mostly with two sterigmata which are large and strongly incurved. Stromata of some species (Podostroma) are clavate or turbinate. The antennae are clavate (club shaped). The tentacles are low-seated, stout, and clavate.