Sub-Gen Phlegmacium, Myxacium, Dermocybe, Telamonia, Hygrocybe. Gills persistent, distinct from hymenophorum. Hymenophorum continuous with stem. Gills split longitudinally, with the two divisions spreading. Hymenium, or spore-bearing surface, inferior, lining the cavities of tubes or pores, which are sometimes broken up into plates.
Spores globose, or broadly elliptic and rough.
Pores not easily separable. Pores concrete with the pileus. Substance waxy, with sinuous toothed folds. Fructifying surface spread over spines or teeth. Spines awl-shaped, distinct.