In Persoonia 2: 389. 1962, the new combination Hydnellum piperatum (Coker) Maas G. was proposed, but it escaped my attention that the basionym, Sarcodon piperatus, had not been provided with a Latin description, rendering the new combination invalid. The following diagnosis, taken from Coker’s description and augmented with a few notes of my own, should validate the name.