| Hydnaceae Chevall., 1826 |
| Hydnum L., 1753 |
| Hydnum albidum Peck, 1887 |
| Hydnum atroviride Morgan, 1895 |
| Hydnum aurantiacum (Batsch) Alb. & Schwein., 1805 |
| Hydnum aurantile Britzelm., 1892 |
| Hydnum auriscalpium L., 1753 |
| Hydnum caruleum Hornem., 1808 |
| Hydnum concrescens Pers., 1796 |
| Hydnum confluens Pers., 1825 |
| Hydnum conigeneum Peck, 1903 |
| Hydnum coralloides Scop., 1772 |
| Hydnum cristatum Bres. ex G. F. Atk., 1902 |
| Hydnum erinaceus Bull., 1781 |
| Hydnum fennicum (P. Karst.) Sacc., 1888 |
| Hydnum ferrugineum Fr., 1815 |
| Hydnum fulgineoalbum J. C. Schmidt, 1817 |
| Hydnum fulgineoviolaceoum Kalchbr., 1874 |
| Hydnum fuscoindicum K. A. Harrison, 1964 |
| Hydnum gelatinosum Scop., 1772 |