Genus HydnumThe typical genus Hydnum has the teeth cylindrical, so that a cross section would appear circular. This is the only large genus, and in it are found several important edible species. These may be put in two groups, one containing the species with a cap and central stem, and one the species growing in branched masses with no distinct cap. These are commonly known as Hedgehog Mushrooms.
Hydnum Caput Medusae
Hydnum Caput Ursi