Greenfoot Tooth

Hydnellum glaucopus is a species of tooth fungus in the family Bankeraceae, first described as a new species in 1969 and reclassified to its current genus in 2019. The fungus produces firm, woody fruit bodies with caps reaching up to 10 cm across that range in colour from yellowish-brown to purplish-brown, featuring tooth-like spines on their underside that mature from white to pale purplish-brown. Its flesh is primarily whitish with a yellow tint, turning distinctively greyish-green at the base of the stipe, and contains compounds called glaucopins.

The species forms mycorrhizal partnerships with coniferous trees and is widespread across Europe, extending northward into Scandinavia.

Hydnellum glaucopus forms an ectomycorrhizal association—a mutually beneficial partnership between its fungal filaments and the roots of coniferous trees—typically fruiting on the forest floor among needle litter and moss. The species is widespread across Europe, with its range extending northward into Scandinavia; scattered occurrences have been recorded as far north as Finnmark in northern...