Identity between the fruit bodies of Hebeloma radicosum and the mycosymbiont in ectomycorrhizas colonizing mole latrines

It has been known that the agaric fungus Hebeloma radicosum fruits from mole latrines located in the ground and that ectomycorrhizas develop within the same latrines. But the identity between the fruit bodies on the ground and the mycosymbionts of the ectomycorrhizas below ground has not been established. Molecular genetic data revealed that the fungal hyphae composing the ectomycorrhizas are identical with the fruit bodies of H. radicosum. Furthermore, phylogenetic analysis clearly separated H. radicosum and H. radicosoides, suggesting that they are truly different species.