This large fungus was growing off a hidden tree root right in the middle of the path at my local nature reserve. It is a Dryad’s Saddle (Polyporus squamosus). The fruiting body of these fungi is always on the dead wood of a deciduous tree, either up a tree stump or growing out of a tree root just underground, like this one. They appears quite early in the season, in late spring to summer, but quickly decay and are eaten by fly larvae.