Maple and willow.
Other broadleaved species.
Usually found fruiting on the stem and larger branches.
Tough and woody. Brownish-black upper surface generally indistinct. White pore layer usually significantly exposed that bruises to the touch. Tubes slotted, elongated, and maze-like. Usually quite flat against the stem with very little bracket formation.
Daedalea quercina (found on oak and brackets much larger).
Considered to be saprophytic. Usually found on dead sections of trees / fallen trees.