I’m not sure if the identity is correct.
Found in a downed and mostly rotted tree.
This is a salix discolor, pussywillow bush with an unknown mushroom growth. I've treated it with copper sulfate both foliar and root drench and it does nothing but grow back. It grows mycelially as well with small sprouts in the mulch. It heavily stunts the growth of the bush and I'm not sure what it is. Ripped off fruit more than once and it just grows back when it rains