Funny thing I am not sure what fungus it is. However, I have pulled small sheets of material that is almost like leather out from beneath the bark on firewood when splitting it. It's very white kinda soft too.
I wonder if this is the same thing, and then they just dye it.
I wonder if this is the same thing, and then they just dye it.
-Edit- It usually looks like this, but sometimes grows into like a sheet between the bark, and wood. https://projects.ncsu.edu/cals/course/pp728/Armillaria/fans....