? Artist's bracket fungus

? Artist's bracket fungus

Observation - ? Artist's bracket fungus. Description: These 2 specimens were found on an oak in an old wood in Derby. They were hard and corky, and the margins were acute. Both were low down, one being very close to the ground.

These 2 specimens were found on an oak in an old wood in Derby.
They were hard and corky, and the margins were acute.
Both were low down, one being very close to the ground.