Unknown fungus for ID please

Unknown fungus for ID please

Observation - Unknown fungus for ID please - UK and Ireland. Description: Found growing on possibly an Oak stump. About 5cm tall and 3 cm wide. Small brown fungus was growing on same truck (just about see one in the pic).

Found growing on possibly an Oak stump. About 5cm tall and 3 cm wide. Small brown fungus was growing on same truck (just about see one in the pic).