Fungus on tree

Fungus on tree

Observation - Fungus on tree. Description: This fungus is growing on a Sorbus tree in Bournemouth Central Gardens. It is perennial, has a green upper surface and orange/brown, honeycomb like flesh which is difficult to break off. I thought it is Rigidoporus ulmarius but the flesh isn't striped. Wh

This fungus is growing on a Sorbus tree in Bournemouth Central Gardens. It is perennial, has a green upper surface and orange/brown, honeycomb like flesh which is difficult to break off. I thought it is Rigidoporus ulmarius but the flesh isn't striped. What could it be?