Yellow Bracket Fungus

Yellow Bracket Fungus

Observation - Yellow Bracket Fungus - UK and Ireland. Description: Lots of brackets growing round base of living tree - not sure what species. Upper surface pale yellow. Underside small white pores. Unable to break a piece off as too tough. Any ideas please? Growing on Ash Tree. Sent photos to local tree expert who ID it

Lots of brackets growing round base of living tree - not sure what species. Upper surface pale yellow. Underside small white pores. Unable to break a piece off as too tough. Any ideas please? Growing on Ash Tree. Sent photos to local tree expert who ID it as Perenniporia fraxinea.