Fungus for ID, please

Fungus for ID, please

Observation - Fungus for ID, please. Description: Found this fungus when I opened up part of a rotting tree-stump. A thin, soft crust. White at the edges and going pink n the centre. I've not been able to find an ID: can anyone help, please?

Found this fungus when I opened up part of a rotting tree-stump. A thin, soft crust. White at the edges and going pink n the centre. I've not been able to find an ID: can anyone help, please?