Fungi on roots of a dead Sorbus

Fungi on roots of a dead Sorbus

Observation - Fungi on roots of a dead Sorbus - UK and Ireland. Description: I cut down a dead Sorbus tree last year and this fungi is growing in the grass over the dead roots. Can anyone identify it for me? I've tried a couple of books on fungi without success. Many thanks.

I cut down a dead Sorbus tree last year and this fungi is growing in the grass over the dead roots.
Can anyone identify it for me?
I've tried a couple of books on fungi without success.
Many thanks.