Birch Polypore

Birch Polypore

Observation - Birch Polypore - UK and Ireland. Description: This is the underside and top view of a fungus growing on a fallen tree. Several others were growing on similar trees nearby. I'd be interested to know what it is please.

This is the underside and top view of a fungus growing on a fallen tree. Several others were growing on similar trees nearby. I'd be interested to know what it is please.