Fungi in my leaf bin

Fungi in my leaf bin

Observation - Fungi in my leaf bin - UK and Ireland. Description: Can anyone tell me what this is please? Is it edible? There's quite a few growing in my leaf bin which hasn't been disturbed for several years. The cap is grey.

Can anyone tell me what this is please? Is it edible? There's quite a few growing in my leaf bin which hasn't been disturbed for several years. The cap is grey.