A small grey shallow cup fungus found on decaying wood, with a smooth pale grey to brownish-grey inner fertile surface, and a downy margin 

There are several other grey Mollisia in this complex of species

Photograph in habitat, and note substrate and associated tree species

Decaying wood in woodlands

It is likely that Mollisia 'cinerea' is a part of a compelx of similar grey species - it may be best recorded as sensu lato or as a species aggregate.  See Laessoe & Petersen 2019 - who refer to the genus as 'poorly understood'.