A small shell-like or conical cap attached at one edge to bark or dead wood. The cap is greyish or brownish, with a patch of blackish hairs on top; the gills are grey with paler edges. 

Resupinatus applicatus does not have the blackish hairs

Good close up photos of the fungus on its substrate, and of the cap and the gills

Bark and rotten wood

Rare; the Southwood specimens are believed to be only the 2nd record for the Vice-County

https://www.bioimages.org.uk/html/Resupinatus_trichotis.htm