Can anyone help with this one?

Can anyone help with this one?

Observation - Can anyone help with this one? - UK and Ireland. Description: Very sticky cap, off-centre stem, orangey-brown spore print, found on sycamore right next to a river, wavy gills of differing lengths

Very sticky cap, off-centre stem, orangey-brown spore print, found on sycamore right next to a river, wavy gills of differing lengths