The fungus had broken away from the tree with the underside uppermost. After the heavy rain it was very wet. 2 views of different parts of the underside are shown.
No identification made yet.
No interactions present.
If possible could you show a bit more general context, i.e. the whole fungus and the upper side as well. Hopefully should be able to ID this as it has large pores (as shown by coin) but rather unsure as to why its so uneven underneath.
There are other pictures of the fungus here:
together with comments suggesting Dryad's Saddle (Polyporus squamosus).
Possibly uneven nature to underside is due to age and very heavy rain in last week or so.
Ah yes this all figures now, the large pores and the overall shape, pretty sure it is Dryad's Saddle (Polyporus squamosus)
Lat/Lng: 51.9, -2.1
OS grid ref: SO9728