Knobbly black fungi found on fallen branch...possibly oak.
Matt surface and hard to the touch...about the size of golf-balls.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Also known as 'Cramp Balls'. If cut in half it should reveal concentric dark & silver/grey rings.
As I could not find a picture showing this feature on iSpot I've added one from my archive to illustrate western vole's point.
Thanks for the showing me this David.
Lat/Lng: 51.1362, -2.4768
OS grid ref: ST667375
Found on the edge of a small deciduous wood near Milton Clevedon.