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.
Probably safer to stick with Ganoderma because of the similarity with other brackets (G. australe for instance). Even a photo of the underside may not aid definitive ID, its often a microscope job!
Certificate in Contemporary Science (Open)
The second photo with the shiny surface makes me think of G resinaceum.
thank you both for your comments, if it's still there next time I go, I'll have a better look at it and see if there are any other features that might aid identification. I couldn't find it in any of my books and used an internet site to try and id it.
Lat/Lng: 51.8348, 0.9679
OS grid ref: TM045192
Wildlife Trust reserve on Blackwater Estuary. Site was originally a sand and gravel quarry. Fungus found on remains of felled tree.