A brown crust on Oak, covering a large area on a dead branch. It has a white rim and is oozing yellow-brown drops.
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No interactions present.
If this bruised red Stereum gausapatum Oak only S rugosum any Deciduous. if no bruising S hirsutum.
I have added two photos. It bleeds red from cuts, very similar to the drops it is oozing anyway. At one edge it was almost making a bracket, so I turned that over and photographed the underside - which would be the top surface of an actual bracket. I don;t think it looks like S. hirsutum.
I am not sure that shows any reddening but as it seems to be bleeding and is on oak Stereum gausapatum is the best candidate.
Lat/Lng: 51.3704, 0.0147
OS grid ref: TQ403654