oak tree fungi ident help

[wrekin tree care]

hi all got this on a mature oak it was on the buttress/root flare

 

many thanks

[Tony Croft aka hamadryad]

Bear in mind that this image offers very little but I will go with G. australe till better evidence issued.

 

Oak at least our native white oaks Q. Petraea and robur if healthy and vital appear to cope well with this and tend to cavitation despite the fact many species do not cope well with this one.

 

If this was a lime or horse chestnut it would be a bigger issue.

[wrekin tree care]

hi cheers tony this was on i tree i inspected which is going to be with 2m of a farm building/barn as oak deals with this well would you say it should be retained?