Ash with gano?

Thoughts anyone?

Would of thought either G. applanatum (lipsiense) or G. australe (adspersum)

No mycelium in the tubes seems to lean it toward australe

Is the tree still alive & functioning Peter?

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Very much so, nice full canopy, bit of a lean towards a neighbour and possible root damage due to regrading of lawn though.

Would be a concern either way as both will possibly result in cavitation at some point.

Came across an ash with G. resinaceum whilst surveying earlier in the week (don't recall coming across that before) which may be of greater concern on ash than either applanatum or australe with this host.

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Peter's pic shows ffb in sinus, but not on buttress. It's worth looking to see if the tree is showing signs of walling off against the spread and buttress remains solid.

I would go with Lipsiense given the form, no mycelium in hymenium as only one layer thus far, check back next season, though I am not convinced its a reliable feature at the moment. It SHOULD be though as I think its this that makes the lipsiense the ideal fruitbody for the flat foot fly

Are you after an ident or a steer as to recommendations?

Looks like a fungus to me. Fell it and stock up on firewood.

Both really, tree is tpo'd and client is keen to retain as long as possible however there are some high risk targets.

If you want recommendations its a hell of a lot easier for us when we have the full picture, I.e context, crown form/condition, rpa issues etc

I noticed there is a bark depression at the fungal site, indicating the death or dysfunction of a portion of the root system.

Crown is healthy, tree is in a lawn in a back garden. Slight lean toward neighbours property.

Client has only been in property a few weeks. I suspect the lawn installation involved lowering the soil level around the tree and caused root damage.

Bark sounds a bit flaky around the brackets but looks healthy everywhere else.