Fungi ident on a english oak

[Wood-be]

Hello,

 

I am having difficulties finding an exact match on these following pictures of a bracket fungus. I need to be pretty certain what it is. If my hunch of Ganoderma Resinaceum is correct then the 70ft oak will need to come down in stages to 50% its size as there is a war memorial, road, benches, power cables, bt lines and a footpath underneath it. the village wants to keep the tree if they can even if it is half the size and hollow!

 

Please can anyone shed light on this.

 

The first picture shows an over extended lower limb (about 10ft off the ground) which has snapped and you can just make out the white rot at the top of the crack. which leads me to believe the rot has spread quite a way up the truck already.

 

Thanks for any advice in advance.

[Steve Bullman]

If anything that looks more like a brown rot to me?

[Wood-be]

7 minutes ago, Steve Bullman said:

If anything that looks more like a brown rot to me?

It has more than likley got both as the heartwood looks like its got brown rot but the stuff found on the floor under it suggested white rot to me. hence my thinkings are ganoderma resinaceum.

[David Humphries]

I think the first bracket is Heterobasidion annosum.

 

The second bracket looks to be a species of Ganoderma. 

Was it hard or soft?

 

 

 

 

 

 

 

[Wood-be]

I thought Heterobasidion annosum was found in conifers? The second one was stiff to the touch not rock hard like the applanatum or the pfeifferi it is quite thin tho.

[Wood-be]

Got some better photos as i have had a bit longer to look at the fungus. The second one i cut a lower bit off which was much more supple than the one above so my thinking of resinacium is wrong i think. The first one does look like Heterobasidion annosum but i have never seen it in an oak before. First time for everything.

[David Humphries]

Heterobasidion grows predominantly on conifer but also found on broadleaf trees. We have it on beech.

 

the other bracket is not Ganoderma as yours has white spore and not brown like the Gano's.

 

likely to be Perenniporia fraxinea or Rigidoporous ulmarius.

both can be found hosting on oak.

 

i would lean toward Perenniporia fraxinea.

 

good effort taking the slice.

[Wood-be]

Thanks for that david its starting to make more sence the more i refresh the brain cells with all of this. Either way i recon the rot is quite advanced in this oak as it has taken a good 50% of the heatwood out of the broken limb. Thanks again for the help.