Bracket on Oak stump?

[Gerel]

Hi,

could use some help with this bracket found today on the stump of a dead oak.

It was approximately 200mm across by 20 - 30mm thick. Strong "mushroom" smell, reminded me of the smell of giant puffball.



The top surface was somewhat glossy but dry, not at all slimy and formed a definite tough skin over the flesh. The flesh was off-white to brown (I suspect it may have darkened with age) 10 - 20mm thick and leathery rather than corky.



The tubes were dark brown and 5 - 10mm long.

The pores were whitish turning dark brown with handling, rounded and fairly small >0.5mm across.



Margin was distinctive, almost egg-yolk yellow.

As you can see from the first shot, there was no real sign of spores beneath it. I have taken a small piece and am trying for a print. From what has developed so far I think it will prove to have brown spores.

My best guess is a Ganoderma of some description but would appreciate suggestions.

Regards

Steve

[NickCantle]

Is there a possibility that it's Ganoderma resinaceum?

[Gerel]

Originally Posted by NickCantle

Is there a possibility that it's Ganoderma resinaceum?

That's sort of what I'm hoping.

I suspect it may be an annual by the way, it certainly wasn't there last year and I got the impression that its already past its best, it felt a bit flabby.

Steve

[Gerel]

The resouces I've got and internet searches suggest that G. resinaceum is a rare species. Is it still thought of as rare, and if so would it be worth sending a sample away for confirmation?

Steve

[flaxton]

Steve
Ganoderma australe and applanatum have very solid upper surfaces G lucidium and G resinaceum have a relatively thin "crust" which can be dented easily with a thumb nail. I would agree with Nick that this is what you have.

Mal