Bracket on Holm oak

[jacquemontii]

This bracket was found on a mature multi-stemmed Holm Oak. I suspect it is Ganoderma, but does anyone recognize which type based on these photos?

Another question relates to the significance of the host species, does anyone know how the resistance to decay of Holm oak compares with say pendunclate oak? Is it similar in terms of relatively slow rates of decay and compartmentalization?

This particular tree appears to have already had some light crown reduction work in the past (although it was difficult to spot through the dense evergreen canopy), presumably in response to the presence of the bracket.

[David Humphries]

I'd concur with Ganoderma sp

 

If I was to guess, I'd go with applanatum as opposed to australe. Based on perceived morphological features.

But spore is really required to determine the difference between the two.

 

Have a look at the Schwartze and Ferner paper entitled Ganoderma on trees - Differentiation of species and studies of invasiveness.

 

Lots of interesting dialogue on decay strategies of the main Ganoderma species

 

 

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[jacquemontii]

Thanks David, I will look that up.