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Tony Croft aka hamadryad

The Ganoderma thread!

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I know i am going to get stick for this one but due to several requests i thought i would deal with it in a thread of its own.


The most important thing is to get a good look at this document



ganodermas can be tricky little blighters to ID, but it doesnt take long to "get your eye in" and start working out ways to have the "best guess" at what they might most likely be. Without microscopic observation it is always going to be less than 100% acurate, certainly with regards to the two most difficult to distinguish from one another, Australe/applanatum which for the unkowing were adspersum and lipsiense respectivley.


Ive a few bits of info, some links etc to add as we go, all of which are what i have learned to date, ive been spending a lot of time getting this particular group of fungi sorted in my head!:confused1:


I know some of you will scream at me, some will think I am patronising others, some will say its a lesson unrequested. To all of them, get your own threads and leave mine alone, i never asked for your permission, and never will! some people are genuinely interested in what i have to say, though god knows why! so this is for those that asked:001_rolleyes:


may god have mercy on my soul and keep me from the arbtalk demons!


i can hear skyhuck screaming "release the hounds!":001_tt2:

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G. Adspersum/australe


G. applanatum on fagus sylvatica (burnham beeches)


G. Australe on Horse chestnut


note agressive penetration of barrier zoning (dark lines in decayed region) G. australe


G. applanatum, Saprotrophic on lightning strike wound of Fagus sylvatica


Edited by Tony Croft aka hamadryad

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The perennial fruit bodies of G. applanatum have often been confused with those of G. adspersum, but the following characteristics can help to differentiate these species. If the lower surface of the fruit body bears the galls from larvea/emerging fly Agathomyia wankowici, the fungus can be identified as G. applanatum, as it is the only European species of Ganoderma affected (BREITENBACH and KRÄNZLIN, 1986). (though currently there is some discussion on this points validity) I will update! however these examples (below) are clearly g applanatum.





In this image droplets can be seen oozing from ovipositing wounds by the fly, galls will then develope.


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a worthy thread to add this anecdotal observation to.


have been waiting for a while to come across two brackets sitting side by side like this.


Here on a dead (12 years) standing trunk of oak.


Bracket 1 (lhs)

Thin lipped (rim)

wide attachment to host

fragile top surface crust (easily cracked)


Bracket 2 (rhs)

Fatter lipped (rim)

more narrowly attached to host

hard top surface crust (hard/impossible to crack)
















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upon taking slices, it is clear how hard it is to determine which is which.



Slice one is from the lhs bracket

Slice two is from the rhs bracket


Both have near identical flesh colour & texture.

& both have similar length spore tubes.

& both have near identical pore shape.


The only perceptable difference is the presence of mycelium in the second slice

& the second slice having a stronger fungoid aroma.








Edited by Monkey-D

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