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Posted

Hi

 

found this inside a willow that we took down today. was very rotten and hollow in the middle. there were some cavities as well and there were slugs inside, were they what did this? it also had honey fungus boot laces, but i dont think this had ote to do with it?

 

cheers

 

Gary

DSC00436.jpg.e854809f73974e63dce6c4afa2f6cfff.jpg

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Posted

A food cache a bird or animal forgot about maybe? I found a Birch cavity full of mush the other day and it was the dreaded HF, so your bootlace theory may not hold water - well not as much as that mush did anyway!! :lol::lol:

Posted
found this inside a willow that we took down today. was very rotten and hollow in the middle. there were some cavities as well ... it also had honey fungus boot laces

 

Gary,

Are you sure it was an Armillaria rhizomorph ? IMO it could just as well be secundary roots formed by the tree itself penetrating and "tapping" the rotten wood, a phenomenon which often is found in hollow or pollarded willows.

Posted (edited)
Armillaria ... there were some roots that penetrated the rot ... one of them was 8 in in diameter!

 

For the differences between Armillaria rhizomorphs and secundary roots, see my album : Rhizomorphs Armillaria.

And this diameter secundary roots even makes colonizing and fruiting from the roots by ectomycorrhizal symbionts like Russula olivaceoviolascens possible, as is documented in the photo of three fruitbodies growing at 2 metres height on top of a pollarded willow.

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Edited by Fungus
Posted

Gary there is an earthworm in the middle of that image...could this be some new form of highly evolved hyphae which has become tired of its diet of nematodes ???

Dave

Posted

fungus - defo Armillaria, would it be possible for the roots to from a second stem inside the original if there were enough of them?

 

dave - it went through the chipper with the rest of the rotten stuff in the stump so no one will ever know :001_tongue:

Posted
would it be possible for the roots to form a second stem inside the original if there were enough of them?

 

No, the roots grow "backwards" from the cambium and provide the branches growing on the outside or on top of the (pollarded) tree with moisture and nutrients from the decayed wood.

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