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had a bit of time today so went to check out some sites for an important tour later!

 

:thumbup: . This is a trunk base and buttresses phenomenon I have never seen before, not even on the two very old oaks I monitor because of a known infection with I. dryadeus.

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:thumbup: . This is a trunk base and buttresses phenomenon I have never seen before, not even on the two very old oaks I monitor because of a known infection with I. dryadeus.

 

the first two are a very specific plate form, it is ONLY where grazing is combined with Dryadeus,

 

Not just Oak that evolves like this over here Gerrit.

 

remember this Ash Tony ?

 

 

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its partner in this form is the root decay pholiota squarosus

 

This is what I know as P. squarrosa specific root and rootplate decay in Fraxinus, but also in Platanus (photo) and Robinia, with as a common characteristic, that the biotrophic parasitic P. squarrosa almost always fruits for the first time when the root plate and/or the buttresses of the tree are in their end phase of decay and sometimes the tree and/or the fungus in this phase also panic reproduce as a warning sign. Also see : Album Pholiota squarrosa.

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This is what I know as P. squarrosa specific root and rootplate decay in Fraxinus, but also in Platanus (photo) and Robinia, with as a common characteristic, that the biotrophic parasitic P. squarrosa almost always fruits for the first time when the root plate and/or the buttresses of the tree are in their end phase of decay and sometimes the tree and/or the fungus in this phase also panic reproduce as a warning sign. Also see : Album Pholiota squarrosa.

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Pholiota squarosus is a root decay, but here in the u.k (maybe due to retrenchments via hispidus and pollarding traditions) Fraxinus here has perenniporia and pholiota squarosus as part of thier treespecies specific eco system.

 

They live long terms together, pollarding and hispidus = Man/fungi have helped many ancient fraxinus avoid the wind loadings that would have caused failures in the compromised root bases. the root plate adaptions are indications of compensatory growth and pace keeping. I have much work to do regarding cone optimisation, and believe ( a model to be made) that it takes very few advantigous reiterative roots to effectivley pin down the "cone" due to the force required to tip the traffic cone optomisations.

 

another work in progress, I believe retention of late ancient/veteren trees is possible. beech with meripilus adaptions, extreme modification to cone form and high vitality,resources. You will see this tree when we visit pfEIfferi

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1. Pholiota squarrosus is a root decay, but here in the u.k (maybe due to retrenchments via hispidus and pollarding traditions) Fraxinus here has perenniporia and pholiota squarrosus as part of thier treespecies specific eco system.

They live long terms together, pollarding and hispidus = Man/fungi have helped many ancient fraxinus avoid the wind loadings that would have caused failures in the compromised root bases. the root plate adaptions are indications of compensatory growth and pace keeping. I have much work to do regarding cone optimisation, and believe ( a model to be made) that it takes very few advantigous reiterative roots to effectivley pin down the "cone" due to the force required to tip the traffic cone optomisations.

2. another work in progress, I believe retention of late ancient/veteren trees is possible. beech with meripilus adaptions, extreme modification to cone form and high vitality resources.

 

1. Although less common, I've seen the same combination here too. And I have also seen the combination of P. squarrosa and P. fraxinea on Platanus and Robinia.

2. In The Netherlands, for the beech-Meripilus combination, the type of soil is very important. On sandy soils, this combination often is fatal for trees with a high wind load, as it often leads to windthrow after which the completely "torn off" root plate stands up vertically (photo).

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1. Although less common, I've seen the same combination here too. And I have also seen the combination of P. squarrosa and P. fraxinea on Platanus and Robinia.

2. In The Netherlands, for the beech-Meripilus combination, the type of soil is very important. On sandy soils, this combination often is fatal for trees with a high wind load, as it often leads to windthrow after which the completely "torn off" root plate stands up vertically (photo).

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In your photo of the upturned rootplate we see that it is the low cohesion and shear strength of the soil itself that has caused the failure, rather than decay (obviously all old trees lose the central roots) sandy soils are rubbish from a shear structural point of view when dry, the reverse can be said form loamy/clay soils which lose their shear strength when wet, wheras sand often consolidates and increases shear strength when wet, see sand castles!

 

depending on sand shape, rounded or sharp sands.

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Try tipping these two hypothetical trees (the model) and we will see the lower ones fine roots tear and rip due to a lack of flare or cone, but the upper tree, well thats where the dynamic gets interesting, for it requires LESS roots to pin and shear kill, I must do more work on this but this is my basic concept/theory.

 

shear failure of the main stem is more another issue in the upper scenario, but thats not what where talking here, were talking throw

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