Tis the season to see Fungi, fa la la la la....

[sloth]

Please correct me if I'm wrong, but is the tree in question not an oak? Also, is it normal for armillaria to be present high in a trees crown? Not sure I've seen it up high before. Any idea what the little shroom is? Sorry to be a pain! Thanks

[Fungus]

1. is the tree in question not an oak?

2. Also, is it normal for armillaria to be present high in a trees crown? Not sure I've seen it up high before.

3. Any idea what the little shroom is?

 

Sloth,

1. As there was no tree species mentioned and because of the smooth bark of the trunk, I assumed it was a beech, but even if it is an oak, my above analysis of the cause of the limb failure still is valid.

2. Yes, quite normal in the situation of unstable limb joints of Fagus and Quercus robur/rubra, as is the case with this tree.

3. Armillaria mellea/ostoyae fruiting from the mycelium, that is white rotting the wood and partially covered with black melanin layers.

For the interaction of Armillaria and Quercus, see my Quercus robur & Armillaria ostoyae thread.

[Fungus]

This is an often happening limb failure in - from a "wood mechanical" viewpoint - unstable bi- or multifurcated beeches, caused by the mycelium of Armillaria species.

 

In beech, the same type of limb failure can be caused by the mycelium of Pholiota aurivella white rotting the dead wood of the unstable joint of two limbs (see photo).

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[David Humphries]

Quick blast round this morning to gather a group of specimens for a workshop I'm giving at work over the next couple of days.

 

 

.

[RobArb]

Must be the neatest desk ever:biggrin:

 

Whats the green book that just says "arboriculture" called and by (author)?

 

Sent from Rob's GalaxySII

[David Humphries]

Must be the neatest desk ever:biggrin:

 

Whats the green book that just says "arboriculture" called and by (author)?

 

Sent from Rob's GalaxySII

 

I managed to wipe off the majority of detritus & various different mycelium to make space for the fb's

 

 

 

tis 'Arboriculture' Integrated Management of Landscape Trees, shrubs & vines - Forth edition 2004

 

Harris, Clark & Matheny

 

 

.

[armybloke]

Carrying on the theme from my 6 year old daughter - these are her latest. She has enrolled on a digital camera course as an after-school club so I hope these pics will get better in time. Oh and that's her climbing 15m up a climbing wall at the weekend!!

[Fungus]

Carrying on the theme from my 6 year old daughter - these are her latest. She has enrolled on a digital camera course as an after-school club so I hope these pics will get better in time.

 

If she wants the species in her pictures identified, more information is needed on the habitat (tree species) and the macroscopical characteristics of the species, that are not visible in the photo's . Otherwise she'll get answers like there is a bolete in three of your pictures .

[sloth]

Sloth,

1. As there was no tree species mentioned and because of the smooth bark of the trunk, I assumed it was a beech, but even if it is an oak, my above analysis of the cause of the limb failure still is valid.

2. Yes, quite normal in the situation of unstable limb joints of Fagus and Quercus robur/rubra, as is the case with this tree.

3. Armillaria mellea/ostoyae fruiting from the mycelium, that is white rotting the wood and partially covered with black melanin layers.

For the interaction of Armillaria and Quercus, see my Quercus robur & Armillaria ostoyae thread.

 

Thank you. So I guess this is one instance where the honey gets a foothold with spores not rhizomorphs? Or would it have traveled such a distance up below the bark?

[Fungus]

So I guess this is one instance where the honey gets a foothold with spores not rhizomorphs?

 

with spores producing hyphae forming a mycelium inside rhizomorphs or underneath plaques covered with a layer of melanin.