Keizer's Fungi Q & A.

[RobArb]

 

Lycogala epidendrum - wolfs milk/toothpaste slime - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists

[David Humphries]

 

Lycogala epidendrum - wolfs milk/toothpaste slime - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists

 

 

 

 

Ta da

 

 

 

 

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[Fungus]

Lycogala epidendrum - wolfs milk/toothpaste slime

 

Rob,

In Dutch called Tree Wart or Naked Buttocks Fungus .

[David Humphries]

Rob,

In Dutch called Tree Wart or Naked Buttocks Fungus .

 

How do you say/write it in Dutch, Gerrit ?

 

 

 

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[Fungus]

How do you say/write it in Dutch

 

Boomwrat or Blote billetjeszwam.

[Fungus]

No need to send a sample to Kew, this is a (partially) sterile "tuber", i.e. the typical form of emergency reproduction of Daedalea quercina, as it is sometimes seen on Quercus robur, but more often is documented from Q. rubra. I'll attach one of my photo's of the phenomenon as an illustration.

 

Here's another (digitalised) photo of a (partially) sterile panic reproduction of Daedalea quercina, I found in my "classical" slide database.

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[Tony Croft aka hamadryad]

Gerrit, I keep finding the blackened desicate remains of a fungi under beeches, only beeches, and I want to work out what they are, they seem to preserve well in situ, are big enough to fit in the hand (palm) usualy and I will get some images of some today.

 

i know this isnt exactly an easy question but i am sure youll have some idea from my description they are gilled the gills seem to be stretched upright with the cap being dipped or depressed, they are charcoal black in this state.

 

I find them on a regular basis, always under beeches

[David Humphries]

Hello Gerrit,

 

I would like to read your thoughts on the linked list of ecto & endomycorrhizal tree species specific mycorrhiza sp.

 

The list is from the Northern Ireland Fungus Group.

 

Ectomycorrhizal Fungi

 

Not trying to catch anyone out, just trying to build my own knowledge & understanding of the specific relationships to aid my own decision making on Identification.

 

When I see two resources stating different things (e.g Prunus sp on the NIFG list as ecto & vasicular-arbuscular and then see your list as placing Prunus as being specifically Endo associated) it leaves me confused & little frustrated that I'm not really able to tick that box without understanding how these findings are brought about.

 

Look forward to hearing back, on what is a relatively new & facinating aspect of myco rersearch for me.

 

Thanks

 

David

 

 

 

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[Fungus]

I would like to read your thoughts on the linked list of ecto & endomycorrhizal tree species specific mycorrhiza sp. The list is from the Northern Ireland Fungus Group. Ectomycorrhizal Fungi. When I see two resources stating different things (e.g Prunus sp on the NIFG list as ecto & vasicular-arbuscular and then see your list as placing Prunus as being specifically Endo associated) it leaves me confused & little frustrated that I'm not really able to tick that box without understanding how these findings are brought about.

 

1. Concerning Acer, Fraxinus, Ilex, Juglans, Robinia, Malus, Juniperus, Sambucus and Sorbus being listed as ectomycorrhizal too, an answer to the following question should be given : what validated evidence is documented from both in situ and in vitro research on both the ectomycorrhizal structures surrounding the roots and the fruiting of the ectomycorrhizal macrofungi concerned and what species of ectomycorrhizal macrofungi have been linked to what tree species ?

2. Just as there is still debate on whether only a few Entoloma species such as E. clypeatum, E. aprile and E. saundersii are ectomycorrhizal species associated with Crataegus and Ulmus, the same goes for Prunus (and Crataegus) being associated with E. sepium. In my opinion and based on my own research on E. saundersii and Ulmus, I think it's highly improbable, because the energy consuming fruiting of the quite big FB's of these Entoloma's takes place in spring, i.e. at the same time as the tree develops its leaves and buds for blossoming for which a lot of sugars are needed, i.e. energy which the tree can not afford to share with the symbiont this time of year.

3. To the list of trees being both endo- and ectomycorrhizal "at different stages" such as Salix, Alnus and Populus, Betula should also be added, because the seedlings of all four pioneer tree species (mostly) depend on generalistic endomycorrhizal microfungi, followed by more or less tree species specific ectomycorrhizal macrofungi in the later phases of the tree species specific life cycles.

4. Concerning the Swedish research by Lena Jonsson about "seedlings regenerating in the forest" forming mycorrhizae with "whatever fungi there are in the area" and "late stage" ectomycorrhizae "colonizing saplings in healthy mixed aged forest", this can only be valid, if one implies, that the mycelia of the "late stage" ectomycorrhizal macrofungi are for the greater part connected to and for their sugars totally dependend on the roots of trees, which are in later phases of their life cycles, because fruiting of the ectomycorrhizal macrofungi with energy absorbing FB's from the roots of the seedlings alone would immediately kill the young tree. And she does not take the differences between tree species specific reproduction and regeneration strategies into account, with trees with big seeds with 2-5 years energy reserve at one side, and trees with small wind transported seeds at the other.

[David Humphries]

Blimey, a simple yes or no would have suficed

 

 

Just kidding, I'll take that all in when I've got the mental vigour to digest it and save it to the chemical side of me brains memory banks.

 

Thanks for the reply :thumbup1

 

 

 

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