Trichopeziza on wood. Betula?

03-02-2020 12:52

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Hi I have not yet encountered such a species, gro

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Trichopeziza on wood. Betula?

Mirek Gryc, 03-02-2020 12:52

I have not yet encountered such a species, growing on the decayed wood of Betula.
Maybe someone is known?
Mirek

Hans-Otto Baral, 03-02-2020 13:00

Re : Trichopeziza on wood. Betula?

Hi Mirek

The spores would point to T. subsulphureum, but that species has usually yellow to brown lumps of exudate.

Lasiobelonium populi ined. could be a better choice. Is it possible to ascertain the wood? Did you see the bark, or can you do a radial section for checking the ladder-like pore connctions?

Zotto

Mirek Gryc, 03-02-2020 13:08

Re : Trichopeziza on wood. Betula?

Hi Zotto
Once again I looked at your disk and I also found L. pupuli.
The features seem to be compatible :)
Substrate I am sure. There was bark on the top of the trunk.
Thank you and best regards.
Mirek

Mirek Gryc, 03-02-2020 13:41

Re : Trichopeziza on wood. Betula?

However, I have uncertainty?
During the fall, the tree cracked into three pieces. They all lay in one row. The fattest was stripped of bark, so I photographed the upper one.
The bottom one, which can be seen in the picture, lying slightly to the side, I moved personally. I wanted to see his bottom page.

I do not suspect that someone was replacing wood ??
But, next to it was also Populus, only much thicker and older.
In my forest everything is possible, that's why I made cross-sectional and longitudinal sections.
Mirek

Mirek Gryc, 03-02-2020 13:42

Re : Trichopeziza on wood. Betula?

wood

Hans-Otto Baral, 03-02-2020 14:48

Re : Trichopeziza on wood. Betula?

Hmm, from your sections I am not sure. The best to clarify is a radial section in which the pores are hit. What your section shows is only the parenchym fibres. The pores are 3-4-times as wide, and here the connections are important, I attach two photos of Betula. Populus has much larger pits (looking like an eye, third photo).

Mirek Gryc, 03-02-2020 16:44

Re : Trichopeziza on wood. Betula?

Zotto.

You definitely overestimate my possibilities :)

Mirek

Hans-Otto Baral, 03-02-2020 16:59

Re : Trichopeziza on wood. Betula?

Yes! So it is clearly not Populus but very probably Betula (Alnus would be another choice, but I don't believe). I would be glad if you send me the collection data.

Mirek Gryc, 03-02-2020 18:58

Re : Trichopeziza on wood. Betula?

Alnus excluded! It doesn't occur here at all.
He is pleased to provide the collection details:
date of harvest: 2020.02.02
Substrate: Betula wood
location in photos:

thank you
Mirek

Hans-Otto Baral, 03-02-2020 21:59

Re : Trichopeziza on wood. Betula?

Thanks!

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