Accès membres

Mot de passe perdu? S'inscrire

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

« < 1 2 3 4 5 > »
Trichopeziza on wood. Betula?
Mirek Gryc, 03-02-2020 12:52
Hi

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

  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
  • message #61293
Hans-Otto Baral, 03-02-2020 13:00
Hans-Otto Baral
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
  • message #61295
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

  • message #61297
  • message #61297
Mirek Gryc, 03-02-2020 13:42
Re : Trichopeziza on wood. Betula?
wood
  • message #61298
Hans-Otto Baral, 03-02-2020 14:48
Hans-Otto Baral
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).
  • message #61304
  • message #61304
  • message #61304
Mirek Gryc, 03-02-2020 16:44
Re : Trichopeziza on wood. Betula?
Zotto.

You definitely overestimate my possibilities :)

Mirek


  • message #61312
  • message #61312
  • message #61312
  • message #61312
  • message #61312
  • message #61312
  • message #61312
  • message #61312
Hans-Otto Baral, 03-02-2020 16:59
Hans-Otto Baral
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

  • message #61314
  • message #61314
Hans-Otto Baral, 03-02-2020 21:59
Hans-Otto Baral
Re : Trichopeziza on wood. Betula?
Thanks!