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03-02-2026 20:44

Zetti Mario

When I first saw this white mould on an Agaricus s

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

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Hyalopeziza from French Alps
Lothar Krieglsteiner, 01-08-2024 15:00
Lothar Krieglsteinerfound on 26.7.2024 on Amelanchier ovalis-twig in alpine site (not far from Glacier). Macroscopically, it resembles H. alni a bit (Alnus alnobetula was not far). I found this on ascofrance: http://ascofrance.fr/search_forum/70054
This could perhaps be my species (?)
Unfortunately, the specimen was not fully ripe and I was not able to get spores outside the asci. The measures of about 9-12/3-3,5  can thus not taken fully serous. The asci have croziers and are IKI-negative. The thick-walled hairs are long and mostly unseptate.
Who has a contribution?
Best regards, Lothar
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Hans-Otto Baral, 01-08-2024 15:42
Hans-Otto Baral
Re : Hyalopeziza from French Alps
Hallo Lothar

How long and broad are the hairs? Did you take an oil immersion photo of the lower hair part?

It is strange but the species on Salix lacks croziers (besides Andgelo's find there is another by Elisabeth in my folder "alni aff. Salix twigs H+, IKI- 7.5-15 x 2.5-3.8"). 

You have any photo of the croziers?

Zotto
Lothar Krieglsteiner, 01-08-2024 15:51
Lothar Krieglsteiner
Re : Hyalopeziza from French Alps
Hello Zotto,
thanks for your comment.
No, I have no foto of the croziers. I will try to re-examine soon to get a foto.
I add fotos of lower parts of the hairs (1000x).
I did not measure the hair width, but I will do this soon with the scale and write again.
Best regards, Lothar

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  • message #79830
  • message #79830
Lothar Krieglsteiner, 01-08-2024 16:17
Lothar Krieglsteiner
Re : Hyalopeziza from French Alps
from my fotos I find the hairs to be (roughly) up to 240-270 µm long (longer ones) and in basal parts about 4-4,7 µm broad.