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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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Discomycet on Fraxinus excelsior.
Per Marstad, 19-12-2017 19:43
Per MarstadBlack and small; 0,25 mm.
Spores 14-18x5-6 my, with 3 septers.
Asci 55-70 x 7-9 my.
I will be glad to have a name on this.
Per
  • message #51680
  • message #51680
  • message #51680
  • message #51680
Martin Bemmann, 19-12-2017 19:53
Martin Bemmann
Re : Discomycet on Fraxinus excelsior.
Dear Per,

you have a serious dirt problem in your microscope. Your camera focuses on the dirt and not on the object...

Best regards
Martin
Hans-Otto Baral, 19-12-2017 20:36
Hans-Otto Baral
Re : Discomycet on Fraxinus excelsior.
For a name we need more data, and you should also use water as medium in case your fungus was recently collected.
The asci have an apical ring. Did you test it with iodine, preferably Lugol?
The excipulum would be important too, and the paraphyses and their exudate. 
Your macro is so small that one could easily confuse a collapsed pyrenomycete for a discomycete.