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29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

29-12-2025 17:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

12-11-2021 00:03

Lepista Zacarias

Hi everybody,A week ago in my fiels trip I noticed

29-12-2025 17:01

Gernot Friebes

Hi,I'm looking for help with this hyphomycete with

29-12-2025 08:30

Josep Torres Josep Torres

Hello.A tiny ascomycete sprouting under Juniperus

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

29-12-2025 09:38

Oskari Virtanen

Hi,could anyone help me identify this, I suspect P

24-12-2025 18:12

Ethan Crenson

Hello all, A friend found this Orbilia growing on

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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.