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25-05-2025 08:22

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) re

25-05-2025 13:25

Sylvie Le Goff

Bonjour, je suis bien embêtée avec ce genre si d

24-05-2025 22:34

Bruce Malloch

Hello all, I am new here, thanks for having me. I

25-05-2025 11:51

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, (España)  reco

25-05-2025 08:12

Sylvie Le Goff

Bonjour. Puis avoir votre aide pour confirmer ou i

24-05-2025 12:30

Karen Poulsen

Hello, I found this on straw in water at lake sho

24-05-2025 12:06

Karen Poulsen

Hello, I found these Coelomycetes among several

21-05-2025 17:28

éric ROMERO éric ROMERO

Bonjour Tous, Avec la bonne fiche cette fois (mer

23-05-2025 13:38

Andgelo Mombert Andgelo Mombert

Dear all, I'm looking for material from the USA of

23-05-2025 09:48

Josep Torres Josep Torres

Hello.A probable Diplodia located on a small Pista

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? Thyronectria sp.
Alex Akulov, 07-02-2023 14:52
Alex AkulovDear forum
Please help me with the identification of nectrioid fungus with muriform ascospores.

Perithecia are orange-red, cupulate when dry, grouped above the stromata of unknown sterile Pyrenomycete on the dead branches of Aesculus hyppocastanum. Yellow pigment is released after preparation in KOH. Paraphyses are absent, asci in a bundles. Asci 8-sporous, uniseriate, 129-138 ? (9,5) – 12,2 – 12,4,  with a short mostly absent stipes. Ascospores hyaline, muriform when mature, 15,6-23,5 x 5,8-7,6.

My guess is that this is something close to Thyronectria. Maybe you will have other ideas.

Grateful before,
Alex
  • message #75123
  • message #75123
Andgelo Mombert, 09-02-2023 14:43
Andgelo Mombert
Re : ? Thyronectria sp.
Dear Alex,

Yes I am also thinking of a Thyronectria. I don't see anything that matches. Possibly an undescribed species! You can send this to Hermann Voglmayr.

thank you for the info. it makes me want to look for it on the Aesculus at home.
Best wishes