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17-05-2022 15:28

Derek Schafer

Kerry Robinson found this stalkless brown discomyc

23-05-2022 15:32

Riet van Oosten Riet van Oosten

Hello, Found 22-05-2022 on fresh leaves of Typha

22-05-2022 12:57

Andrés Valverde Valera Andrés Valverde Valera

Bonjour,Je vous envoie des images de cet ascomycè

22-05-2022 11:39

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia,  recolecta

21-05-2022 12:35

Enrique Rubio Enrique Rubio

Dear friendsDo any of you have this article?Monogr

19-05-2022 22:05

Marcus Yeo

Earlier today I found a minute discomycete growing

20-05-2022 17:43

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte attenante d'Ulmus mino

06-05-2022 14:38

Laurent Bonneau Laurent Bonneau

Bonjour, j'ai trouvé ces Scutellinia dans le sud

18-05-2022 15:25

Andgelo Mombert Andgelo Mombert

Bonjour, Une récolte d'août dernier, sur tiges

17-05-2022 16:33

jean claude chasle

Bonjour,Apothécie crème, blanche poilue courteme

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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