Accès membres

Mot de passe perdu? S'inscrire

01-02-2023 10:30

Lothar Krieglsteiner Lothar Krieglsteiner

... on old herbaceous stem (likely Tropaeolum maju

01-02-2023 09:30

Lothar Krieglsteiner Lothar Krieglsteiner

.. 29.1.23 near Carrapateira (W-Coast of Algarve),

31-01-2023 17:07

Marja Pennanen

Hello folks, I have found these brown ones (~1cmx

31-01-2023 19:58

Nogueira Héctor

Hello!25/01/2023 Argañoso(León) SPAIN  Specime

29-01-2023 18:19

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous confirmer

28-01-2023 23:39

William Slosse William Slosse

Good evening everyone,I recently bred an Ascobolus

28-01-2023 22:17

Josep Torres Josep Torres

Hola.Unos pequeños apotecios de color amarillo y

28-01-2023 12:27

Juuso Äikäs

These were growing on a piece of thick Salix capre

27-01-2023 23:08

Patrice TANCHAUD

Bonsoir, récolte réalisée sur excréments ou p

27-01-2023 14:41

Juuso Äikäs

A couple days ago I found a plentiful growth of th

« < 212 213 214 215 216 > »
? 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