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15-01-2023 21:11

Enrique Rubio Enrique Rubio

Could someone please send me a copy of this articl

01-12-2022 12:46

Lothar Krieglsteiner Lothar Krieglsteiner

found on 8.7.2022, on the margin of National Park

14-01-2023 15:54

Joeri Belis

sp. 12 x 8

01-12-2022 13:54

Lothar Krieglsteiner Lothar Krieglsteiner

... found near Snasa, 3.7.22, on remains of Poacea

05-08-2022 13:22

Lothar Krieglsteiner Lothar Krieglsteiner

near Snasa, on mixed lawn with Nowellia curvifolia

08-01-2023 19:16

Robin Isaksson Robin Isaksson

Hi! Anyone know this anamorf found on malus?

12-01-2023 13:14

Patrice TANCHAUD

Bonjour, récolte réalisée sur le littoral, asc

12-01-2023 12:12

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2023 23:54

Marc Detollenaere Marc Detollenaere

Dear Forum,On dead branches of Salix sp, I found s

04-01-2023 14:28

Michel Hairaud Michel Hairaud

Bonjour, I have lately been given a puzzling coll

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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