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25-08-2025 17:37

Petit asco indéterminé
François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

24-08-2025 21:30

Orbilia dryadum ?
Ethan Crenson

Found yesterday in a New Jersey park.  An Orbilia

24-08-2025 21:59

Podospora
Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

21-08-2025 18:09

Semble Thecotheus
Edmond POINTE Edmond POINTE

Bonjour Amis mycologues.Trouvé sur crottin de che

22-08-2025 18:10

Protocrea ?
Ethan Crenson

Hello everyone,  I found what I think might be P

20-08-2025 19:04

Adelphella babingtonii - lacking much brown pigment
Ethan Crenson

Hello, This asco was found on the same wood as my

22-08-2025 08:41

Literature request
Masanori Kutsuna

Hello.Can anyone help me to get this article?Liu H

21-08-2025 02:18

Helicoma muelleri?
Stefan Jakobsson

On a necrotic section of a living Tilia cordata I

18-08-2025 23:15

S.vitreola?
Zoe Vélez Zoe Vélez

Hola foro, gracias por aceptar la creación de mi

19-08-2025 20:58

Hymenoscyphus ? on very wet wood
Ethan Crenson

Hi all, Here is what I believe to be a Hymenoscyp

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yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
Thomas Læssøe, 26-08-2016 14:21
± verticillate, conidia ca. 5 x 2 µm.
A very common parasite on the site. A Neonectria?

cheers

Thomas
  • message #44594
  • message #44594
  • message #44594
Jacques Fournier, 26-08-2016 14:37
Jacques Fournier
Re : yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
Hi Thomas,
I may have an answer to your question.
The greenish yellow coating is made of an acremonium-like hyphomycete, the anamorph of an undescribed Cosmospora which seems to be specific for X. polymorpha. The teleomorph is fairly easy to obtain after incubation in moist chamber. I attach a photo of the red perithecia with scattered tufts of the remaining anamorph.
Cheers,

Jacques
  • message #44596
Thomas Læssøe, 26-08-2016 15:03
Re : yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
thanks, Jacques. Seems to be the usual species, the undescribed one :-)

cheers

Thomas
Thomas Læssøe, 02-12-2020 20:36
Re : yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
still undescribed?


cheers
Jacques Fournier, 02-12-2020 21:26
Jacques Fournier
Re : yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
yes Thomas, we are getting lazy...but it is planned, one day but not this year.

Best,

Jacques
Thomas Læssøe, 03-12-2020 11:32
Re : yellowish hypho covering stromata of Xylaria polymorpha - Denmark, autumn 2015
you lazy - never! :-)