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Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

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Dear Forum,On naked wood of Fagus, I found some ha

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Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia,  recolectad

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Hello,Does somebody could send me a key for Olla/U

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Alain GARDIENNET Alain GARDIENNET

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Castillo Joseba Castillo Joseba

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Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

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On hornbeam in the Caucasus (Georgia)
Alex Akulov, 30-05-2010 20:40
Alex AkulovDear friends
Today my colleagues from Russia have sent photos of a mysterious fungus found on the branches of hornbeam in the Caucasus. Photos put me in a deadlock state. My first thought was that it was representative of the Basidiomycota (Ramaria, Clavulina…), but spores are pushing the idea that it is representative of the Anamorphic Ascomycota (Clavicepitales, Xylariales, ???).
Please tell your assumptions, whatever it might be.

Thank you before,
Alex.
  • message #11702
Alex Akulov, 30-05-2010 20:46
Alex Akulov
Re:On hornbeam in the Caucasus (Georgia)
more photo
  • message #11703
Alex Akulov, 30-05-2010 20:47
Alex Akulov
Re:On hornbeam in the Caucasus (Georgia)
more photo
  • message #11704
Alex Akulov, 30-05-2010 20:47
Alex Akulov
Re:On hornbeam in the Caucasus (Georgia)
more photo
  • message #11705
Jacky Launoy, 30-05-2010 21:03
Re:On hornbeam in the Caucasus (Georgia)
It seems to be Paecilomyces farinosus (Holm ex Gray) Brown & Smith
Christian Lechat, 30-05-2010 21:08
Christian Lechat
Re:On hornbeam in the Caucasus (Georgia)
Hi, Alex,
I think that is an asexual state of Xylaria

Christian
Renée Lebeuf, 30-05-2010 22:06
Re:On hornbeam in the Caucasus (Georgia)
This looks to me like Xylocoremium flabelliforme (Schw.: Fr.) J.D. Rogers. The description I have says it is the asexual reproductive stage of Xylaria cubensis. It was found last year in Quebec.

Renée Lebeuf
Jacques Fournier, 30-05-2010 22:11
Jacques Fournier
Re:On hornbeam in the Caucasus (Georgia)
Hi Alex,
indeed it looks like a Xylocoremium state of a Xylaria of the X. cubensis group. Typically, the conidiophores are arranged in tight palisades anf yield ellipsoid conidia 4-6 x 2-3 µm, unlike the globose conidia on the photo. You should make a squash mount of a piece of a branch in a drop of KOH to see the conidiophores.
Tell your colleagues to keep an eye on branches in the collection site, the teleomorph occurs separately from the anamorph, some weeks later.
Otherwise I have no idea.
Cheers,
Jacques
Alex Akulov, 30-05-2010 22:37
Alex Akulov
Re:On hornbeam in the Caucasus (Georgia)
Thank you all for your help!

Alex