30-04-2024 16:22
François BartholomeeusenDear forum members,On April 25 2024, I found one f
01-05-2024 23:22
Ethan CrensonHi all, Found late last week in a New York City p
29-04-2024 21:32
Robin Isaksson
Hi! Found in Sweden. Ascomata with haris, se
01-05-2024 12:54
F. JAVIER BALDA JAUREGUIHello, everyone.An idea for this pyreno, I found u
30-04-2024 19:43
Gernot FriebesHi!We observed this hyphomycete growing between le
29-04-2024 21:51
Mathias Hass
Hi everyone, Found on attached branches of top pa
28-04-2024 18:05
Bernard CLESSE
Bonsoir à toutes et tous,J'ai trouvé ce matin ce
On hornbeam in the Caucasus (Georgia)
Alex Akulov,
30-05-2010 20:40
Dear friendsToday 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.
Alex Akulov,
30-05-2010 20:46
Re:On hornbeam in the Caucasus (Georgia)
more photo
Alex Akulov,
30-05-2010 20:47
Re:On hornbeam in the Caucasus (Georgia)
more photo
Alex Akulov,
30-05-2010 20:47
Re:On hornbeam in the Caucasus (Georgia)
more photo
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
Re:On hornbeam in the Caucasus (Georgia)
Hi, Alex,
I think that is an asexual state of Xylaria
Christian
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
Renée Lebeuf
Jacques Fournier,
30-05-2010 22:11
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
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
Re:On hornbeam in the Caucasus (Georgia)
Thank you all for your help!
Alex
Alex