12-01-2026 22:02
Ethan CrensonHello all, I am hoping someone will have some ins
11-01-2026 20:35
Josep Torres
Hello.A very tiny pyrenomycete sprouting sparsely
13-01-2026 18:55
Rees CronceStrossmayeria sp. on indet. decroticate hardwoodTh
13-01-2026 07:57
Danny Newman
cf. Bombardia on indet. decorticate woodAppalachia
13-01-2026 10:13
Danny Newman
Cordieritidaceae sp. on indet. wood w/ Hypoxylon s
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
13-01-2026 07:14
Danny Newman
Neodasyscypha cerina on indet decorticate logThe S
13-01-2026 09:10
Danny Newman
Dasyscyphella chrysotexta on indet. decorticate ha
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
13-01-2026 08:49
Danny Newman
Coccomyces sp. on fallen Rhododendron leavesPretty
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