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Spooren Marco
Collected from loamy soil, at waterside (completel
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Pascal DucosBonjour,Une anamorphe rose stipitée, très nombre
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Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous aider Albe
29-12-2025 10:15
Hulda Caroline HolteHello, I found and collected this propoloid ascom
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Josep Torres
Hello.A Pyrenomycete sprouting sparsely but very d
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Isabelle CharissouBonjour,J'aimerais savoir si d'autres personnes au
12-11-2021 00:03
Lepista ZacariasHi everybody,A week ago in my fiels trip I noticed
Unknown pyrenomycet
Gernot Friebes,
27-03-2010 12:57
I found this pyrenomycet on the bark of a branch of Picea abies which was lying on the ground. Conspicuous are first of all the two-layered ascomata with a thick, carbonaceous layer covering a thin, greyish perithecium.
The ascomata were smooth, black, tiny, superficial and opening by a small pore. The spores are smooth, 17-19.5 x 3,5-4 µm, three-septate, filled with many little oil drops when living, when dead there are fewer but bigger oil drops. The asci are 44-48 x 10-12 µm, 8-spored and unitunicate with a slightly refractive apical apparatus (see the arrows). Paraphyses are present and up to 1.5 µm wide.
I would be very thankful if you could help me.
Best wishes,
Gernot
Gernot Friebes,
27-03-2010 12:58
Re:Unknown pyrenomycet
sections:
Gernot Friebes,
27-03-2010 12:58
Re:Unknown pyrenomycet
micros (scale=10 µm):
Jacques Fournier,
27-03-2010 14:56
Re:Unknown pyrenomycet
Hi Gernot,
most likely a Chaetosphaeria. Is there any hyphomycete around? Otherwise it will be difficult to identify.
Chaetosphaeria pulviscula has similar spores and its anamorph is usually absent on natural substrate, it might be a possible match but I do not clearly recognize it in vertical section. Coniferous wood is likewise unusual for this taxon. Just check other species of Chaetosphaeria with such spores.
Cheers,
Jacques
most likely a Chaetosphaeria. Is there any hyphomycete around? Otherwise it will be difficult to identify.
Chaetosphaeria pulviscula has similar spores and its anamorph is usually absent on natural substrate, it might be a possible match but I do not clearly recognize it in vertical section. Coniferous wood is likewise unusual for this taxon. Just check other species of Chaetosphaeria with such spores.
Cheers,
Jacques
Gernot Friebes,
27-03-2010 17:03
Re:Unknown pyrenomycet
Hi Jacques,
I could not observe any hyphomycetes, unfortunately. Do you know any literature on that genus, maybe with a key? I only found the paper by Fernández et al. in the Mycologia but it doesn't actually help.
By the way, a moment ago I found Piotr's fungus which looks similar to my pyrenomycet: http://www.ascofrance.fr/index.php?r=forum&page=viewtopic&id=2176&highlight=Chaetosphaeria#msg2177
Maybe it's related to my fungus.
Best wishes and many thanks for your response!
Gernot
I could not observe any hyphomycetes, unfortunately. Do you know any literature on that genus, maybe with a key? I only found the paper by Fernández et al. in the Mycologia but it doesn't actually help.
By the way, a moment ago I found Piotr's fungus which looks similar to my pyrenomycet: http://www.ascofrance.fr/index.php?r=forum&page=viewtopic&id=2176&highlight=Chaetosphaeria#msg2177
Maybe it's related to my fungus.
Best wishes and many thanks for your response!
Gernot
Jacques Fournier,
27-03-2010 18:51
Re:Unknown pyrenomycet
the most useful paper I know is that of Réblova The genus Chaetosphaeria and its anamorphs 2000
Studies in Mycology 45: 149-168.
Sorry I don't have it as pdf, maybe someone else can help.
Jacques
Studies in Mycology 45: 149-168.
Sorry I don't have it as pdf, maybe someone else can help.
Jacques
Gernot Friebes,
27-03-2010 19:59
Re:Unknown pyrenomycet
thank you, one can find the paper on the internet:
http://www.cbs.knaw.nl/publications/1045/content/pdf/149-168.pdf
Best wishes,
Gernot
http://www.cbs.knaw.nl/publications/1045/content/pdf/149-168.pdf
Best wishes,
Gernot