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30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)
Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 16:56

Septoria on Impatiens glandulifera
Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?
Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 06:57

Pezizales --Pyronema?
Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE
ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

unknown discomycete from Brooklyn
Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Literature Request
Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Salvia leaf parasite
Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Pyrenomycetous fungi on old stalks of Chamaenerion
Åge Oterhals

I found this pyrenomycetous fungi in mountain area

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Unknown pyreno on wood
Maren Kamke, 19-03-2014 19:51
Maren KamkeHi everybody,
I need your help again.
I continue to find this species on decidious wood and old, thick rubus stems. It is very small with a size of 0,2 mm, becoming superficial, gregarious. Spores hyaline without septa, but I'm not sure if they become 3-septate with age, (19-23) 21,33 x 4,25 (4-5) µm. Asci 85-101x6-8 µm, IKl negative, biseriat with croziers.
Thanks
Maren
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Enrique Rubio, 19-03-2014 19:56
Enrique Rubio
Re : Unknown pyreno on wood

Hi Maren


I feel your fungus is close to Paradidymella clarkii

Gernot Friebes, 19-03-2014 20:04
Re : Unknown pyreno on wood
Hi Maren,

maybe a Chaetosphaeria?

Best wishes,
Gernot
Björn Wergen, 20-03-2014 12:17
Björn Wergen
Re : Unknown pyreno on wood
Hi Maren,

Gernot is right, this is maybe Chaetosphaeria. Compare it with C. cupulifera, which I have already found on different hosts, like Clematis.

Do the spores have a septation when getting older?

regards,
björn
Maren Kamke, 20-03-2014 20:29
Maren Kamke
Re : Unknown pyreno on wood
Yes, I think it is a Chaetosphaeria. Thank you for your comments.

Meanwhile the spores became 1-septate. I'll be watching the development. C. cupulifera fits the description of Ellis quite well. The conidial stage I can not comment. In addition to the key in Ellis I have only found the key of Réblova. Is there anything else?
Regards,
Maren

Björn Wergen, 21-03-2014 16:32
Björn Wergen
Re : Unknown pyreno on wood
Hi Maren,

I do not have anything else except the erection of the family Chaetosphaeriaceae a year before Réblovà has written her paper about the genus Chaetosphaeria. There is just a key to Chaetosphaeriaceae genera with some comments.

regards,
björn