Accès membres

Mot de passe perdu? S'inscrire

24-12-2025 17:08

Propolis sp. on Picea abies
Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

23-12-2025 11:27

blanc poilu
Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Small resin asco?
Mirek Gryc

Hi. „I doubt it is possible to identify this ti

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

22-12-2025 23:38

Phylloscypha labessiana ?
Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

22-12-2025 00:47

Phylloscypha boltonii
Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

« < 1 2 3 4 5 > »
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
  • message #28309
  • message #28309
  • message #28309
  • message #28309
  • message #28309
  • message #28309
  • message #28309
  • message #28309
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