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21-11-2025 11:52

Sepultaria arenicola
Jean-Luc Ranger

Bonjour à tous, on voit toujours 2 espèces areni

21-11-2025 10:56

Ascomycete on Humulus
Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

21-11-2025 10:50

Orange small asco?
Mirek Gryc

Hello Please help me identify this little asco.It

21-11-2025 10:47

Mollisia sp.
François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

29-06-2016 18:06

Encoelia
Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

14-11-2025 16:26

Small species on Cytisus scoparius
Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

17-11-2025 21:46

Lachnum impudicum
Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

20-11-2025 14:14

Unknow species on 'Juglans regia', possibly fusarium spec?
Mick Peerdeman

Found on the leaves of 'Juglans regia' in the Neth

20-11-2025 13:07

Possibly 'Ascochyta Malvae' on 'Malva sylvestris (cultivar)'?
Mick Peerdeman

In January i found these black markings on the dea

20-11-2025 12:38

Possibly 'Calonectria ilicicola' on 'ilex aquifolium'?
Mick Peerdeman

Dear all,Last week i stumbled upon a leaf of ilex

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unknown pyrenomycete
Irmgard Krisai-Greilhuber, 18-01-2025 01:04
Good evening, in an open oak forest in Burgenland we found this pyrenomycete on Quercus. The fruiting bodies are spherical, tiny (approx. 180 µm), black, not hairy, with a shortly protruding ostiolum. Asci iodine negative, paraphyses present, spores hyaline, with one septum, (4.9-)5.3-6(-6) x (2-)2.2-2.6(-2.8), Q= (2-)2.2-2.6(-2.7) (n=10). Any idea welcome.
Best,
Irmgard
  • message #81316
  • message #81316
Alain GARDIENNET, 19-01-2025 16:24
Alain GARDIENNET
Re : unknown pyrenomycete
Dear Irmgard, 
Asci are unitunicate, aren't they ?
Perhps you have to look at Chaetosphaeriales (like Chaetosphaeria myriocarpa ?). Anamorph would be expected.
Best wishes to you and Sydowia.
Alain

Irmgard Krisai-Greilhuber, 19-01-2025 16:44
Re : unknown pyrenomycete
Dear Alain,

looks promising. Thank you for your suggestion and best wishes, Irmgard