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25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

30-03-2026 09:53

Yanick BOULANGER

BonjourVoici des petites fructifications poilues s

28-03-2026 17:41

Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

27-03-2026 10:47

Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

28-03-2026 07:55

Marc Detollenaere Marc Detollenaere

Hello everybody,Yesterday I found a number of whit

26-03-2026 15:31

Ã…ke Widgren Ã…ke Widgren

Hello,I found this one in October last year, on r

27-03-2026 15:23

Gernot Friebes

Hi,this Trichopezizella deviates from typical T. b

27-03-2026 15:08

Gernot Friebes

Hi,I'm looking for help with this coelomycete on C

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

26-03-2026 12:50

David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

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Pyreno on deadwood
Christopher Engelhardt, 22-02-2017 22:05
Christopher EngelhardtHi.
Found on wet deadwood (Salix?), fruitbodies in a group and very small (<1mm), black, roundish and only with the lower part in the wood, mainly on top. No necks or similar seen. Asci 8spored, Spores with some big drops and numerous small drops, spore length 25-30 µ, IKI-. When dry you clearly see 5 septae in the spore.
Any IDea?
Thx & regards Chris
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Andrew N. Miller, 22-02-2017 22:09
Andrew N. Miller
Re : Pyreno on deadwood
A species of Chaetosphaeria, which one, I do not know.

Andy
Eduard Osieck, 22-02-2017 22:28
Re : Pyreno on deadwood
Hi Chris,

Quite a few species of Chaetosphaeria are well described, but often the accompanying anamorph is needed for reliable species identification. But may be you are lucky because the spores are fairly large and 5-septate. Publications by Réblová 2000 and 2004 include keys (see for full references  https://www.verspreidingsatlas.nl/0777030#, tabs "Artikelen" and "Standaardwerken").

Eduard
Christopher Engelhardt, 23-02-2017 09:15
Christopher Engelhardt
Re : Chaetosphaeria
Thanks Andy and Eduard.
Chaetosphaeria should be right. Unfortunately I didn't see the anamorph (perhaps I didn't expect anything like this and therefore overlooked it?). From the Ascus and Ascospores' length and septations, and from the general description the closest I get is Chaetosphaeria cupulifera. At least I don't see anything that would contradict it, except that Ellis&Ellis don't show oildrops in their spore drawing (but in my last pic there are also no oildrops to be seen).
Thanks & best wishes
Chris