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05-04-2026 22:46

blue mould from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Unknown helotiales on Abies bark
Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

03-04-2026 17:11

Schizoxylon?
Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Lambertella tetrica paper
Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

"Nectria" - for a lack of better knowledge...
Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ãke Widgren Åke Widgren

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

31-03-2026 16:20

Helotiales from Tanzania
Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Daldinia childiae parasité
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Demande d'aide
Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

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Unknown fungus on Quercus stick.
Guy Buddy, 02-05-2019 15:07
Ver long, slender asci, inamyloid. Spore measure ~11.3 × 4.3 µm. Slender sinuous paraphyses. Thanks!
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Jacques Fournier, 03-05-2019 15:08
Jacques Fournier
Re : Unknown fungus on Quercus stick.
Hi,
asci and ascospores remind me of Lopadostoma, though the apical ring should be amyloid. But in this genus it is small and easily overlooked.
I wonder if the black pustules are single ascomata or represent several ascomata surrounded by a stroma. A close-up on a horizontal or better a vertical section would answer this question.
Are you related to Buddy Guy?
Cheers,
Jacques
Guy Buddy, 03-05-2019 16:14
Re : Unknown fungus on Quercus stick.
Thanks Jacques.  Unfortunately this sample got ignored and I did not spend a lot of time on it.  I added a photo of the asci in melzers.  I dont see any reaction.  Picture three is the ascoma cut open, it appears to be one large perithecia, not loculated. The spores do look good for Lopadostoma, but i dont see any species that are not loculated.  Maybe Barrmaelia?
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Guy Buddy, 03-05-2019 17:56
Re : Unknown fungus on Quercus stick.
section
Jacques Fournier, 03-05-2019 18:26
Jacques Fournier
Re : Unknown fungus on Quercus stick.
this is much helpful.

There is a layer of some orange brown tissue around the perithecium. If a chip of stroma added to a drop of 5*10 % KOH releases an orange pigment, we are likely dealing with Creosphaeria sassafras, a Xylariaceae which is not uncommon in North America.

Jacques
Guy Buddy, 03-05-2019 20:57
Re : Unknown fungus on Quercus stick.
Thats definitely it! Thanks for your help!
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