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04-04-2025 11:56

Edvin Johannesen Edvin Johannesen

These 0.2-0,4 mm diam. flat to slightly convex, gr

03-04-2025 15:33

Tomaz Vucko Tomaz Vucko

Hello! I found an interesting dothideomycete in a

03-04-2025 21:31

Francois Guay Francois Guay

Hi, I found this interesting ascomycete on incuba

03-04-2025 12:44

Castillo Joseba Castillo Joseba

Me mandan en matgerial seco de Galicia (España),Â

03-04-2025 18:26

Lennert Gees

Hello there!I found this species on dung of an unk

03-04-2025 16:45

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España), 

01-04-2025 23:18

Yanick BOULANGER

BonsoirRécolté par un ami sur dans un tas de bra

29-03-2025 09:08

Martine  Vandeplanque Martine Vandeplanque

Bonjour.J’ai essayé d’étudier un Daldinia.Qu

30-03-2025 10:24

Gonzalez Garcia Marta

Good morning, I would like to know the opinion of

01-04-2025 10:35

Yanick BOULANGER

BonjourSur bois très pourriApothécie 0,2 - 0,5 m

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Pyronemataceae but which Genus?
Pauline. Penna, 25-11-2023 15:37
These 3mm yellow turbinate discs were found on top of a very rotten stump, in compost not on the wood, which  maybe coniferous. Upper surface smooth, soft tissue, underside whiteish, powdery.

Asci J-ve operculate 260 x 15 microns, eight spored. Spores 13-17 x 8-9 microns, thick walled, smooth with granular content. Paraphyses not branching, some with curved and swollen tips, greenish in MLZ.

Keying it out I get to Otidea or Octospora. Help please, it does not seem to fit in these genera
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  • message #77498
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Viktorie Halasu, 25-11-2023 22:11
Viktorie Halasu
Re : Pyronemataceae but which Genus?
Hello, 

somehow it reminds me on Pseudoboubovia benkertii, but I have never seen it myself.

Best wishes,
Viktorie 
Nicolas VAN VOOREN, 26-11-2023 09:41
Nicolas VAN VOOREN
Re : Pyronemataceae but which Genus?
Yes, it seems the correct ID
Pauline. Penna, 26-11-2023 13:08
Re : Pyronemataceae but which Genus?
Thanks so  much Viktorie and Nicolas. I have just looked at Paul Cannons site on Fungi of Great Britain and Ireland and it confirms your suggestion. So  it was in Pezizales after all.
Many thanks
Pauline
Charles Aron, 26-11-2023 15:57
Charles Aron
Re : Pyronemataceae but which Genus?
Hi Pauline, 

Yes, this is the species that I had by my Cupressus hedge (see the Feb. 2023 edition of Field Mycology). I assume that the ascospores were full of guttules, not easy to see in your photos. In my specimens the paraphyses were partially obscured by an amorphous matter. Interesting that this asco has turned up in another oceanic location in the UK. 

Best wishes, 

Charles.
Pauline. Penna, 26-11-2023 18:09
Re : Pyronemataceae but which Genus?
Hello Charles I will have to look at FM to see your report.. The spores in the asci were full of guttules. I was concerned because I thought the paraphyses were greenish in MLZ. It looks a very good match in all other respects. When was it first described, it  is not in any of my books?
What a great resource Ascofrance is, I think I would have been struggling on for sometime.
Best wishes Pauline
Charles Aron, 26-11-2023 18:24
Charles Aron
Re : Pyronemataceae but which Genus?
Hi Pauline, 

Yes, I got the ID through AscoFrance-very helpful. There's loads of info on it online and there's also some background info re taxonomy in my article. It has been quite frequent by my Cupressus hedge under the clippings. Wonder if it's there now?!

Charles.