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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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White disco on beech cupule
Steve Clements, 05-03-2018 20:35
Bonjour,
Cet disco était sur une cupule de hêtre. Il a des spores cloisonnées. Je n'ai aucune idée de ce que c'est.
These unidentified minute white discos were on a beech cupule. They were up to 0.7 mm diameter and sessile. The spores were up to 17 um long and at least 3-septate. There seemed to be hairs which appeared also to be septate but not clearly. The asci were approx 70 in length, tips blueing in iodine. Paraphyses were hair-like.
Cordialement,
Steve Clements
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Hans-Otto Baral, 05-03-2018 21:47
Hans-Otto Baral
Re : White disco on beech cupule
Did you find this lying in a wet place? I ask because of the conidium that might be something aquatic.

Without vital characters and excipular structure difficult to suggest a genus. 


Steve Clements, 05-03-2018 22:32
Re : White disco on beech cupule
Damp woods, lots of very rotted beech.
Hans-Otto Baral, 05-03-2018 22:45
Hans-Otto Baral
Re : White disco on beech cupule
Perhaps a Pseudohelotium?
Steve Clements, 06-03-2018 09:43
Re : White disco on beech cupule
Too small for me to do anything except a whole ascocarp squash. Many thanks as usual Zotto!
Nick Aplin, 06-03-2018 22:21
Re : White disco on beech cupule
Hi Steve,

It reminds me of this:
http://www.ascofrance.com/search_forum/27308

Cheers,
Nick

Hans-Otto Baral, 07-03-2018 07:29
Hans-Otto Baral
Re : White disco on beech cupule
Arachnopeziza nuda, great idea Nick!!
Steve Clements, 07-03-2018 09:43
Re : White disco on beech cupule
That looks OK! Many thanks again Zotto and Nick,
Steve