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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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Possible Peziza polaripapulata
John Leach, 28-05-2015 19:45

Hi all


I recently found this Ascomycete in Anston Stones Wood growing on the underside of a very wet 'rotting' Fraxinus log.
The Spores measured 17 x 8 microns. Ascus tips blue in Melzers,


Any help, comments much appreciated as always.


Best Wishes - John

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Andreas Gminder, 28-05-2015 22:57
Andreas Gminder
Re : Possible Peziza polaripapulata

Hello,


 


very probably yes.


The colour change (olivaceous to ochraceous) and the shape (somewhat umbilicate) are typical for the "apiculati"-group. But to be certain we need to see mature spores and how the ornamentation looks like then. Best coloured by cotton blue.


best regards,


Andreas

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John Leach, 28-05-2015 23:26
Re : Possible Peziza polaripapulata
Hello Andreas and a pleasure to hear from you!

Thank you for your reply and examples. I shall have a look at the material as you suggest and update.

Very Best Wishes -John
John Leach, 05-06-2015 17:08
Re : Possible Peziza polaripapulata

Hello


Sorry for the delay in reply but I needed to get more material. Even after a thorough search I only managed to find another 2 small Apothica 8 to 11mm dia.


I did as you suggested but still can't replicate the spore characteristic as in your images. Maybe I did not soak in CB for long enough. Should I leave longer perhaps?


Best Wishes - John

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Andreas Gminder, 06-06-2015 14:45
Andreas Gminder
Re : Possible Peziza polaripapulata

Hello John,


the two apothecia shown are very likely to be too young to have mature spores. The characteristic ornamentation is only to bee seen at really mature spores.


best regards,


Andreas

John Leach, 07-06-2015 17:36
Re : Possible Peziza polaripapulata

Hello Andreas.


Yes I think I only have very young material as you suggest. I'll keep an eye on the 'log' for any further development but will name the fungus cf Peziza polaripapulata for now.


Thanks again for all your help.


Best Wishes - John