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04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

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

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

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

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Helvella
Yatsiuk Iryna, 15-09-2014 17:31
Yatsiuk IrynaHello, everyone
I have doubts about this specimen, to be exact I choose between H. elastica and H. latispora. It was collected in mixed forest - oaks (Q.robur), linden and maple. 
There are measurements:
Spores: 19,4-22,5*12,2-15,5 um
Asci:290-325*17-19 um
Croziers present

Underside of cup is almost smooth, microscopically a palisade layer of 3-celled hyphae is visible, in general this structures are 30-40 um long. Stalk is more 'furry' macroscopically, and this hyphae are much longer - 80-90 um and more separated.

Paraphyses do not contain brown pigment.

help me to choose, please:) 

Best wishes,
Ira
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Yatsiuk Iryna, 15-09-2014 17:36
Yatsiuk Iryna
Re : Helvella
There are micros - spores, paraphyses, 'hairs' underside the cup and on the stalk.
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Yatsiuk Iryna, 15-09-2014 17:42
Yatsiuk Iryna
Re : Helvella
I forgot to say that it was collected 30/07/2014

Nicolas VAN VOOREN, 16-09-2014 08:04
Nicolas VAN VOOREN
Re : Helvella
After the structure of ectal excipulum, I think it's Helvella elastica.
Yatsiuk Iryna, 16-09-2014 20:43
Yatsiuk Iryna
Re : Helvella
Thank you, Nicolas

H. latispora must be more hairy?

With best wishes,
Irina
Mario Filippa, 19-09-2014 01:54
Re : Helvella

Well, the specimen seems very old, or rottening, and in these conditions can be very difficult, if not impossible, to choose. The stipe seems pigmented, this is a feature that is not normally present in any species in the section Elasticae. But I think it's only too old.


One single young specimen should give the solution... :)


However, the collection was consisting only in one ascoma? 

Cvenkel Miran, 21-09-2014 09:07
Re : Helvella
Note also Gyromitra infula old specimens can look like Helvella. First from image set was confirmed by spores.
Yatsiuk Iryna, 22-09-2014 10:27
Yatsiuk Iryna
Re : Helvella
Hello, Mario

I aked a person who collected this specimen and he had its photos in fresh state. Unfortunately there was only one fruitbody. As far as I can see the stalk is not pigmented, which probably confirms H.elastica?

Best regards,
Irina
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Yatsiuk Iryna, 22-09-2014 10:34
Yatsiuk Iryna
Re : Helvella
Hello, Cvenkel,

I've found photos of fresh specimen (attached above) and as for me it doesn't look like G.infula. What do you think?
 
Best regards,
Irina
Cvenkel Miran, 22-09-2014 13:03
Re : Helvella
It appears to me stalk coloration is due to old age and not species property , see forinstance this:
https://www.google.si/search?q=Helvella+lacunosa&client=firefox-a&hs=132&rls=org.mozilla:en-US:official&channel=sb&tbm=isch&tbo=u&source=univ&sa=X&ei=nP8fVNvFIeTe7Aa974H4Cg&ved=0CCEQsAQ&biw=1920&bih=900

Likely then, that is valid for all hellvelas, doh I did no see so dark elastica as yours ever (probably they hide very good in surrounding autmn leafs).
See my collection: http://agrozoo.net/gallery/Helvella
Mybe the one before last goes towards your specimen regarding coloration.

The fresh specimen looks like hellvela elastica to me, seen one super fresh Gyromitra infula yesterday, I think they can't bi mistaked (fresh).
See also this & compare to your images from first post: http://agrozoo.net/jsp/Galery_one_image.jsp?id_galery_obfuscated=8a4596c4119e4d548c0fc6c35d9d80d4
The stalk looks the same, the cap can be easily deformed to deformation as on your images (by my expiriemnce).
Mario Filippa, 22-09-2014 21:56
Re : Helvella

All species in the section Elasticae have a white stalk, when fresh, as this specimen in the photos taken by the collector.


In other sections the things may be different (as in H. lacunosa), but in that case not in all specimens (segregate species?).


With the images added, I think it's more correct Helvella latispora in the broad concept of Häffner, 1987. But I keep a great doubt that it fits with the original Boudier's meaning, with spores very short and broad.


No doubt that it is not a Gyromitra of course, completely different colours, ectal excipulum spores... at all!


Regards