Accès membres

Mot de passe perdu? S'inscrire

28-04-2024 13:30

Juuso Äikäs

On Friday I found these pale, hairy little discos

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

« < 1 2 3 4 5 > »
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
  • message #31252
  • message #31252
  • message #31252
  • message #31252
Yatsiuk Iryna, 15-09-2014 17:36
Yatsiuk Iryna
Re : Helvella
There are micros - spores, paraphyses, 'hairs' underside the cup and on the stalk.
  • message #31254
  • message #31254
  • message #31254
  • message #31254
  • message #31254
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
  • message #31387
  • message #31387
  • message #31387
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