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14-04-2024 20:04

Manak Roman

Hi all,I have two very similar finding last weeken

18-05-2024 10:47

Anna Klos

Goodmorning,We found this tiny ascomycete (max. 1m

17-05-2024 15:17

éric ROMERO éric ROMERO

Bonjour, Un besoin d'aide pour ce Podospora (...?

17-05-2024 16:25

Pavel Jiracek

Erioscyphella lunata, found on a fallen needle of

29-01-2022 21:44

Jan Eckstein

Good evening, apothecia small, yellowish, 150-300

16-05-2024 11:19

Sylvie Le Goff

Bonjour, j'ai récolté sur une branchette de feui

14-05-2024 09:19

Hans-Otto Baral Hans-Otto Baral

Hi, I want to announce for next Sunday 17.00 middl

16-05-2024 11:49

Castillo Joseba Castillo Joseba

De ayer en rama de abetoNo se por donde mirarA ver

14-05-2024 09:50

Yannick Mourgues Yannick Mourgues

Hi. Found on decorticated wod of Populus cf. alba

16-05-2024 09:02

Vasileios Kaounas Vasileios Kaounas

Found 15-05-24 in forest with Abies cephalonica, i

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Helvella sp.
Godorova Olga, 03-02-2015 17:31
Godorova OlgaHello, dear friends. I've got an interesting Helvella here. First I thought, this should be H. elastica, but it's cap seems to be quite regular and outer surface is velvety. Inner cap surface is smooth, though.
It was found in a wet place in mixed forest, near oak trees.
The spores are quite large, about 25-28*14-16 mkm. The ascos 350-410*20-25 mkm. The paraphyses enlargened up to 7-8 mkm at the tips.
The last three micro pictures is the tissue of the inner, whitish part of the cap.
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Nicolas VAN VOOREN, 03-02-2015 17:40
Nicolas VAN VOOREN
Re : Helvella sp.
I think it's Helvella albella
Godorova Olga, 03-02-2015 17:43
Godorova Olga
Re : Helvella sp.
Thank you.
Do you think, that the spore measures are within a normal range for that species?
As I've seen, that Helvella albella spores are about 20-24*12-14 in "Ascomycete Fungi of North America: A Mushroom Reference Guide" By Michael Beug, Alan E. Bessette, Arleen R. Bessette

Mario Filippa, 04-02-2015 01:18
Re : Helvella sp.

Hi Olga,


first, it is not H. elasticaH. albella is a good idea as Nicolas said, however the spore size seem too large for every species in this group. Quèlet described H. albella with spores 18-20 µm.


And pay attention, it is complicated to compare our collections with American ones, it may exist more taxa that we can think.


We have made several collections with the same habitus of your specimens, but with smaller spores, mostly 19-23 µm long, more frequent in mediterranean habitat, but always under oaks as your specimens. So, forgive me if I ask this, check the measurements one more time.


An then, it would be nice to know where and when this was collected.


Regards


Mario


 

Carlo Agnello, 04-02-2015 05:59
Carlo Agnello
Re : Helvella sp.
Dear Friends
as you know, I love to call these collections Helvella panormitana ;)
Godorova Olga, 04-02-2015 06:57
Godorova Olga
Re : Helvella sp.
Thank you, Carlo. :)
Thank you, Mario.
They were  collected this Saturday, in a mixed forest near Jerusalem, Israel.
If someone is interested in this samples, I still have them in my fridge. I'll be glad to dry them and send for proper check, as, indeed, I think, in Israel this species was not registered yet. I don't know local mycologists,, who would work on Ascomycetes research currently.
I was already told, that the spores are to big and checked the measures again, but the average numbers are still the same, I think. My microscope in not a professional one, so may be my check is somewhere not exact or wrong, as I measure the length of the picture on the screen in milimeters and then do a calculation to micrometers according to the magnification numbers.
Mario Filippa, 04-02-2015 07:55
Re : Helvella sp.

Well Olga, if from Israel then I think Carlo is right :)


I would be very interested to examine the collection. I send you a mail with my address.


I don't think it's a microscope problem, if the other measurements you take are "normal".


Thank you


Mario

Godorova Olga, 05-02-2015 14:18
Godorova Olga
Re : Helvella sp.
Hello, dear Mario. I have not received an email from you yet. Did you manage to send it?
Mario Filippa, 05-02-2015 23:47
Re : Helvella sp.

Hi,


the mail was sent yesterday morning, however I retry on both adresses (maybe you better delete the addresses from here where every spammer can read)...


Regards


Mario

Godorova Olga, 06-02-2015 05:56
Godorova Olga
Re : Helvella sp.
Thank you, now I've received your letter. :)