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21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

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Helvella crispa?
William Slosse, 29-01-2020 00:02
William SlosseRecently I found this one specimen between about fifty Helvella crispa.
Can this be a different form of crispa or yet another species?
The site is a well-evolved plantation of Hazel on supplied clayground.
Greets,
William
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Lothar Krieglsteiner, 29-01-2020 09:09
Lothar Krieglsteiner
better H. lacunosa

Hello William,


for me this looks like a (pale) form of H. lacunosa. The main macroscopic difference between crispa and lacunosa is not the colour, but the matter how the "cap" is placed in relation to the stipe. The "cap" of crispa is totally free, whereas that of H. lacunosa is laterally adherent to the stipe.


Best regards, Lothar


P.S. lacunosa is now a complex of species - ...

William Slosse, 29-01-2020 21:04
William Slosse
Re : Helvella crispa?
Hello Lothar,
thanks for your interesting feedback.
I have re-examined the specimen and found that the "cap" has grown in two points with the stem. Is this sufficient to name this specimen as lacunosa?
Can lacunosa also be distinguished microscopically from eg crispa?
Regards,
William
Lothar Krieglsteiner, 29-01-2020 21:31
Lothar Krieglsteiner
Re : Helvella crispa?

Hello William,


I don`t know if there are microscopic differences. And yes: this is sufficient to name the specimen lacunosa - at least sensu lato. I do not have the overview on the lacunosa-group, so I don`t know if there are other possibilities than lacunosa sensu stricto for your specimen.


Best, Lothar

William Slosse, 29-01-2020 22:26
William Slosse
Re : Helvella crispa?
Thx for all your feedback, Lothar
Mario Filippa, 30-01-2020 01:25
Re : Helvella crispa?
I agree with Lothar.

There are a lot of differences, however, between H. crispa and H. lacunosa.

The abhymenium is somewhat hairy (and brownish) in H. crispa and it is naked (and grey) in H. lacunosa. As a general rule, in Helvella the anastomoses between stipe and excipulum only happen in the naked species.

And, of course, in H. crispa the stipe is always white...

Regards

Mario
William Slosse, 30-01-2020 18:10
William Slosse
Re : Helvella crispa?
Thx for this interesting info, Mario.