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26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

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Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

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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.