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27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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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.