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12-11-2019 10:32

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againExactly at the same place than my previous

25-12-2019 17:54

Valencia Lopez Francisco Javier

Hola a todos/asEstas supuestas pezizas estaban en

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

28-08-2014 18:36

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

31-05-2026 22:53

éric ROMERO éric ROMERO

Bonjour tous, Je n'ai pas d'idée pour cette esp

30-05-2026 21:12

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

31-05-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a rather

25-05-2026 16:35

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

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Helvella semiobruta or helvellula?
Carmel Sammut, 02-02-2015 20:11
Hi,
   I found a few specimens of a small Helvella under a small Cistus creticus and close to Pistacia lentiscus at Wardija, Malta. No large trees were in the vicinity.

The specimens measure 18-20mm x 20-25mm.

Asci were about 280-285µm x 19-21µm, J-ve and biseptate, Paraphyses slightly inflated with 6-7µm at the tips, Spores with large central oil drop 19.3-22.2 x 12.5-14.1µm; Q = 1.40 - 1.67, Mean = 20.8 x 13.4 µm ; Qe = 1.5

This species appears to be associated with Cistus as the specimens were close to the roots. I had found some similar specimens in a different location some time back but there were no Cistus or Pistacia but Olive trees, conifers and Pinus halapensis. Is this specimen H. semiobruta or H. helvellula?
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Mario Filippa, 03-02-2015 08:25
Re : Helvella semiobruta or helvellula?

In my species concept this is a typical Helvella semiobruta. Even if in the protologue was not mentioned any partnership with Cistus, every recent known collection was made under Cistus.


We found it also under pines and olives, but there were always at least a little shrub of Cistus. However it is not impossible that his ecology is not so exclusive. But I think in Malta H. helvellula can well be present. Better you post some foto of these collections when possible.


See Rivista di Micologia 2013 (3).


So, Malta is to add to the known distribution of this species!


Regards


Mario Filippa 

Carmel Sammut, 03-02-2015 18:16
Re : Helvella semiobruta or helvellula?
Thank you very much Mario.

Unfortunately I do not have access to Rivista di Micologia and I would appreciate a copy of your paper on this subject.

The other species is very similar and possibly the same species as you say.
The specimens were found in Mgarr, Malta in an area with Olive trees, Pinus halapensis and conifers. I do not remember seeing Cistus plants but I will take a look when I visit again. Collection date 16/1/14 The main difference appears to be the large asci in this collection, but in the previous collection I only measured about 5 different asci. Spore size is the same. The ectal excipulum was photographed from rehydrated essicata.
Asci 311-430µm x 17.6-21.4µm
Spores 19.4-23.4µm x 13.2-14.6µm; Q = 1.33-1.61;
Mean = 21.0µm x 13.9µm; Qe = 1.51

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Mario Filippa, 04-02-2015 00:30
Re : Helvella semiobruta or helvellula?

Article sent :)


The second collection cannot be H. helvellula, it is still H. semiobruta most probably.


The size of the asci is extremely variable from young to mature asci with spores ready to be launched. And the mounting media can modify greatly the asci, so I think that it is a feature to be used very carefully, in this case don't give it too much importance. 


It should be very interesting for me to have some specimen, if you want you can make some collections an then send them to me (at the end of the season).


Regards


Mario

Carmel Sammut, 04-02-2015 20:44
Re : Helvella semiobruta or helvellula?
Thanks Mario,
                   I'll send you a PM and tell me which specimens you like to have.