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18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

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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.