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17-04-2021 15:01

Khomenko Igor Khomenko Igor

Hi, I'm having trouble identifying this hairy disc

17-04-2021 19:34

Juuso Äikäs

This Thursday I found some tiny discos growing on

16-04-2021 08:53

Pierre-Yves Julien

Bonjour à tous, 1er post pour moi sur ce forum.R

17-04-2021 13:41

Angel Pintos Angel Pintos

Hello everybody,Anyone on the forum is from Götti

16-04-2021 22:02

Bo Valeur Bo Valeur

Hi thereThis Nice Lachnum was found on a dead bran

17-04-2021 11:45

Karl Soler Kinnerbäck Karl Soler Kinnerbäck

Hi!Could this be a Nigrograna? I first thought it

09-04-2021 18:44

Mirek Gryc

Hi.Probably anamorph but I have never seen so big

17-04-2021 09:18

Savic Dragisa

Hello everyone,on a corn stalk. I have no idea wha

12-04-2021 19:35

Mirek Gryc

Hello everyone.I'm not sure if it was a branch of

15-04-2021 14:24

Castillo Joseba Castillo Joseba

Me mandan el material seco recolectado en el compo

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With big spores? [Fenestella fenestrata]
Mirek Gryc, 07-04-2021 11:03

Hello everyone.
Substrate can not be able to determine so I place photos.

Is anyone able to help me specify the genre?

Spores: Me = 58.1 × 17.3 um

Regards
Mirek
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Norbert Heine, 07-04-2021 12:01
Norbert Heine
Re : With big spores?
Hello Mirek,

sorry that I can't help you with the wood. But your species should be Fenestella fenestrata. I found it some years ago on small twigs of Quercus. Here are two pictures that you can compare.

Sincerely, Norbert
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Mirek Gryc, 07-04-2021 12:25
Re : With big spores?
Hi Norbert
Both macroscopic and spores are very similar so I think you're right about the genre.
I did not know this species so far, I read a little about him in the literature to get more data, although it will only be pure formality because your type is very likely :)
thank you very much
Mirek
Viktorie Halasu, 07-04-2021 14:27
Viktorie Halasu
Re : With big spores?
Hi Mirek,
I'm not sure if the silver epidermis is ok for it, but Alnus has such a triangular pith. 
Viktorie
Alain GARDIENNET, 07-04-2021 16:01
Alain GARDIENNET
Re : With big spores?
Norbert Heine, 07-04-2021 17:37
Norbert Heine
Re : With big spores?
Thank you, Alain, for the link to this fantastic publication! I didn't know it until now. And I see there is one species named after you as its collector - very nice!

Norbert
Hermann Voglmayr, 08-04-2021 10:55
Hermann Voglmayr
Re : With big spores?
Yes, also the bark looks like Alnus. Which is the type host of Fenestella fenestrata sensu stricto, for which the spores (large size, dark colour, subhyaline apiculi, very dense muriform septation) also fit well.

For a detailed description of Fenestella fenestrata sensu stricto, see https://www.sciencedirect.com/science/article/pii/S0166061617300489

Hermann
Alain GARDIENNET, 08-04-2021 11:48
Alain GARDIENNET
Re : With big spores?

Hi,


And perhaps could Norbert check the one on Quercus to compare to F. parafenestrata ?


Hermann, when we meet a such fungus on Quercus, is it possible to distinguish F. fenestrata end F. parafenestrata basing to morphology ?


All the best,


Alain

Hermann Voglmayr, 08-04-2021 12:14
Hermann Voglmayr
Re : With big spores?
Hi Alain,

ya, that's difficult... Spores of F. fenestrata are in mean larger than those of F. parafenestrata, and appear to be more densely septate (i.e. the cells appear smaller). But one also has to say that these species are rarely found (and probably uncommon), and therefore we didn't have enough collections at hand to fully evaluate the intra- and interspecific variability within these two species.

As with many species, reliable species identification may only be possible with sequence data in intermediate collections not fully showing these differences. And, there may be additional undescribed species around....

Best,

Hermann
Mirek Gryc, 08-04-2021 13:29
Re : With big spores? [Fenestella fenestrata]
Hello everyone again and thank you for very valuable comments.
Yesterday evening I read the article indicated by Alain and I came to the conclusion that this must actually be F. Fenestrata.
However, she wondered the small width of spores in my collection Although the author of the quoted publication mentioned that the collections were studied strongly mature.
The comments contained in the article indicated by Hermann, explain my fears. It follows that the width of spores varies significantly depending on the tested collection. In that case, the width of my spores is within the right range.
Once again, thank you very much and greetings to all.
Mirek