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18-04-2024 18:52

éric ROMERO éric ROMERO

Bonjour, J'ai beoin d'éclairage(s) pour ce Daldi

13-04-2024 11:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, April 2024

16-04-2024 17:43

Giovanni ANTOLA Giovanni ANTOLA

Bonjour,Trouvé sous paille humide, autour d'un je

14-04-2024 20:04

Manak Roman

Hi all,I have two very similar finding last weeken

17-04-2024 10:44

Bernard CLESSE Bernard CLESSE

Juste à côté du cône avec "Hyphodiscus ayelii"

16-04-2024 22:53

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

14-04-2024 22:58

B Shelbourne B Shelbourne

• Bactridium flavum (anamorph): Distinctive macr

15-04-2024 14:37

Eric Rousseau

Bonjour,Je sais que les cyphelles ne sont pas des

13-04-2024 21:10

B Shelbourne B Shelbourne

• Genus Cistella on dicots: Habitat, macro, hair

08-04-2024 19:57

Elisabeth Stöckli

Bonsoir,Récolté au bord du chemin, apothécie 0.

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Dothideomycete
Andrés Valverde Valera, 19-12-2016 22:37
Andrés Valverde ValeraBonjour,
Je vous ajoute quelques photos d'un dothideomycete (comme m'a dit le camarade Enrique Rubio), que j'ai trouvé le 5 décembre près de l'étang du Banyoles sur bois morte de possible Salix. Les pseudotecia? qui sont tuberculées mesurent 160 ?m aprox. J'ai pu regarder les spores, qui mesurent 14,4 x 4,8 micres.
J'espère que vous pouvez m'aider à déterminer de quelle espèce il s'agit.
Merci beaucoup d'avance,

Andrés Valverde Valera
El Prat de Llobregat (Barcelona)


PD. Excusez-moi mes possibles fautes d'orthographe.

  • message #46218
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Gernot Friebes, 19-12-2016 22:46
Re : Dothideomycete
Hi,

could you elaborate a bit on the form of the ascomata? Is it possible that they grow on old stromata of Hypoxylon?

Best wishes,
Gernot
Alain GARDIENNET, 19-12-2016 23:40
Alain GARDIENNET
Re : Dothideomycete
You think at Immotthia, Gernot, right ?
Gernot Friebes, 19-12-2016 23:46
Re : Dothideomycete
Hi Alain,

indeed, that was my first impression...

Best wishes,
Gernot
Andrés Valverde Valera, 19-12-2016 23:58
Andrés Valverde Valera
Re : Dothideomycete
Hi Gernot,

I prefer to send to you a picture that I have just took under the microscope of these ascomata, that are tuber-form, distributed especially in the periphery of the fruiting bodies.

At first I thank in Hypoxylon serpens, for the shape of the mushroom, but I haven't found spores like those of Hypoxylon. Although I have to say that I have found an another kind of spores while searching the asci, that I attach in the second picture.

Best whishes,
Andrés
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Alain GARDIENNET, 20-12-2016 00:03
Alain GARDIENNET
Re : Dothideomycete

Andrés, the solution is perhaps there : http://www.ascofrance.fr/search_recolte/3004.


Alain

Gernot Friebes, 20-12-2016 00:05
Re : Dothideomycete
Hi Andrés,

yes, that looks very much like Immotthia atrograna on Hypoxylon sp. On your last photo you show the conidia of this species.

Best wishes,
Gernot
Andrés Valverde Valera, 20-12-2016 00:15
Andrés Valverde Valera
Re : Dothideomycete
Thanks you so much Alain and Gernot!!!

I've seen the subject "sur hypoxylon / 2. pyreno noir" and I also think that I have found the anamorphe (Sphaeropsis parasitans) but I will write only Immothia atrograna bescause I understand that they are their conidia.

Thank you very much for your help! Without you I would never have determined this species. Muchas gracias!!

Andrés
Jaklitsch Walter, 21-12-2016 19:31
Re : Dothideomycete
http://www.zobodat.at/pdf/OestZPilz_11_0093-0106.pdf

Hello, here is a little paper about Immotthia. I hope that the link works. Cheers, Walter
Andrés Valverde Valera, 21-12-2016 22:35
Andrés Valverde Valera
Re : Dothideomycete
Hello Walter,

Yes, the link works! And I have found another very recent in researchgate,
https://www.researchgate.net/publication/299423764_Immotthia_atrograna_Dacampiaceae_Ascomycota_a_new_for_Ukraine_fungicolous_fungus_from_the_Carpathians

Thanks you so much,

Andrés Valverde Valera