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24-02-2018 19:51

Riet van Oosten Riet van Oosten

Hello, Found by a friend: february 2018.On: dead

25-02-2018 15:08

Jean-Louis JALLA Jean-Louis JALLA

Bonjour à tous. Les Journées Mycologiques de Ha

25-02-2018 14:04

Castillo Joseba Castillo Joseba

en las hojas reproductoras de un cono de piña  h

25-02-2018 12:03

Castillo Joseba Castillo Joseba

en madera sin determinarA ver si hay alguna sugere

24-02-2018 08:12

Blasco Rafael Blasco Rafael

Hola necesito de su ayuda para conocer esta especi

25-02-2018 09:05

Patrice TANCHAUD

Bonjourest-ce qu'il y a des conidies chez cette es

10-02-2018 19:05

Yves Deneyer Yves Deneyer

Les exemplaires ne sont probablement encore complÃ

23-02-2018 23:35

Valencia Lopez Francisco Javier

Hola a todos/asTengo estos pequeños ascos, recole

23-02-2018 17:58

Andrew N. Miller Andrew N. Miller

Do you recognize this conidium?  Anything close t

23-02-2018 13:48

Garcia Susana

Hola:Encontrado sobre madera de planifolio.Son per

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Eutypa lata, Eutypa maura?
Riet van Oosten, 24-02-2018 19:51
Riet van OostenHello,

Found by a friend: february 2018.
On: dead branch of Sambucus nigra.
Asci: 8-spored.
Spore size: 5.4-6.6-7.2 x 1.4 µm (immature spores???)


Eutypa lata, Eutypa maura?


Kind regards,
Riet

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Jacques Fournier, 25-02-2018 10:58
Jacques Fournier
Re : Eutypa lata, Eutypa maura?
Hi Riet,
likely E. maura but this species is highly specific for Acer pseudoplatanus.
Just split the branch longitudinally across the stroma and if you see deeply immersed perithecia under a thick black superficial layer and surrounded by black extensions downwards like on the attached photo, you can safely recognize this fungus.
Host identification is most often critical to identify Diatrypaceae, otherwise it is often a headache.
Good luck,
Jacques
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Riet van Oosten, 25-02-2018 12:06
Riet van Oosten
Re : Eutypa lata, Eutypa maura?
Hi Jacques,

Thank you very much for your help and advice.
I will give it a try!

Greetings, Riet
Riet van Oosten, 25-02-2018 15:54
Riet van Oosten
Re : Eutypa lata, Eutypa maura?
Dear Jacques,

I can see "deeply immersed perithecia under a thick black superficial layer" ("and surrounded by black extensions downwards").
Are the black extensions on the photo's also correct for Eutypa maura?
The third photo I just received from the owner of the material.


Riet




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Jacques Fournier, 25-02-2018 16:41
Jacques Fournier
Re : Eutypa lata, Eutypa maura?
good, what you have here is the signature of this species
Jacques
Riet van Oosten, 25-02-2018 17:36
Riet van Oosten
Re : Eutypa lata, Eutypa maura?
Glad to hear that Jacques!
Merci beaucoup!
Riet