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08-01-2025 23:07

Jean-Luc Ranger

Je pensais avoir à faire à un Hypomyces mais les

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Karl Soler Kinnerbäck

Hi! Found this small disco on herbaceous stems in

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Adam Polhorský

Hello, can anyone provide this work? Samuels GJ (

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Greetings everyone!Would perhaps someone here reco

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Rot Bojan

Hello!I found some photos in the archive, with inc

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Petra Eimann Petra Eimann

Hello all,Found on 04.12.2024 from a mixed deciduo

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Robin Isaksson Robin Isaksson

Hi!Anyone that has this one: Lowen, R. 1989. Two n

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Enrique Rubio Enrique Rubio

THESE BLACKISH ASCOMATA WERE SEMI-IMMERSED IN A HA

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Jean-Luc Ranger

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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