Accès membres

Mot de passe perdu? S'inscrire

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

« < 1 2 3 4 5 > »
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

  • message #52449
  • message #52449
  • message #52449
  • message #52449
  • message #52449
  • message #52449
  • message #52449
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
  • message #52457
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




  • message #52472
  • message #52472
  • message #52472
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