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04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

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

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

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Nectriaceae or Bionectriaceae on Salix
Nick Aplin, 08-02-2015 17:55

Salut à tous,


I must admit that I'm quite out of depth with this Nectrioid species that I found on blackened Salix wood (I assume there is some other fungus present) in the South of England 6/2/2015


51.124°N 0.1418°W, 81 metres above sea level


Ascospores 7 - 9.4 x 3 - 4.1, subtly striated, live spores with ~2 guttules


Ascocarp wall 31-55 µm thick, KOH-


No anamorph seen


Without culture, I'm certainly not expecting a name for this collection, but I know there are a few regular visitors here that are interested in these species and might be able to help.


I have a dried collection of about 30 perithecia.


Amitiés,

  • message #33662
  • message #33662
Alain GARDIENNET, 08-02-2015 20:09
Alain GARDIENNET
Re : Nectriaceae or Bionectriaceae on Salix

Hi Nick,


A very very interesting species ! Excellent photos.


It should be a Nectria s.l. But  perhaphs an unknown one.


Let's wait specialists.


Alain

Christian Lechat, 08-02-2015 21:52
Christian Lechat
Re : Nectriaceae or Bionectriaceae on Salix
Hi Nick,
Interesting specimen, you should sheck if there are numerous orange  oily droplets in ascomatal wall and hymenium, by crushing (in water) a perithecium  under a cover slide.

Regards,
Christian
Nick Aplin, 09-02-2015 03:06
Re : Nectriaceae or Bionectriaceae on Salix

Salut Alain et Christian,


The first photo is of the bottom of the hymenium


The second is the top of the perithecium wall, near the ostiole


Nice orange droplets!


 


Thanks for your help,


Nick

  • message #33673
  • message #33673
Christian Lechat, 09-02-2015 05:24
Christian Lechat
Re : Nectriaceae or Bionectriaceae on Salix
Ok Nick,
I think your specimen remains in the Hydropisphaera "peziza" complex.
Could you check the size of ascospores?

Christian
Alain GARDIENNET, 09-02-2015 07:01
Alain GARDIENNET
Re : Nectriaceae or Bionectriaceae on Salix

Rien de tel qu'un vieux renard expérimenté !


Je n'avais pas reconnu Hydropisphaera peziza s.l. . Mais avec KOH-, spores striées, j'aurais dû y penser.


Alain