Accès membres

Mot de passe perdu? S'inscrire

15-08-2017 15:06

William Slosse William Slosse

Good afternoon everyone,I found following species

10-08-2017 20:05

Francisco  SÃNCHEZ Francisco SÁNCHEZ

Recolected in Norway. 28.07/17. Ascomas growing on

19-05-2016 21:23

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,J'ai trouvé ce que je pense être

13-08-2017 12:45

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Pourrais-je avoir votre avis sur c

30-07-2017 19:33

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,does someone have this publication, please?D

12-08-2017 15:11

Blasco Rafael Blasco Rafael

Hola, necesito de su ayuda para ver por lo menos e

11-08-2017 21:54

Ueli Graf Ueli Graf

Hallo,suche Literatur zu Belonium coroniforme.Grus

11-08-2017 17:19

Ethan Crenson

Collected in Vermont in Green Mountain National Fo

11-08-2017 16:48

Ethan Crenson

Hello, I think that this is Phaeohelotium epiphyll

11-08-2017 17:57

Ethan Crenson

From Staten Island, New York on branches of hardwo

« < 719 720 721 722 723 > »
Hymenoscyphus albidus?
William Slosse, 15-08-2017 15:06
William SlosseGood afternoon everyone,
I found following species on previous year's petioles of Fraxinus.
At first sight I thought this could be Rutstroemia luteovirescens but because of the short stalk I changed soon my vision.
Spores 18.75 x 4.55 um
Paraphyses filiform & septated
Asci I+ and with (?) crosiers
Thx for your confirmation,
William
  • message #50001
  • message #50001
  • message #50001
  • message #50001
  • message #50001
  • message #50001
  • message #50001
  • message #50001
Michel Hairaud, 15-08-2017 15:37
Michel Hairaud
Re : Hymenoscyphus albidus?
Hi William,

H. albidus has become as you may know far less current now in europe than the macro replica looking H. fraxineus (T. Kowalski) Baral, Queloz & Hosoya 2014. Both have the same substrate

It is essential to make sure whether there are croziers or not as albidus has none. I cannot surely tell from your pictures whereas the spores dimensions would fit for H. albidus.
Amitiés. Michel
Martin Bemmann, 15-08-2017 15:57
Martin Bemmann
Re : Hymenoscyphus albidus?
Looks like a crozier in the lower left corner of image 7. But, indeed, better pictures of attached ascus bases are needed.
The ash dieback arrived in Belgium at least in 2007. So H. fraxineus is very likely.

Regards
Martin
William Slosse, 15-08-2017 19:40
William Slosse
Re : Hymenoscyphus albidus?
Thanks four your reaction, Michel.
I think I can indeed see some crozier-like structures (cfr photo, I'm not always sure about these croziers).
So there is a good chance this species is fraxineus I may think?
Regards,
William
  • message #50004
  • message #50004
  • message #50004
William Slosse, 15-08-2017 19:42
William Slosse
Re : Hymenoscyphus albidus?
Thanks for your reaction too, Martin.
I toke some pictures of the croziers.
See therefore my answer to Michel.
Regards,
William
Martin Bemmann, 15-08-2017 19:53
Martin Bemmann
Re : Hymenoscyphus albidus?
quite sure about croziers...

Regards
Martin
Michel Hairaud, 15-08-2017 21:48
Michel Hairaud
Re : Hymenoscyphus albidus?
No doubt any more . So H. fraxineus .
Amitiés Michel