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16-03-2025 11:04

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je cherche une copie de l'article suivant:

13-03-2025 19:16

Enrique Rubio Enrique Rubio

By means of these photographs could anyone identif

13-03-2025 16:50

Harald Homa Harald Homa

Good evening Another find I'm looking for help wi

15-03-2025 13:10

Edvin Johannesen Edvin Johannesen

These hair balls are growing on top of Nemania ser

14-03-2025 23:29

Warre Van Caenegem

Good evening everyone. Last year, I found this cop

12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

14-03-2025 22:05

Yanick BOULANGER

BonsoirSur écorcePetits bâtonnets friable, tortu

11-03-2025 13:10

Blasco Rafael Blasco Rafael

Hola, alguna idea para esta especie ??Recogida sob

14-03-2025 16:26

Guy Marson

Hallo Harald,Rein von der Optik, sehen die Sporen

13-03-2025 09:25

Yanick BOULANGER

BonjourJe poste ce pyrénomycète, pas pour Chaeto

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Yellow longneck...
Martin Bemmann, 19-12-2009 22:49
Martin BemmannHello,

this one I found last weekend before it started to freeze... meanwhile we have here -14 C.
I collected a dead twig of Prunus avium observing some apothecia with the hand loupe that turned out to be Neodasyscypha cerina. But under the bino I found some other fungi upon it, among them this one I can't determin.
By habitus it reminds me to the Natantiella I found recently, immersed in the soft decaying wood on decorticated part of the twig, with a "long" (< 1mm) ostiole neck and bunshes of asci at the bottom when excavated. ( I didn't manage yet to prepare a complete specimen but I belive it would have the same shape as a Natantiella or Eutypella.
But the colour of the outer wall and the ostiole is yellow and it is not crusty at all but gelatinous. Shape and appearance of the spores is also very differrent.
Can somebody show me the way?

Best regards,

Martin
  • message #9873
Martin Bemmann, 19-12-2009 22:52
Martin Bemmann
Re:Yellow longneck...
another view in water showing the cluster of asci to the left:
  • message #9874
Martin Bemmann, 19-12-2009 22:54
Martin Bemmann
Re:Yellow longneck...
Asci (81-91x8,4-11 µm):
  • message #9875
Martin Bemmann, 19-12-2009 22:54
Martin Bemmann
Re:Yellow longneck...
more asci:
  • message #9876
Martin Bemmann, 19-12-2009 22:55
Martin Bemmann
Re:Yellow longneck...
and spores: (27,6-31,9 x 3,7-4,3 µm):
  • message #9877
Martin Bemmann, 19-12-2009 23:02
Martin Bemmann
Re:Yellow longneck...
Finally, the apical apparatus stained slightly blue in IKI:

  • message #9878
Martin Bemmann, 20-12-2009 15:18
Martin Bemmann
Re:Yellow longneck...
Hi again,

during my search I came across the genus Pseudohalonectria that shows morphological similarities. But the taxa descibed by Shearer (1989) do not fit well to my collection (much larger dimensions of asci and ascospores), not to mention that P. is found generally on submersed wood which wasn't the case with my find.
On this stick are 2-3 ascocarps more. I don't want to slaughter them until I see a direction what to search for.
Any suggestions welcome!

Best regards,

Martin


Edited: Pseudohalonectria
Martin Bemmann, 20-12-2009 23:14
Martin Bemmann
Re:Yellow longneck...
PS: I am not sure about IKI+... maybe the apical apparatus contains only refractive bodies...
Jacques Fournier, 21-12-2009 15:56
Jacques Fournier
Re:Yellow longneck...
Hi Martin,
I agree Pseudohalonectria is a possible lead, but noy very convincing because of the different ecology. Yellow waxy necks and fusiform spores also indicate possible relationships with Ceratosphaeria but in this genus the ascomatal wall is much thicker. I suggest you first manage to find more material, or try to incubate your branch of Prunus outdoor and be patient! If it works Martina Réblova could perhaps help you. Or just ask her now at reblova@ibot.cas.cz.
Cheers,
jacques
Martin Bemmann, 21-12-2009 16:13
Martin Bemmann
Re:Yellow longneck...
Thank you Jaques,

I will try to contact her. The branch lies in my garage covered with a damp tissue. Outside it is some degrees below zero...

Best regards,

Martin