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18-04-2025 23:16

Robin Pétermann Robin Pétermann

Bonjour, Voici une probable Mollisia, genre que j

19-04-2025 20:48

Per Marstad Per Marstad

Dear Ascofrance. I have not posted pyrenos for a l

19-04-2025 18:58

Michel Hairaud Michel Hairaud

Bonjour,Je recherche l'article suivant :  ... K

19-04-2025 08:51

Henri Koskinen

Could you help me in the right direction with this

18-04-2025 21:54

Hartmut Schubert Hartmut Schubert

Hi Forum,I found this aquatic pyrenomycete a few d

16-04-2025 08:53

Josep Torres Josep Torres

Hello.An anamorph photographed under holm oaks thi

18-04-2025 17:13

Francois Guay Francois Guay

I found this interesting reddish Helotiales growin

18-04-2025 11:34

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España), r

17-04-2025 23:03

Yanick BOULANGER

BonsoirVoici un Scutellinia qui nous pose un probl

17-04-2025 18:31

Giovanni ANTOLA Giovanni ANTOLA

Bonjour, J'aurais besoin d'aide avec ce pezizale

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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