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09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

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Dothideomycete with disarticulating spores
Björn Nordén, 01-02-2013 20:18
We found this species on hard dead wood on a standing ancient Ulmus tree in western
Norway.

It is melanommataceous, perithecia ca 0,3 mm diam, black, numerous over 0.5 dm2, conical, no hairs or anamorph, centrum with long filaments, spores very dark brown, very thick-walled, asci cylindrical, thick-walled in entire length, bitunicate.
3-septate with subconical end cells (4.5-5.1 x 4-4.2 mym) and square to rounded
middle cells, late disarticulating, 15-19 x 4,5-5,5 mym, smooth, no germ slit
or pores apparent.


Suggestions very welcome! 

  • message #21613
  • message #21613
  • message #21613
Alain GARDIENNET, 01-02-2013 23:31
Alain GARDIENNET
Re : Dothideomycete with disarticulating spores
Have you seen disarticulation into ascus or not ?

Perhaps the disarticulated ascpospores are senescent.  

Some genus in Pleosporales show disarticulated ascospores, like Ohleria. But the spores break into asci.
Alain
Björn Nordén, 01-02-2013 23:59
Re : Dothideomycete with disarticulating spores
Yes you are right, i should have remembered, Ive been there before and I have the paper by Samuels, reminds a lot of Ohleria. Thanks!! : )
Alain GARDIENNET, 02-02-2013 00:47
Alain GARDIENNET
Re : Dothideomycete with disarticulating spores
Ok, that's well.
I would be interested by this paper, if you can.
Alain
Björn Nordén, 02-02-2013 15:15
Re : Dothideomycete with disarticulating spores
Hi! Here it comes

Yours

Björn