Accès membres

Mot de passe perdu? S'inscrire

29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

« < 1 2 3 4 5 > »
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