Accès membres

Mot de passe perdu? S'inscrire

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

« < 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