Accès membres

Mot de passe perdu? S'inscrire

27-04-2026 09:59

Microdiplodia henningsii
Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

Ramularia sp ?
William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

lachnum pudicellum
Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

24-04-2026 03:16

Trinacrium robustum?
David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza -> Phylloscypha labessiana
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

« < 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