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28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

06-03-2026 17:51

Orbilia?
William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

06-03-2026 09:41

indian literature
Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

03-03-2026 20:34

Cercophora-Podospora-Arnium 210226 333 on cow dung
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Sinensia
Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Geopyxis majalis ?
Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

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Aquatic sordariomycete - Ceratosphaeria?
Ibai Olariaga Ibarguren, 11-12-2013 08:37

 


Hi there,


I am trying to identify a non-stromatic pyrenomycete growing on submerged wood in a small stream from Tyresta, south to Stockholm (Sweden). The are is granitic and the water was dystrophic.


The perithecia grow in small groups, semiimmersed or almost superficial. the venter globose-subglobose, 0.6-0.8 mm, black, with a short cylindrical neck, apparently smooth. Asci unitunicate, cylindrical, 8-spored, with a distinct apical annulus, inamyloid (tested in Melzer), 196-210 x 10-11 µm. Spores ellipsoid-fusiform, with abundant guttules, 3-septate, 25.5-28.5 x 8.5-9.5 µm. The perithecial wall is composed of several layers of subglobose cells.


I initially thought it might be a Chaetosphaeria, but the asci are inamyloid. Then I searched in Ceratosphaeria, and also Zignöella, but did not find any species that fit.


Any idea? Thanks in advance!


Cheers,


Ibai.


 


 

  • message #26182
  • message #26182
  • message #26182
  • message #26182
  • message #26182
Martin Bemmann, 11-12-2013 08:46
Martin Bemmann
Re : Aquatic sordariomycete - Ceratosphaeria?
Hi Ibai,

try Annulatascaceae like this one:
http://www.ascofrance.fr/search_recolte/2457

Regards
Martin
Alain GARDIENNET, 11-12-2013 08:47
Alain GARDIENNET
Re : Aquatic sordariomycete - Ceratosphaeria?

See  towards Annulusmagnus triseptatus


Alain

Alain GARDIENNET, 11-12-2013 08:48
Alain GARDIENNET
Re : Aquatic sordariomycete - Ceratosphaeria?

Oh you were too fast Martin ! Grrrrr....


 

Ibai Olariaga Ibarguren, 11-12-2013 10:50
Re : Aquatic sordariomycete - Ceratosphaeria?

 


Thanks Martin and Alain! I had ruled out Annulatascaceae for some reason,but it fits A. triseptatus with no doubt.


I see now that there was a previous record of A. triseptatus from south Sweden.


Cheers,


 


Ibai.