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11-12-2013 08:37

Ibai Olariaga Ibarguren

  Hi there, I am trying to identify a non-strom

08-12-2013 22:17

Daniel Ghyselinck

Good evening,On dead stem of Urtica, with Leptosph

09-12-2013 01:09

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Pongo unas fotos de Spathularia que e

09-12-2013 12:43

Christian Lechat Christian Lechat

Dear friends,I would need of the following papers:

06-12-2013 19:18

Joop van der Lee Joop van der Lee

Found on horse dung, Fruitbody: 87.36x61.38 um; c

04-12-2013 13:30

Garcia Susana

Hello I found this ascomycete on sheep dung.Apoth

06-12-2013 10:51

GÜNGÖR Halil

Hello ?s there anybody who can help me about this

05-12-2013 11:58

Vasileios Kaounas Vasileios Kaounas

Found 05-12-13, Attica Greece, in soil, in forest

05-12-2013 23:25

Maren Kamke Maren Kamke

Hi everybody,I need your help with this asco. Apot

05-12-2013 12:58

Chris Johnson

Apothecia 250-300 microns across, greyish-white.

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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.