Accès membres

Mot de passe perdu? S'inscrire

09-02-2026 11:42

Åge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

« < 1 2 3 4 5 > »
Pyrenophora?
Garcia Susana, 09-01-2014 11:54
hi all

I found this Pyrenomycete, growing on a herbaceous stem.
I think it may belong to the genus Pyrenophora, but I have no documentation to define the species.
Perithecia up to 600um diameter. With abundant hairs septate, thick-walled, apex rounded and size 400 x 12um.
Asci of 300 x 35um.
Spores, with 5 transverse septa and one or more longitudinal. Measured size up to 72 x 29um.


What do you think about it?
You can send information from the genre.


Thank you, greetings


Susana (Spain)

  • message #26687
  • message #26687
  • message #26687
  • message #26687
  • message #26687
Björn Wergen, 09-01-2014 13:32
Björn Wergen
Re : Pyrenophora?
Hi Susana,

rather looks like Pyrenophora phaeocomes. I am in a hurry, otherwise I would check myself. I will give you more information this evening.

Probably you can send me the photos ;)

regards,
björn
Garcia Susana, 09-01-2014 22:19
Re : Pyrenophora?
Hi Björn

Thanks, I send you photos. And I look forward to information about the genre.


greetings.


Susana

Björn Wergen, 10-01-2014 20:46
Björn Wergen
Re : Pyrenophora?
Hi Susana,

thanks for sending the photos. Your species fits well Pyrenophora polytricha, which is described as having hairy ascomata with 5 septated ascospores. Only the sizes of the ascospores are a bit larger than given in Wehmeyer 1961.

Furthermore I think the substrate is a gras, maybe Scirpus or Triticum. I am not a specialist in "gramines".

regards,
björn