Accès membres

Mot de passe perdu? S'inscrire

02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

« < 1 2 3 4 5 > »
Trichophaea genus?
Rodríguez Borja, 12-09-2014 15:16
Rodríguez BorjaHi to all!

I need your help with this fungus that appears directly on the ground in a beech forest. (Páramo, Puerto de la Ventana, Asturias, Spain. 13-VIII-2014, 1400 msm).


Apothecia up to 7-8 mm, with white or gray hymenium with small brown hairs.


Asci up to 210?m, 8-spored and with croziers. Paraphyses up to 225?m, 2-3 septa and 10-12 ?m apex. Ascospores hyaline, roughened walled spores and smooth walled in young ones, broadly fusiform and with one big guttule. Me: 18-20 (22) x 12-13 (14) ?m.


I thought something close to Trichophaea spp. For example, T. woolhopeia but it is a species with fine warts in young spores. Another closely related species is T. velenovskyi with more fusiform spores and other ornamentation, equal to T. paludosa group.


Study with rehydrated material in isotonic water and blue lactophenol.


Maybe someone knows something more..


Best regards,


Borja

  • message #31222
  • message #31222
  • message #31222
  • message #31222
René Dougoud, 12-09-2014 16:32
Re : Trichophaea genus?
Cher Collègue,

je ne vois pas autre chose que T. woolhopeia (Cke & Phill.) Boud. Cependant, êtes vous sûr que les ascospores sont fusiformes (ce n'est pas le cas sur vos photos) et qu'elles sont verruqueuses ?

René
Ron Bronckers, 12-09-2014 17:07
Re : Trichophaea genus?
Hello,

I agree with René that this is indeed T. woolhopeia.
Normally the broad spores of this species are smooth but in some cases a "false ornamentation" can occur. I have described this phenomenon in my article (see added pdf). The epispore is loosening from the sporewall for some reason and it looks like an ornamentation but it's not cyanophilic. I have seen several similar collections from Belgian, Germany and Spain.

Best wishes,
Ron
Rodríguez Borja, 12-09-2014 17:12
Rodríguez Borja
Re : Trichophaea genus?
René: You're right, in the photos spores are more sllipsoids than fusiform (more in adults ones). I found twice T. woolhopeia but the ornamentation was by warts, this collection presents "wrinkled" spores.. May be the "false ornamentation" in this species..?

Ron, I was answering when I recieved your comment. I think you are right! Its an very variable species indeed!

Thank you very much!

Borja

Ron Bronckers, 12-09-2014 18:52
Re : Trichophaea genus?
Hi Borja,

Did you really find two collections of T. woolhopeia with ornamented ascospores?
This probably is another species of Trichophaea or you did find something nobody else has ever seen before because the ascospores of T. woolhopeia are smooth.
Do you have a good description of these finds or dried material to examine?

Kind regards,
Ron
Rodríguez Borja, 12-09-2014 19:14
Rodríguez Borja
Re : Trichophaea genus?
Hi Ron,

Yes I have two more collection, far from this one, where I found this carasteristic. Not the same because the ornamentatition is formed by fine warts but similar. I´ll send you some more information in privately.

Borja