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02-05-2024 20:04

éric ROMERO éric ROMERO

Bonjour, Une question à propos de la réaction a

30-04-2024 16:22

François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

01-05-2024 23:22

Ethan Crenson

Hi all, Found late last week in a New York City p

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Robin Isaksson Robin Isaksson

Hi! Found in Sweden. Ascomata with haris, se

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F. JAVIER BALDA JAUREGUI

Hello, everyone.An idea for this pyreno, I found u

30-04-2024 16:59

Sylvie Le Goff

Bonjour. Petite pézize récoltée au sol en bordu

30-04-2024 19:43

Gernot Friebes

Hi!We observed this hyphomycete growing between le

30-04-2024 16:08

maurice pelissier maurice pelissier

BonjourTrouvé dans un torrent de montagne au Chir

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Mathias Hass Mathias Hass

Hi everyone, Found on attached branches of top pa

28-04-2024 18:05

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé ce matin ce

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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

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  • message #31222
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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