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23-06-2025 04:03

Sulfur yellow tiny asco on hardwood
Francois Guay Francois Guay

Hi, I found this tiny sulfur yellow asco growing o

23-06-2025 13:25

Subalpine Scutellinia
Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

22-06-2025 13:52

Peziza acroornata - Literature request
DirkW DirkW

Dear friends,anyone out there with this paper?:DOU

26-05-2025 18:09

Cytospora spec./ Valsa spec.
Henk Remijn

Good day,In a burned forest near Hulst on the bord

21-06-2025 22:27

Calycina?
David Chapados David Chapados

Hi,Is this a Calycina? C. herbarum?Growing on an h

20-06-2025 08:33

Ascomycete on a herbaceous stem.
Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

11-06-2025 16:26

Literature request
Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

18-06-2025 19:24

Literature request
Bernard Declercq Bernard Declercq

Good evening,On Oenanthe aquatica we collected  a

17-06-2025 14:23

¿Hyaloscypha?
Josep Torres Josep Torres

Hello.A probable Hyaloscypha from last June 1st, s

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No idea...
éric ROMERO, 05-06-2024 21:57
éric ROMERO
Bonjour,

Toute piste sera la bienvenue...

Apothécie n'excédant pas 0,8mm, blanc pur, poils courts peu visibles, courtement stipité (0,2 à 0,3mm), bien « ancré » dans le support, des éléments de celui-ci y étant arrachés lors du prélèvement.

Asques octosporés cylindriques hyalines à crochets +, IKI -, 55-70 X 8,5-9,2µ.


Paraphyses hyalines, filiformes à légèrement lancéolés, se divisant à divers niveaux, septées, parfois guttulées, 40-50 X 2-3µ.


Excipulum ectal type textura prismatica.


Poils hyalins, septés (3-4 septa), guttulés, incrustations hylines et « légères » sur la paroi externe, sans modification après traitement au KOH.


Spores hyalines, cylindriques/elliptiques à réniformes, 7-9 X 2,5-3,6µ.


Les apothécies montrent un aspect « glacé » sous le microscope si l'on fait attention à ne pas « l'écraser » lors de la préparation.
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Hans-Otto Baral, 06-06-2024 08:41
Hans-Otto Baral
Re : No idea...
Could you please tell us the substrate and origin of the collection?

Is it possible to give a range of mature apothecia, e.g. 0.3-0.8 mm?

It seems the dead immature asci have a slight apical wall thickening, which disappears in mature dead asci.

The hairs have a little granulation but are principally smooth. Psilocistella would be a name to apply what comes in my mind.
éric ROMERO, 06-06-2024 14:22
éric ROMERO
Re : No idea...
Hello,

Thanks zotto, I forgot those important details...

Find in a biological reserve in Aslace (Vosges - France),  alt 980m, on softwood (Picea or Abies) very wet (imbu en Français).

The matures apothecia I studied were between 0,5 - 0,8 mm. I don't know if there were smaller ones, but I can have a look.

It will be probalbly sequenced for the inventory of the reserve.

éric
Hans-Otto Baral, 06-06-2024 17:23
Hans-Otto Baral
Re : No idea...
Thanks! I just saw a little similarity with Ambrodiscus pseudotsugae but the illustration I have once made differs in the ascus wall (folder Hyaloscyphaceae).
éric ROMERO, 07-06-2024 17:50
éric ROMERO
Re : No idea...
Thanks a lot, éric.