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11-03-2026 17:36

Help for Genus and Species ID
Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 19:44

Ostropoloid fungus on Hibiscus
Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 15:45

Dematioscypha cf. olivacea
Åge Oterhals

Dear forum,I found this small discomycete on a ver

12-03-2026 16:17

Mollisia atlantica
Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

Octospora
David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Saccobolus minimoides ?
Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Scopinella on Dryas octopetala
Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Thyridaria sp.
Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

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Small white dics on birch
Margot en Geert Vullings, 10-01-2024 17:28
On decayed birch on the ground we saw these very small white discs, no stem and they appear to have no hairs.

Spores measured in water:
Me = 11.3 × 3.8 µm ; Qe = 3


Ascus measured in water:
Me = 61.9 × 10 µm ; Qe = 6.2
IKI+


Paraphyses septated, cylindrical, slightly thickened towards the apex, without VBs.


We were thinking towards Hyaloscypha and were suggested Hyaloscypha minuta (Parorbiliopsis) , a species without hairs, but with reaction IKI neg.
Does anyone have an idea about this?


Thanks in advance,
Margot&Geert

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Hans-Otto Baral, 10-01-2024 18:19
Hans-Otto Baral
Re : Small white dics on birch
I would also suggest Hyaloscypha. Croziers seem to be absent. In my head I have no idea.
Margot en Geert Vullings, 10-01-2024 18:49
Re : Small white dics on birch
Thank you Hans-Otto, do you think it could be H. minuta?
We think we saw no croziers.
Hans-Otto Baral, 10-01-2024 21:41
Hans-Otto Baral
Re : Small white dics on birch
H. minuta is always inamyloid, and I don't think that such variation occurs within this species.
Michel Hairaud, 11-01-2024 09:54
Michel Hairaud
Re : Small white dics on birch
Bonjour Margot et Zotto, 
I would also have thought of H. minuta for the macro aspects along with spores. But for the IKI reaction
Did you observe any marginal hair ? I can't see any on your pics. 

AmitiésMichel
Margot en Geert Vullings, 11-01-2024 17:07
Re : Small white dics on birch
Thank you Hans-Otto and Michel, it will stay with Hyaloscypha.
We didn't see any hairs.

Kind regards,
Margot &Geert