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13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

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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