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25-11-2025 14:24

Anybody recognize this strange anamorphic fungus on Sambucus nigra, Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10490522

24-11-2025 18:17

Hymenoscyphus sp
ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Possibly "Clavaria incarnata"?
Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

29-06-2016 18:06

Encoelia
Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

24-11-2025 15:23

Octospora similis auf Bryum caespiticium var. badium
Arnold Büschlen

Hallo, auf einer offenen Kiesfläche am Rande ein

18-11-2025 18:26

Literature search
David Malloch David Malloch

I am trying to locate the article, Müller, E. 195

23-11-2025 11:16

Allophylaria on Geum urbanum
Bohan Jia

Hi,  I found small discs growing on dead stem of

21-11-2025 10:56

Ascomycete on Humulus
Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

21-11-2025 15:22

asco 21-11-25
Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

21-11-2025 10:47

Mollisia sp.
François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

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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