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11-04-2026 15:45

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

11-04-2026 10:10

Michel Hairaud Michel Hairaud

Dear Ascofrance members, here is some very good ne

10-04-2026 23:22

Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

09-04-2026 15:25

Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Thomas Læssøe

https://svampe.databasen.org/observations/10587061

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White asco on Fagus grandifolia leaf
Francois Guay, 03-10-2025 22:17
Francois GuayHi everyone,
 

I found this white, star-shaped asco on a Fagus grandifolia leaf in Quebec, Canada.

Spores: 15–16.6 × 3.5–4.3 µm

Asci: IKI+

Here’s the iNat link with photos and microscopy:


Any idea what it could be?

Thanks!
Hans-Otto Baral, 04-10-2025 08:41
Hans-Otto Baral
Re : White asco on Fagus grandifolia leaf
I do not understand the macroscopy. Are the apos stalked or sessile and what about the toothed receptacle? What are the teeth composed of?

Microscopy recalls H. caudatus agg.
Francois Guay, 05-10-2025 21:28
Francois Guay
Re : White asco on Fagus grandifolia leaf
Yes, the apothecia were short-stalked. I think the "star shape" is just an unusual shape; next to them were some other apothecia with a regular form like other Hymenoscyphus. The teeth were just like the rest of the hymenium.
Thanks Zotto