Accès membres

Mot de passe perdu? S'inscrire

12-03-2011 11:32

Jean Pierre Dechaume Jean Pierre Dechaume

Sur fumier de cet hiver, en compagnie de Peziza ve

11-03-2011 22:59

Alain BRISSARD

Bonsoir à tous Nombreux petits discomycètes (0,

11-03-2011 18:28

Enrique Rubio Enrique Rubio

There has been success in the determination of thi

11-03-2011 03:09

Patrice TANCHAUD

Bonsoir, je suis bien conscient que je suis dan

11-03-2011 02:11

Miguel Ãngel Ribes Miguel Ángel Ribes

Another Hymenoscyphus, on Eucalyptus globulus agai

11-03-2011 01:51

Yannick Mourgues Yannick Mourgues

Bonjour. Je cherche une description de cette esp

11-03-2011 01:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night This small Hymenoscyphus is from Ten

11-03-2011 01:11

Yannick Mourgues Yannick Mourgues

B'soir à tous. Voici une espèce trouvée sur bo

10-03-2011 18:38

Marja Pennanen

Hello, finaly I had time to study this immersed

09-03-2011 18:31

FRANCIS FOUCHIER

Je cherche uns clé du genre Geopysis D'avance me

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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