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02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

13-02-2026 18:05

Margot en Geert Vullings

On February 9, 2026, we found these small hairy di

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

15-02-2026 04:32

Tomaz Vucko Tomaz Vucko

One more specimen that is giving me some descent a

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

14-02-2026 19:09

Valencia Lopez Francisco Javier

Hola colegasEstoi interesado en este articulo, Agn

14-02-2026 10:58

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

13-02-2026 18:02

Nogueira Héctor

November 2025 León (SPAIN) ID Help Hello! Thi

12-02-2026 21:34

patrice Callard

Bonjour, la face inférieure des feuilles ce certa

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Strange asco on Quercus acorn
Francois Guay, 27-10-2025 00:34
Francois GuayI found this strange species in Québec,Canada, growing on Quercus acorn. Does anyone know what it could be?
-Spores globose, 3.4–3.9 µm, appearing finely verrucose.

-Asci 8-spored, without croziers, IKI-.

-Stipe with large incrusted hairs.

Here’s the iNat link with photos and microscopy:


Thanks!
Viktorie Halasu, 28-10-2025 01:20
Viktorie Halasu
Re : Strange asco on Quercus acorn
Hello, 

very interesting! Check Roeslerina hispida. 
 
Viktorie
Francois Guay, 28-10-2025 13:27
Francois Guay
Re : Strange asco on Quercus acorn
Awesome! Thanks, Viktorie. Everything fits with Roeslerina hispida (Pithyella hispida*l). I just found out it was also found in North Carolina and sequenced. I wonder if it would really fall into Roeslerina.

Here is the North Carolina collection and sequence: https://www.inaturalist.org/observations/304736734