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23-04-2025 19:58

Francois Guay Francois Guay

I found this interesting Orbilia sp. one year ago

23-04-2025 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon Looking for Octospores / Lamprospo

22-04-2025 10:37

François Bartholomeeusen

Also found on April 18, 2025 on an old seed-pod of

22-04-2025 09:35

François Bartholomeeusen

Dear forum members, Can someone help me!On April

23-04-2025 12:13

Johannes Merz Johannes Merz

Hi,maybe someone has an idea regarding this asco/l

23-04-2025 10:47

Lothar Krieglsteiner Lothar Krieglsteiner

found first by my wife, some days ago, two days la

29-03-2025 05:45

Sebastien Basso

Hello, I'm conducting a mycological inventory in

22-04-2025 21:46

Francois Guay Francois Guay

I found this strange "discomycete" three days ago,

22-04-2025 14:19

éric ROMERO éric ROMERO

Bonjour à tous, Je sollicite votre aide et vos r

21-04-2025 10:52

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España), recole

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Orbilia sp. similar to O. pseudoaristata?
Francois Guay, 23-04-2025 19:58
Francois GuayI found this interesting Orbilia sp. one year ago in Quebec, Canada, growing on deciduous wood. I haven’t identified it to species yet, and I was wondering if the microscopy I did back then is enough to do so.
 

Substrate: deciduous wood

-Spore 9.53–12.83 × 2.03–3.09 µm

-Asci IKI–

Here’s the link to the photos: https://www.inaturalist.ca/observations/214881781

Thanks for your help!

François
Hans-Otto Baral, 23-04-2025 21:12
Hans-Otto Baral
Re : Orbilia sp. similar to O. pseudoaristata?
The substrate is clearly bark, not wood, but you may have used the word to cover both.

The apical thickening is very prominent, so O. pseudoaristata is excluded. The spores resemble O. clavuliformis, or maybe O. clavuliaristata.
Francois Guay, 23-04-2025 21:37
Francois Guay
Re : Orbilia sp. similar to O. pseudoaristata?
Yes, I used the term wood to cover both, but next time I’ll be more precise and specify wood or bark. Thank you Zotto, I’ll compare with those two species.
Hans-Otto Baral, 23-04-2025 21:39
Hans-Otto Baral
Re : Orbilia sp. similar to O. pseudoaristata?
It is actually so that the aristata group prefers to grow on bark, as some other tolerant Orbilias also do.