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17-05-2026 19:05

Thomas Flammer

I have found this tiny 200 ym cup shaped apothecia

17-05-2026 16:41

Margot en Geert Vullings

We found this Lachnum on an old Rubus stem.Fruitbo

05-04-2026 22:46

Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

15-05-2026 13:33

Sylvie Le Goff

Bonjour à tousJe serais très reconnaissante enve

16-03-2011 14:31

roman vargas alberto

Hi. I would like some opinion about this Peziza

14-05-2026 05:36

Ethan Crenson

Hi all,  I haven't paid much attention to Lachnu

10-05-2026 23:17

Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

11-05-2026 12:32

Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

13-05-2026 15:26

François Freléchoux François Freléchoux

Bonjour,Voici une récolte faite il y a quelques j

12-05-2026 15:41

Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear Ascolovers, especially interested in Pezizale

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Gnomoniaceae
David Chapados, 06-04-2026 15:04
David ChapadosHi! 

Could someone help me identifying this specimen? I was thinking Plagiostoma / Apioplagiostoma, but can't find one that matches the spores I saw. 

Growing on overwintered Acer leaves, Quebec, Canada. 
Ascoma, 458,7-487,0 x 267,3-314,1um.

Asci inamyloid, 62,2-75,6 x 14,4-15,9um.

Spores, submedian septa, polar appendages, 18,7-21,2 x 6,4-6,7um, appendages 6,7-7,3 x 5,1-5,9um.

https://www.inaturalist.ca/observations/347616981

Thank you!
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  • message #85033
  • message #85033
Alain GARDIENNET, 06-04-2026 21:34
Alain GARDIENNET
Re : Gnomoniaceae
Hi David,
Some lovely photos – well done. In particular, you've captured the appendages beautifully in the India ink; that's some excellent work. Like you, I would conclude that this is a species belonging to the genus Apiognomonia (or perhaps Apioplagiostoma). It is probably an undescribed species. Acericolous species are different. It would be great if you could confirm this using molecular data.Best wishes,
Alain
David Chapados, 06-04-2026 21:58
David Chapados
Re : Gnomoniaceae
Bonjour Alain! 

Il sera effectivement envoyé pour séquençage. Merci pour les commentaires!
Adrian Carter, 06-04-2026 23:16
Re : Gnomoniaceae
Perhaps Apiognomoniia acerina. See Sogonov et al. 2008. Leaf inhabiting genera of Gnomoniaceae. So far not reported from N. America as far as I know.
Alain GARDIENNET, 07-04-2026 21:41
Alain GARDIENNET
Re : Gnomoniaceae
I had looked into A. acerina. But it seems that this species is different. Within this family, it is quite common for European species to differ from their North American counterparts. That is why sequencing would be helpful.