19-05-2026 10:27
Patrice TANCHAUDBonjour, récolte récente sur terre retournée i
19-05-2026 12:55
Hardware Tony
After checking Gminder and Otto's library I cannot
18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
19-05-2026 14:56
Åge OterhalsI found this white cushion-formed ascomycete on ro
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
Gnomoniaceae
David Chapados,
06-04-2026 15:04
Hi! 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!
https://www.inaturalist.ca/observations/347616981
Thank you!
Alain GARDIENNET,
06-04-2026 21:34
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
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
Re : Gnomoniaceae
Bonjour Alain!
Il sera effectivement envoyé pour séquençage. Merci pour les commentaires!
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
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.