06-04-2026 21:36
Viktorie Halasu
Hello, could anyone please send me the article wi
06-04-2026 19:40
David Gibbs
Help with this one much appreciated, on rotting Fa
06-04-2026 11:07
Louis DENYBonjour forum, Trouvé sur bois de feuillu très d
06-04-2026 16:24
Juuso ÄikäsLast Tuesday I found some tiny white Helotiales gr
05-04-2026 20:40
Robin Isaksson
Hi!Found i Japan on bark of Abies sp. Spores 35-4
06-04-2026 08:15
Lothar Krieglsteiner
some days ago, on the lower surface of leaf of Que
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.