11-03-2026 17:36
Michel Hairaud
Bonjour, Je cherche des indices pour cette réc
12-03-2026 19:44
Enrique Rubio
Hi to everybody.Can you give me any suggestions ab
08-03-2026 14:05
Thierry Blondelle
Bonjour à tous,Sur 3 récoltes supposées de H. l
12-03-2026 15:45
Åge OterhalsDear forum,I found this small discomycete on a ver
11-03-2026 16:48
Bruno Coué
Bonjour, je serais heureux d'avoir votre avis sur
11-03-2026 14:14
Gernot FriebesHi,I would like to share a collection of Scopinell
Diaporthale on leaves of Ulmus glabra
Enrique Rubio,
21-01-2023 19:23
Dear allI would like to know your opinion about these small, rounded, blackish, more or less spherical, very small (up to 0.15 mm in diameter), most probably ostiolate but without necks, immersed in overwintered leaves of Ulmus glabra. From its characters it could perhaps fits in the genus Gnomoniella and perhaps in Gnomoniella carpinea although its spores are somewhat wider than those of this species.What do you think?
Many thanks again.
Sorry, I just saw that Gnomoniella carpinea is a synonym of Apiosporopsis carpinea, a fungus that we usually collect on carpinus leaves near the site of the find.
Alain GARDIENNET,
22-01-2023 07:22
Re : Diaporthale on leaves of Ulmus glabra
Hi Enrique,
Indeed, it looks like Apiognomonia carpinicola.
Monod reported hosts other than Carpinus : other Betulaceae (Alnus, Crapinus, Ostrya), but also Acer rubrum and Castanea dentata. I personnaly found it on Corylus maxima.
So, why not Ulmus glabra ?
Best wishes,
Alain
Indeed, it looks like Apiognomonia carpinicola.
Monod reported hosts other than Carpinus : other Betulaceae (Alnus, Crapinus, Ostrya), but also Acer rubrum and Castanea dentata. I personnaly found it on Corylus maxima.
So, why not Ulmus glabra ?
Best wishes,
Alain
Enrique Rubio,
22-01-2023 10:28
Re : Diaporthale on leaves of Ulmus glabra
Merci Alain. In fact I have found it on Acer saccharinum too.