Accès membres

Mot de passe perdu? S'inscrire

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

« < 1 2 3 4 5 > »
Diaporthale on leaves of Ulmus glabra
Enrique Rubio, 21-01-2023 19:23
Enrique RubioDear all
I 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.
  • message #74978
  • message #74978
  • message #74978
Alain GARDIENNET, 22-01-2023 07:22
Alain GARDIENNET
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
Enrique Rubio, 22-01-2023 10:28
Enrique Rubio
Re : Diaporthale on leaves of Ulmus glabra
Merci Alain. In fact I have found it on Acer saccharinum too.