25-01-2026 23:23
Tomaz Vucko
Hello! I found this species that resembles Delitsc
05-02-2026 15:07
Vasileios Kaounas
Found on a fallen needle of Pinus halepensis, diam
05-02-2026 06:43
Stefan BlaserHello everybody, Any help on this one would be mu
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
small ascomycete on Alnus leaf
Lothar Krieglsteiner,
17-04-2020 17:26
... two days ago, on a skeletized leaf of Alnus glutinosa near Hintersteinenberg (Germany, Baden-Württemberg). The ascomata are very small and black, a bit flattened and immersed in the epidermis of the leaf - there is no ostiolum.I think it should be a Diaporthales, I do not find a fitting species.
The spores are about 11-15/2-3 µm, the asci about 50-60/8-10, with a strongly developed (very good visible in phloxine, but inamyloid) apical apparatus.
Who can provide me with a hint?
Best, Lothar
Alain GARDIENNET,
17-04-2020 21:18
Re : small ascomycete on Alnus leaf
Hi Lothar,
It's Gnomonia alnea.
Alain
Lothar Krieglsteiner,
17-04-2020 21:43
Re : small ascomycete on Alnus leaf
Hello Alain,
thank you very much!
Best regards, Lothar
thank you very much!
Best regards, Lothar