21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
21-11-2025 11:52
Jean-Luc RangerBonjour à tous, on voit toujours 2 espèces areni
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
Coelomycetous on Populus nigra leaves
Enrique Rubio,
26-11-2021 13:43
Do you have any idea about this coelomycetous fungi growing on Populus nigra leaves?I don't know the conidiogenesis but the hyaline and osteiform conidia seem very peculiar.
Many thanks in advance
Paul Cannon,
26-11-2021 13:57
Re : Coelomycetous on Populus nigra leaves
The conidia look like those of Leptodothiorella, microconidial/spermatial anamorphs of Guignardia and Phyllosticta. There is a species Phyllosticta populina that is occasionally recorded, but I don't know it and I'd be hesitant to identify without seeing macroconidia. Hope this gives you a direction to search in.
Best wishes
Paul
Martin Bemmann,
26-11-2021 13:58
Re : Coelomycetous on Populus nigra leaves
Hi Enrique,
this reminds on spermatia of Phyllosticta.
Regards
Martin
Enrique Rubio,
26-11-2021 14:15
Re : Coelomycetous on Populus nigra leaves
I have been looking at images of spermatia from other Phyllosticta and I see that they are very similar.
Many thanks Paul and Martin.
Many thanks Paul and Martin.