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Bonjour tous, J'ai trouvé sur pétiole de Fraxin

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Bonjour,Je recherche la description et la planche

30-07-2025 20:52
Bohan JiaHi together, I've been looking posts in AscoFra

30-07-2025 10:12

Bonjour à toutes et tous,Pourriez-vous m'aider à

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Dear collegues,today I found on a very fresh fire

30-07-2025 18:06
Stefan JakobssonOn a decorticated twig of Alnus incana on moist so

13-06-2025 09:41
Hello.A cerebriform ascomycete sprouting scattered
Unknown beheaded stubble lichen
Erik Van Dijk,
07-02-2022 19:22
The spores were 45-50 um by 3-4 um.
See the following link.
https://waarneming.nl/observation/233387391/
Other observers in the Netherlands have found the same unknown species. See:
https://waarneming.nl/observation/134021261
https://waarneming.nl/observation/223933166/
Does anyone has any idea?
Adam Polhorský,
07-02-2022 20:40
Re : Unknown beheaded stubble lichen
I saw similar/same fungus recently, so I think I can help.
Look here https://doi.org/10.1139/b85-051
The best fit for your fungus seems Morrisographium boudieri.
Conidia from my collections often exceeded 50um so I decided for M. ulmi.
Look here https://doi.org/10.1139/b85-051
The best fit for your fungus seems Morrisographium boudieri.
Conidia from my collections often exceeded 50um so I decided for M. ulmi.
I think only M. boudieri is known from Europe, however I'm unsure of boundaries between these 2 species. Here are some pics https://drive.google.com/drive/folders/1a5WOxiTO_-fRC_ZTJqoL_CWG9EQta1Dg?usp=sharing
I saw it on Acer campestre and Cornus mas bark, what could be your substrate?
Erik Van Dijk,
08-02-2022 20:02
Re : Unknown beheaded stubble lichen
Thank you for you response.
It looks indeed rather similar. My substrate was willow.
The entire genus Morrisographium is until not found in the Netherlands, but these tiny fungus might easily be overlooked.
It looks indeed rather similar. My substrate was willow.
The entire genus Morrisographium is until not found in the Netherlands, but these tiny fungus might easily be overlooked.