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21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

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Brown anamorph on lichen (Xanthoria parietina)
François Bartholomeeusen, 14-07-2021 10:19
Dear forum members,

This week I received, by email, four photos of a find on a lichen (Xanthoria parietina). The round conidia (?) have a diameter of 11 to 13 µm. I myself have too little knowledge of lichens or zygomycota. Can someone put my friend on the right track for determination of this brown anamorph? I think the marked areas on photo 03 and 05 are contamination (maybe Trematosphaeria wegeliniana).
Any hints are welcome, thank you very much,

Francois Bartholomeeusen

 

  • message #69453
  • message #69453
  • message #69453
  • message #69453
Hans-Otto Baral, 14-07-2021 10:25
Hans-Otto Baral
Re : Brown anamorph on lichen (Xanthoria parietina)
I remember the genus Xanthoriicola for that.
Josep Torres, 14-07-2021 20:35
Josep Torres
Re : Brown anamorph on lichen (Xanthoria parietina)
Quizás encuentres la solución aquí:

http://forum.pilze-bayern.de/index.php?topic=1670.0

Saludos cordiales
François Bartholomeeusen, 14-07-2021 21:38
Re : Brown anamorph on lichen (Xanthoria parietina)
Hello Zotto and Josep,

Thank you both for your incredibly quick response and wonderful pointers to a solution! Xanthoriicola physciae has conidia with a diameter of about 5 µm (for this find that's +/- 12 µm) and the appearance of the fungus is too different from the linchenicolous fungi you suggest. I myself do not have the find in my possession. It seems best to give the solutions, offered by you, to the finder so he can better judge the material.


I will report any reaction from the finder on the forum.
Your cooperation is heartwarming, thank you both again!


François

Hans-Otto Baral, 14-07-2021 22:41
Hans-Otto Baral
Re : Brown anamorph on lichen (Xanthoria parietina)
Ah, then it could be a myxomycete, I did not look close enough at first.