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22-05-2026 10:59

Leptosphaeria? sur Phragmites
Nicolas VAN VOOREN Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 17:47

Mollisia on Juncus
Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

20-05-2026 21:49

Lachnum on Juncus -> Lachnum pudicellum
Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

21-05-2026 17:01

Recherche de document
Pierre Repellin

Bonjour à toutes et à tous,Je recherche l'articl

20-05-2026 20:08

pyreno on Fraxinus
Andreas Millinger Andreas Millinger

Good evening,another quite distinctive find from M

20-05-2026 12:57

unknown semi-aquatic objects
Ingo Ibelshäuser Ingo Ibelshäuser

Hello everybody, on decayed hardwood e.g. Quercus

20-05-2026 18:15

cf Godronia sp.
Moreno Miriam

Hello! I am working on my master's thesis on the d

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

17-05-2026 22:09

Mollisia sp
éric ROMERO éric ROMERO

Bonjour tous, Je sollicite vos avis pour ce Molli

19-05-2026 19:47

Xylariaceae?
Andreas Millinger Andreas Millinger

Hello dear community,found this species the second

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Help with a black fungus
Gonçalo Marques, 11-11-2021 10:43
Hi!

I'm new here and this is my first post :)

I have found a black fungus in Lisbon, Portugal, and I'd like ask if someone could point me to what it could be.

Cheers

Gonçalo
  • message #70617
  • message #70617
  • message #70617
Hans-Otto Baral, 11-11-2021 10:55
Hans-Otto Baral
Re : Help with a black fungus
Hi

good would be to tell us the name of the tree. The resolution is a bit low, are these stipitate apothecia?

Finally, without microscopy we can hardly give it a name.
Gonçalo Marques, 11-11-2021 11:18
Re : Help with a black fungus
Hi

The tree is a Viburnum tinus.

The ASCOfrance did not allow me to upload the photos with the original resolution. I had to use a site to resize them to lower than 150Kb (the first time I did it).
If you have better suggestions of ways to resize the photos without loosing so much resolution, that would be nice.

I don't have a microscope. So if that is a necessity, I'll have to leave at that.

Thanks,

Gonçalo
Hans-Otto Baral, 11-11-2021 11:27
Hans-Otto Baral
Re : Help with a black fungus
If you have a image editing program you should be able to cut your images and upload only the part with ascomata, then they appear in higher resolution.

Can you exclude a lichen?
Viktorie Halasu, 11-11-2021 12:59
Viktorie Halasu
Re : Help with a black fungus
Hello Gonçalo,
larger images can be uploaded as files instead, the size limit is higher for files (I don't know how high exactly, a question for Christian?). 
Viktorie