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18-05-2026 19:49

William Slosse William Slosse

Good evening all,recently I found a portion of a S

18-05-2026 12:43

Sylvie Le Goff

Bonjour à tousPuis je avoir votre aide sur ce que

18-05-2026 10:13

Lieve Deceuninck Lieve Deceuninck

Dear forum members,I identified this as the teleom

17-05-2026 22:09

éric ROMERO éric ROMERO

Bonjour tous, Je sollicite vos avis pour ce Molli

17-05-2026 19:05

Thomas Flammer

I have found this tiny 200 ym cup shaped apothecia

17-05-2026 16:41

Margot en Geert Vullings

We found this Lachnum on an old Rubus stem.Fruitbo

05-04-2026 22:46

Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

15-05-2026 13:33

Sylvie Le Goff

Bonjour à tousJe serais très reconnaissante enve

16-03-2011 14:31

roman vargas alberto

Hi. I would like some opinion about this Peziza

14-05-2026 05:36

Ethan Crenson

Hi all,  I haven't paid much attention to Lachnu

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Endoxyla s.l.?
Stefan Blaser, 10-12-2024 16:40
Hello everybody,

Any help on this one would be much appreciated:

Ecology: decorticated hardwood, likely Acer pseudoplatanus

Macro:

Perithecia in groups of variable size immersed in the wood. The surface area around the emerging ostioles is blackened. Ostioles are minutely umbilicate. The wood surrounding the perithecia is not conspicuously discoloured and there is no black line in the wood. Perithecial diameter 0.3-0.6 mm, necks 0.2-0.6 mm.
Micro:
Spores centrally septate, greenish brown, smooth, with a large guttule in each cell and a rather well visible germ Pore on one side, 11-14.5 x 5.0-5.6 (-6.0) µm. Asci 110-140 x 6-7 µm with an inconspicuous but visible apical apparatus that shows no iodine reactions.

Best wishes and many thanks,

Stefan
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Jacques Fournier, 10-12-2024 17:04
Jacques Fournier
Re : Endoxyla s.l.?
Hi Stefan,
I think everything in your excellent images matches with Pseudovalsaria ferruginea.
For differences with Endoxyla you can refer to
Untereiner et al Mycologia, 105(3), 2013, pp. 564–588. DOI: 10.3852/12-326

All the best,
Jacques

Stefan Blaser, 10-12-2024 17:36
Re : Endoxyla s.l.?
Many thanks, Jacques!

I should have known the species, but the nearly lacking stroma confused me too much.

The other collection looked like this...
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Jacques Fournier, 10-12-2024 17:51
Jacques Fournier
Re : Endoxyla s.l.?
the first collection is more typical. The other stroma likely became superficial by disintegration of the surrounding strongly rotten wood. Tricky!