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20-05-2026 17:47

Mollisia on Juncus
Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Rebentischia-like von Acer campestre
Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)
Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus
Gernot Friebes

Hi,I am curious to hear your opinion on this mater

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 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

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interesting Lophiostoma on Fagus
Björn Wergen, 15-04-2012 18:31
Björn WergenHi all,

I have found a very interesting lophiostomoid fungus growing on decorticated Fagus branch. It has small 0,3-0,6 mm broad perithecia with a typical lophiostoma-ostiolus. Spores are 24-29x4-4,5µm, first with a medium single septa, then with 3-4 septations, hyalin, mature spores very pale brown, with a distinct hyaline sheath surrounding a whole spore and acute endings. 
Asci 70-100x6-8µm, with 8 +/- biseriate spores.

Substrate: Fagus (or Quercus, but I think it was Fagus, decorticated at all).

What can this be? I have tried Chesters&Bell and Barr, watched some photos made by Alain and so on, but there is no matching species. Macroscopically Navicella pileata is similar, but it has very different spores...

I hate mycology...sometimes :D

regards,
björn
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Alain GARDIENNET, 15-04-2012 23:16
Alain GARDIENNET
Re : interesting Lophiostoma on Fagus
Hi Bjorn,
It looks like Lophiotrema neohysterioides, but ascospores of this species are given without sheath.  And your one seems to have a L/l more important.  Perhaps more closed to Lophiostoma vigheffulensis ? Else, Ive no idea.
Good research !
Alain
Björn Wergen, 16-04-2012 00:46
Björn Wergen
Re : interesting Lophiostoma on Fagus
Hi Alain,

I have the same name on my list: L. vigheffulensis (between L. vigheffulensis and L. winteri). But the sheath is something very strange for this genus, isn't it? 

Thanks a lot.

regards,
björn