05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
04-07-2025 20:12
Josep Torres
Hello.A fungus growing on the surface of a trunk o
20-06-2025 08:33
Josep Torres
Hello.Small, blackish, mucronated surface grains s
28-06-2025 16:00
Josep Torres
Hello.A tiny fungus shaped like globose black grai
04-07-2025 12:43
Castillo Joseba
me mandan el material seco de Galicia (España)
03-07-2025 18:40
Castillo Joseba
me mandas el material seco de Galicia (España) re
03-07-2025 20:08
Francois Guay
I found this interesting yellowish asco growing on
01-07-2025 23:37
Josep Torres
Hello.A Pleosporal symbiotic organism located and
interesting Lophiostoma on Fagus
Björn Wergen,
15-04-2012 18:31
Hi 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
Alain GARDIENNET,
15-04-2012 23:16
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
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
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
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