Hola Enrique,
sorry I don't have it and I would like to have it if someone happens to provide it.
Maybe Adrian since he has the fungus?
Jacques

HI jacques

I have a very interesting fungus sent by F.J. Balda from Navarra on submerged wood of Fagus sylvatica. It seems to be close to Submersisphaeria or Jobellisia but I did'n finish to study it.

Mature ascospores are fuscous greenish with darker band of pigment at the 1 septum and they seem to have apical minute pores at the poles without caps or sheaths. Asci cylindrical, 8-spored, uniseriate, with a massive apical refringent apparatus Melzer negative. Ascomata superficial to subsuperficial, roundish, blackish, papilate, glabrous with an inner layer orange.

Have you some idea?

 

I guess I have the same idea as you about Jobelisia viridifusca? The orange layer of the peridium is a very distinctive character that has not been reported in Submersisphaeria. The later also has a well developed neck.
A thin section of the peridium would be much informative. Mind your fingers!
Jacques

Thanks, Jacques. I think so: Jobellisia seems to be a good genus for it, but the larger ascospores 18-23 x 5.5-6 don't fit well with viridifusca. Could be an undescribed species of this genus. If you like it,  I'll send you my pics and material

I will be happy to see Javier's fungus Enrique! just send it over
Jacques

OK., Jacques. Now I'm sure this is a Jobellisia. I'll send you my pics by Wetransfer

Thanks again