... in moist chamber from Portugal.
As the fungus seems to be completely IKI-negative, it seems to be no Cryptodiscus or Karstenia, although the macroscopical appearance and the spores would lead to e.g. Karstenia rubi (not fully fitting also otherwise).
The spores are fully guttulate in living state (first pictures in water - I want to apologize that my pictures are a bit a wild mixture of preparations in H2O, KOH, Kongo-NH3, Baral after H2O and Melzer), showing their septation in dead stage (later pictures). There seem to be between (9) 13-17 septa. The spores are thin and clavate, with a thicker end, and measure about (40 - unriper spores partly set free) 50-65/2-2,5(3) µm. The paraphyses and the periphyses are filiform and a bit irregularly swollen at the apex. The excipulum is of textura angularis.
As I said: no (blue) reaction with Baral or Melzer, also not after KOH-pretreatment. The ascus-apices are a bit conical and maybe a bit more dextrinoid than other tissues. The asci bear croziers at their bases.
Who does have an idea?
Best reagards, Lothar