Hello again,

it seems as if there is an infinite number of Pyrenomycetes, every time I check out a finding with the microscope, it is something new. This time it's something strange on dead Salix twigs.

Fruitbody a single perithecia without a stroma, breaking the cortex, after cutting you can see some whole perithecia growing on the wood and not embedded into the cortex, black, 0,1-0,2 mm.
Spores 12-15x3-4,5µm, perfectly fusiform, mature spores mostly with a central septation, hyaline, with some minor guttules in each cell, smooth. Asci 90-110x9-11µm, with 8 spores in uniseriate arrangement, short stalked, unitunicate. Paraphyses not seen.

The spores seem to have a gel sheath, especially when they are immature (in the ascus), mature spores don't have something like this.

Perhaps someone can help me with this "mysterious" fungus.

regards and many thanks again,
Kazuya