Good evening forum members,

Can this be Hyalorbilia berberidis? With orbiliamycetes I feel worried because I then scan the limits of my microscope's capabilities.

Macroscopy: the ascomata have a diameter of 350 to 400 µm are young flattened spherical and later flattened dish-shaped, young light orange later light yellow-grey; scattered sessile on the substrate
Substrate: an old, decayed polyporus on a fallen branch of fagus sylvatica. In the vicinity grow some fruiting bodies of a slime mold namely Physarum spec. The ascomata grow both on the polyporus and on the heavily decayed wood.

Microscopie: (all dimensions of fresh material in water).

Asci : 9,43-13,43 x 1,16-1,4 µm; hyaline, cylindric-clavate, 8-track, inamyloid, rounded top covered with a gel layer, base short, firm and forked, arising from croziers.

Spore: 9,43-13,43 x 1.16-1.4 µm Q= 8,9; hyaline, narrowly fusoid, curved with sharp ends and vacuolar bodies in both poles;

Paraphyses : difficult to distinguish, same size as as asci and they do not exceed the asci, hyaline

Excipulum: hyaline with texture angularis/globulosa

Thank you for your help,

François Bartholomeeusen