E-Flora BC: Electronic Atlas of the Flora of British Columbia

Summary:
Fruitbodies are tiny, woolly-appearing, whitish spheres on rotten wood with a blackish papilla at the top. Microscopic characters include yellowish cylindric ascospores often with transparent pointed appendages at the ends, biseriate in an 8-spored ascus that has a refractile body at the apex. The description is derived from Breitenbach(1).

There is a collection from BC by O. Ceska at the University of British Columbia. The accompanying photograph was taken in WA, but distribution is widespread including Europe.

Fruiting body:
fruitbody 0.04-0.06cm, spherical to ovoid, "resting directly on the substrate or somewhat embedded in it and surrounded by a gray-whitish flaky hyphal tissue, surface covered with a furfuraceous gray to brown-white hyphal feltwork", the hyphae tissue also described as "furfuraceous-scurfy"; "the perithecial beak is visible at the top as a blackish papilla"

Microscopic:
spores 36-40 x 4-5 microns, cylindric, "bent, smooth, yellowish", with droplets, "often with pointed hyaline appendages", biseriate in the ascus; asci 8-spored, 180-210 x 16-22 microns, iodine negative, "with a distinct refractile body at the apex"; no paraphyses observed; tomentum "of smooth septate hyphae" about 4 microns wide