Favoritos de ashblake

From the top (second photo) these look like Bisporella citrina, relatively common in my area. But as far as I know Bisporella citrina does not have a stem. Perhaps this is some type of Chloroscypha or Hymenoscyphus?

Found on a piece of well decayed tan oak log.

Micrograph shows pileipellis with corkscrew cystidia, spores and a basidium 1000x.

Cheilocystidia fusiform.

Spores from the cap / gills measure:

(8.5) 8.6 - 10 (10.4) × (2.9) 3 - 3.3 (3.4) µm
Q = (2.8) 2.82 - 3.29 (3.3) ; N = 12
Me = 9.4 × 3.1 µm ; Qe = 3