הזיהויים של wildlifereliant

On a thick dead branch in oak shade
I see no midrib. The leaves are 1 mm with a short sharp tip. The capsules are vertical. The two (only one pictured) I put under 'scope (50x =>32 microns/optical unit) had lost their calyptrae ) leaving a ragged fringe of peristome teeth. This is the first time I've seen the latter. The stalks are 1.5 to 2 cm.
This looks similar to the moss in my preceding observation https://www.inaturalist.org/observations/192451434, which in the last few hours was suggested to be IDed in genus Leskea.

The leaves of the preceding observation, however, are shorter and more dagger-shaped than those in this observation.