Thanks to @earley_bird for pointing this one out. Would not have seen it, or had it on my radar if not for him!
Huge population in rock overhang cave over peat
showing habitat on north-facing exposed sediments/soil
on shaded muddy/silty banks of small stream
@rambryum. Am I getting warmer? Tiny! On Pacific Ninebark, my new fave liverwort supporter. Davis Lake Provincial Park, BC, Canada
Hakai Lúxvbálís Conservancy, Central Coast, BC
Gravelly path margins. Update on: https://www.inaturalist.org/observations/149288423
New season of sporophytes, undifferentiated capsules in early October.
Seems like a really good candidate for R. nigrella, will have to update later.