A couple more goodies from yesterday's outing, checked microscopically tonight.
The first section of the Nant Cae-dudwg I walked along was heavily modified (see photo below), a legacy of past mining activity. The feeder stream indicated by the yellow arrow was chanelled within concrete walls, the tops of which had a nice assemblage of bryophytes.
This Schistidium elegantulum was growing among abundant S. crassipilum and looked markedly different from it, with much longer hair points. At least 6 stomata were present at the base of the capsule I sliced in half.
The blurry rear of the photo above is shown in the photo below - a shaggy mat of Hygrohypnum luridum with young sporophytes. Under the microscope, the brownish granular alar cells and incurved upper leaf margins characteristic of this species were evident.