This evening I finished off the samples from the stream itself which included Hygroamblystegium fluviatile (fruiting), Trichostomum tenuirostre and Lejeunea lamacerina. Best by far, though, was a big tuft of Fissidens which turned out to be taxifolius. Why the excitement? Growing among it were a few strands of this:
I believe this is only the 4th county site, and the first in East Glam. It was well concealed among the Fissidens and shows that this distinctive species can easily be missed in the field (at least by me!) when present in small quantity.
The taxa list from the day is now up to 87 (all in one monad) with a few more still to look at...