Growing at side of path on thin soil over rock in moorland. Leaves up to 3mm long with wide nerve tapering to thin point (photos 5 and 6). Seems to have loose leaves lying on surface which look slightly different to the main leaves (photos 7 and 8).

This was growing in a tussock in the woods around Lochan Mor, near Avimore. Leaves are <1mm and shoots maybe 10cm though could be longer depending on how much buried in the tussock. I felt it was quite tree-like, but I don't think it keys to any of the tree-like mosses and the other species I keyed to don't match. Looking at other pictures, Hylocomium splendens is another suggestion - though I can't see any teeth