Moss does not often have the most interesting common names, but this one is making an effort. "Electrified Cat's Tail Moss" (Rhytidiadelphus triquetrus)
I disturbed a pill bug (Armadillidiidae) who promptly rolled himself into a ball. The Buster Bluth of the bug world.
Once again distracted by not-mosses: I think this is thyme-leaved speedwell (Veronica serpyllifolia)?
"Are you taking a picture of an English daisy?" another person on the tour asked, momentarily incredulous that I would bother with something so common. I said, "Yes, they are pretty," and she conceded that they are, despite their ubiquity.