Yellow-green (poor fen) peat moss, a sphagnum species. This is an excellent moss in which to create a "fridge" if you dig down to a depth of say 1/2 metre, then cover with about a 1/3 metre layer. I find that the temperature stays at refrigerator temperature (less than 8C) all summer, especially if in a well-shaded spot.
Stair-step moss. This moss lives in drier spots than the sphagnum species. I use either moss to clean hands, pots, fish-cleaning board and as a layer in the canoe on which to lay fish after being caught so as to keep the boat free of animal-attracting fish fluids. I also use stair-step moss to level a tent sleeping area. It is still utilized to chink log cabins.