With a compact growth form, the lesser smoothcap moss forms dense tufts and clumps, mostly in poor and disturbed soil. Like all mosses, it is like a wet habitat. When it gets too dry, it curls its leaves inward to preserve water. When it becomes wet again, it curls them back.
See: https://www.picturethisai.com/wiki/Atrichum_angustatum.html#:~:text=Atrichum%20angustatum%20Also%20known%20as%3A%20Lesser%20smoothcap%20With,it%20becomes%20wet%20again%2C%20it%20curls%20them%20back.
Steerecleus serrulatus is a shiny green moss that grows loosely branched and fairly flat on its substrate. Can be found on bark at the bases of living or down trees, as well as soil. The capsules are generally curved and bent downwards. The leaves are ovate with a pointed apex which is often twisted. The leaves also spread from the branch when both wet at dry.
See: https://sites.cortland.edu/bryophytes/field-guide/mosses/pleurocarp/steerecleus-serrulatus/
Under a bunch of Quercus incana and longleaf pine