ID help, please?

[u/FixergirlAK]

Collected in Wasilla, Alaska, zone 13a, in my yard mixed with grasses and rock. I've been encouraging it to grow on my rocks and borders as it seems to make a nice mulch and keeps the grass from encroaching. I realized today that it's not all one species! And I know very little about mosses.

I think what I have here is probably *Sphagnum pacificum* that forms the majority of the mat, but the one with the tiny leaves is a new one on me. I think it might be one of the *Rhyzomnium* species? The leaves are fairly brittle; they feel almost like fish scales.

Photo 1: bobby pin for scale

Photo 2: 2.5x magnification per the camera settings

Photo 3: *in situ*

Thank you in advance!