Fissidens fontanus
This is a slightly larger plant when compared to the fissidens nobilis. Growth pattern is similar though it does not seem as "neat" or tightly packed as the nobilis.
It doesn't do too well under the shade as demonstrated in the photo. Just compare the growth on the shaded part (on the right side) to the part that gets more light (on the left). The photo shows about 5 weeks worth of growth.
Again, this is very low maintenance and does well if you just leave it alone. Even the really tiny bits will grow out nicely.