[miremonster]

I guess it's a Selaginella, perhaps the same species that is often sold as a cheap potted plant:
http://www.odsitalia.it/storeimgs/selaginella apoda 48.jpg
http://www.agarden.cn/html/hh/guanyezhiwu/caobenguanyezhiwu/20070509/3045.html
I don't know if the name S. apoda used in horticulture is correct, because the real S. apoda, Meadow Spike-moss (not a real moss!), native in the U.S., looks different.
However, it's a terrestrial plant.

 

[miremonster]

The large moss in the last picture looks like Rhodobryum roseum, a widespread terrestrial moss in the northern hemisphere:
http://www.hlasek.com/rhodobryum_roseum_aj8776.html
http://calphotos.berkeley.edu/cgi/i...Rhodobryum+roseum&title_tag=Rhodobryum+roseum

 

[miremonster]

The selaginella called S. "apoda" by gardeners (that IMO may be the same species as the "100 USD plant") is cultivated under the name Selaginella rotundifolia in the botan. garden of Goettingen:

A branch upside down (background: millimeter scale):