I'm wondering the same thing. Mine is out in the front porch and came potted in what looks like fern, but I'm not sure that this is the best thing for it. Moss goes really bad really quickly where I live (SW Miami, near Homestead) So I hesitate to pot it in moss. Thanks for all of the information.
BTW, efg orchids had one on ebay last week and I know orchidweb.com sells them, but really expensive.