I had 2 prolifera about half-a-year ago. It died on me after a while. So I dumped the pot at the wash area in my apartment. After a couple of months the sphagnum moss grew over the pot.
then one fine day I decided to dig into the moss for no particular reason... ok, maybe at right at the back of my mind, I was hopping it woould grow back from the roots or perhaps some seeds that were left in the media when I got it.
To my surprise, I found a few babies growing in the moss after digging into them.