Need Help

[linda]

I was at a local nursery and while walking around the orchid table I noticed a pile of dead rubbish on the floor well along with that rubbish I noticed this little guy.
I asked what they were going to do and the guy said it's dead stuff we're throwing it away. So I asked if I could have it and he said yes but why would I want a dead orchid when I could have a live one and I just want this one I said and when I got home I realized I forgot to ask what kind he is and the care for it. So if anyone could help me I would appreciate it . There seems to be roots growing up the stem should I cut them of or what . If anyone has any care ideal I need them. heres some more pics