It looks like Cattleya schilleriana. C. schilleriana is actually a lithophyte.
I found an article that features a Q & A style writing about a South American orchid nursery that primarily deals in Cattleyas and Laelias. There is pretty specific info on it's natural growing conditions.
Last edited by King_of_orchid_growing:); 11-29-2009 at 06:26 PM..