Will post in ID forum too but thought might have more "experts" here.
I took this back on May 1st at Powell Gardens conservatory in Missouri. I'm in no way any kind of knowledgeable gardener when it comes to these, but loved the look of this one. I just got around to looking in the PDB and don't see anything like it. A google search revealed thousands of pics and little patience to wade through them all.
Thought I could upload it to the PDB but don't have a clue what it should be called!
It's probably a hybrid Paphilopedilum - there are so many hybrids, I think it's impossible to get an accurate ID. The conservatory might know? My guess is that it's one of the dark maudiae type hybrids.