Thanks for the info Doc. So in bloom I should allow at least 20". The plant itself doesn't look terribly big, so I might be able to make it work for me. You're right on the money on the parentage. Great combo.
Here's an updated photo of the liemianum twins. The petals on #2 bloom are just starting to twist.
These are pics of a paph labeled chamberlainianum var liemianum that looks so much like your plant, Terri. So my curiosity got the better half of me and not wanting the "cat" to die found that, in fact, both of our plants are what they are. In some circles my plant is listed as a sub-species of
paph victoria-regina. Why do they make things soooo confusing for simple-minded people like me!