Louis, I wish I had bloomed 'Perfection'. It is the property of Tokyo Orchids; I am many years away before I have the benjamins required to ask them for a division. Although by then I would imagine the bar for roths to be even higher.
Heather, NS is natural spread. And don't apologize for asking questions--as with anything new, we all start off with zero orchid knowledge and gradually amass information and trivia that would make alex trabec cringe...
Pretty bug--a brief 30 second primer on naming. Hybrids can be named anything, as long as it is accepted by the RHS (Royal Hort. Society), which maintains the database of names. Clones of a given species or hybrid can also be named anything within reason. Species names must be latinized--i.e. Paph. rothschildianum, named after Baron Rothschild. Some of the old-time hybrids (around 1900) were also latinized, but to avoid confusion, the RHS disallowed that practice a long time ago. That is why you have things like Lc. Canhamiana, a hybrid registered looong ago between C. mossiae & L. purpurata. One would not be able to register a latinized hybrid these days.
"Rex" is a brassia hybrid as Peter mentioned, 'Rex' is a famous clone of paph roths, and rex is also a species of cattleya. There may yet be more "rexes" out there.
One more snippet--natural hybrids are lowercase, and are preceded by an "x". For example,
Phal. x intermedia is the natural hybrid between equestris & aphrodite. Unfortunately, the artificial hybrid between these same two parents can also be registered with the RHS under a different (and capitalized) name. So if you had a plant growing in the wild that was a hybrid of equestris & aphrodite, it would be named
Phal. x intermedia, while if you crossed equestris & aphrodite, the correct name for the seedlings would be
Phal. Vesta. Britons...