Julie, you've got some beauties there!
B. masoniana is one I've never had any luck with. I lost B. listada a few years ago - it was about 5 years old and was HUGE!
I grabbed a few photos of some of the newer ones on the deck yesterday but again running out of time this morning.
Alan, this one's for you.
The "new" Rex Begonia Vine. My camera fogged up from the humidity but you can see it's quite happy here by the front door.
I was thinking about the fact that these are so hard to find. Oddly enough, my first one came from a garden center in Ohio and my DH bought this one in Michigan. That area seems to have the monopoly on these beauties!