Riverdolphin: You are quite welcome! I hope you will add your great photo's to the database:
Hooker's Orchid Cactus (Epiphyllum hookeri)
I live in Daytona Beach, Florida and my E. hookeri blooms have always opened around 11:00 p.m. and are usually wilted by daybreak or soon after. My large plant is now in a deeply shaded corner of the backyard and two weeks ago there were two blooms still open the next morning around 9:00 a.m. but I've never had them remain open for a full day. I've read that E. hookeri blooms are fragrant but I've not detected fragrance on mine but it's probably just my nose, LOL because I have a very large Epiphyllum oxypetalum that everyone says is extremely fragrant and whenever it's in bloom I can only detect a slight fragrance.