Well, those of you that have gotten some of the Hoya wayetii mounts from me have these to look forward to! They smell like cotton candy mixed with sweet strawberries. Very fragrant. The nectar tastes extremely sweet as well.
Asclepiadacea is the family I believe. Dischidia, Hoya and Dischidiopsis are 3 of the genera in the family. These are the 3 I'm most interested in. I've yet to get any Dischidiopsis, but I'm working on it... 8)
Umm, I don't know. They are in the Milk Weed family. All of them will secrete a white, sticky (:lol substance when you cut the stems or rip off flowers.