Is Extra Rich the hybrid for sale off of Woodstream Orchids? This whole thread reminds me of an old thread regarding the utility (or ethics!) of hybridizing closely related species. I think this thread is a case in point. There doesn't seem to be any significant advancement of science or aesthetics, but there is definitely a whole lot of anguish and confusion. The only real utility I can see from a conservation standpoint that if exstams are so rare in the wild, and the odds of losing the handful of imported plants is high at least 50% of the genes will be saved in Dixler crosses. These can ultimately be backcrossed (repeatedly)to get something 95% exstam again. Kind of like they are doing with American Chestnuts.