You can get the jasmine at http://www.rareflora.com/nycanthes.html
I have ordered from them it the past and plants arrive healthy. As for Michelia alba they are uaually in local nuserys around Mothers day / Spring when they are in bloom.
Good luck!
Heavin

I see Nyctanthes arbor tristis being offered at Logee's. Perhaps you did not find it because of the different spelling. The price seems a bit high to me but perhaps not outrageous if someone really wants it. Hope this helps.

Jerry

Keep in mind that michelias can be tough to germinate, and it's likely to be 6+ years before you see flowers!

Jim