Yes, a seniors moment, sorry
Brugmansia suaveolens (=agreeable/sweet scented)
I think there is a book, just on the Brugmansias, which may give more accurate botany
PS
Its hard to find a good chemical analysis of the plant. It seems however that the plant can change this at will,. A possible cause of poisoning?- "You bite me; I bite back" ?
http://www.springerlink.com/content/v3182j712717h8j6/