Dear Tim,

TCC> Would anyone be able to direct me to those places in the Pali canon
TCC> where miraculous events are attributed to the Buddha's birth or to his
TCC> enlightenment? I'm especially interested in the motif of flowers
TCC> falling from heaven (wherever this may occur in the texts). Thanks very
TCC> much in advance!

You may find relevant information and references in the article:
http://www.palikanon.com/english/pali_names/b/buddha.htm

Best regards,
Dimitry