What exactly is the "temperature hypothesis" and how is it any different from what is already known from the massive amount of literature already available on flower initiation? Incidentally, as some of you already know, I saw my first Amaryllis belladonna in flower this year in Berkeley on June 6. The oldest flowers were well past anthesis and had obviously already been open for several days. This is not at all surprising this year and mildly interesting, but this is still just another anecdotal observation. Nathan At 02:11 PM 6/12/2015, you wrote: >This is a great year on the West Coast to test the temperature hypothesis.