Don't know if your memory is correct--but it makes sense. It could pick up on both transmitted light from above, or reflected heat and light from the ground. I've not seen this idea or fact before. Thanks. Will check further. ----- Original Message ----- From: "Jane McGary" <janemcgary@earthlink.net> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Saturday, November 06, 2010 1:03 PM Subject: Re: [pbs] Window flowers > One possibility that occurs to me, and that hasn't been mentioned yet, > about window flowers, is that some flowers (especially alpines) have > adaptations that appear to raise the temperature inside the flower. This > both attracts insect pollinators and increases the likelihood of > fertilization. Would the extra light entering through the windows do this? > I seem to recall that some Ranunculaceae that flower very early have > window petals. > > Jane McGary > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/