I agree with Sean you have to put your nose in there then it's really powerful, like a good wine. Maybe the shape of the flower bowl keeps it in.
This time of year we are awash with heady scents, enough to make you giddy. At the front gate I have the gothic looking Gongora orchids perched like vampire bats fangs ready, positively reeking of nutmeg cloves and cinnamon. Mingled up the same tree is a large "monster deliciousness" that honks of ripe bananas and vanilla, altogether its quite overwhelming.
We also have a shrub with flowers that smell exactly like pineapple, minute the sun comes out the smell begins to waft across. Maryvonne I just collected a big fat pod from a pastel orange Brugsmania loaded with thousands of good seed, do you know if they germinate easily? The only other one nearby is white so I am hoping for some interesting colours.