Found them growing on a vine over a 10 foot wall in south florida. There are about 5 white stamens with thin fibers on top, the longest having a small white bulb-type thing. some of the leaves are heart-shaped the others were 3 seperate leaves in a tri-shape (not sure on the terminology)
Ipomoea hederacea? http://njaes.rutgers.edu/weeds/full.asp?morningglory http://www.zipcodezoo.com/hp350/Ipomoea_hederacea_14.jpg