Tropicals & Tender Perennials: Strange blossom on Logee's Inca Sun, 1 by bettydee

bettydee wrote:
Beautiful looking flower!. It's probably a weather or environmentally related effect on that one bud. I had a whole flush similar to that on one of my yellow Brugs once. The next flushes were normal. I could never pinpoint the reason for that happening other than weather or its age. It was a young plant.

Upon closer examination, mine was more shredded than split into petals. As Jori suggests, wait and see what other flushes along that branch give you. It would be exciting to have a yellow version of Star Dancer around.
http://davesgarden.com/guides/pf/go/59940/