Katie, Thanks for the information on the double pistils! BTW, what is the poly in your avatar? Love it.
Michele, I think double pistils in a fused bloom are different than what you are talking about. I've seen what you mean but I've always known split pistils as being single pistils who's tubes are split and they don't set seed.
Bobbi,
There are other poly doubles. The ones I know of are Polymultipetalicious, Schnickle Fritz, Forsyth Tepaled Double, Beware the Wizard, Mystic Jellyfish, Fin and Feather, Four by Four, Alternate Universe, Little Damsel and Little Wild Flower. I have all but LIttle Wild Flower so hopefully will have pics of the others later in the season.
Alternate Universe, the right bloom here is poly
Fin and Feather. This poly'd a lot for me last year.
Schnickle Fritz. This has run 35-50% poly for me the last 2 years.