It looks to me like they are not any specific one.
I suggest using a scalloped-edge round cutter and lightly ruffling the edge, then drying them in a small cup like a shot glass. If you have any gumpaste flower drying things you probably could find something. After they are dry, stack 2 together and use either stamen or dragees for the center.
Check out the Wilton Fantasy Flower. These may be made with a 5 petal cutter, ruffled and thinned edges with a ball tool, then stacked with tissue between the petals to dry. HTH and Best Wishes!
Here is the directions for fantasy flower they use a heart shape cutter
wow... yes.. looks like they are the same ones! thanks so much!!!!