From PyroGuide
If a
shell has a cluster of
stars inside the main
petal which are not arranged in a particular pattern then it is said to have a pistil. Pistils can be made either by placing a cluster of stars at the center of the shell, by mixing them in with the bursting charge, or sometimes even by coating the stars with the bursting charge where the stars act much in the same way that other materials such as
rice hulls or
vermiculite but with an added effect. Common sense would suggest that the latter method will only be effective if the pistil stars are very small. A Pistil is different from an inner
petal in that in a
petal the stars are arranged in a pattern, most commonly a sphere.
