>Since pilobolus seems to mean expelling the products of conception as a projectile, I wonder how that would be choreographed.

okay, bill, here's another way of approaching this: since the pilobolus has a pod, or cluster, or glob of spores which is ejected from the 'mother' plant, perphaps this could be looked at as a group which, although the individuals have strayed far from their roots, hangs together in the attempt to renew their art.