OK, for the Pink Princess, you have several options. If roots from the upper portion of the plant have established themselves in the soil already, you can just cut the stem below those roots and let the bottom part of the stem sprout a new head. You can unpot the original root ball (gently) and tease out the root(s) that belong to the top part you cut off. Then, pot up with the root(s) buried. If no established roots are present, you can still cut the top off, let the cut end dry, then pot it up with some of the aerial roots buried so they can take hold. The bottom will still resprout over time.
For the Philo. 'Autumn', you need to see if there are several growing heads. There should be if you are wanting to divide it. Next, verify that the smaller one(s) have some little roots coming out already. You may find that one or more of these roots have established themselves in the soil. If so, do not cut those roots, but do make your cut with a clean blade at the junction where the small plant is joined to the larger one. Do this with each secondary plant you wish to separate (if there are several present). The procedure is the same if there are no roots from the secondary plant(s) established in the soil. You then pot the newly separated plants up, being sure to bury any small roots already emerged. Remove a few leaves from near the cut if they are in the way of potting the plant up properly.
Keep moist but not wet, and in the shade, and you should have more plants going soon.
LariAnn
