Is the selection securely in cultivation?
A plant name should not be registered if only a few specimens exist. They might easily be killed by a cultivation error! At least a few dozen specimens of the potential cultivar should be in cultivation, and should be under the care of several different growers. The Pinguicula hybrid on this page was slated for cultivar registration, but alas died in cultivation during a bad season. It is a good thing that (expensive) pages of a plant journal were not wasted publishing this unfortunate plant. Sarracenia oreophila ‘Don Schnell’ was named based upon a single plant, which subsequently died before it could be propagated. Alas!