The pedigree will track the many of the characteristics of previous generations, and may show what attributes seem to be (or could be) passed on in certain cultivars whether it be yellow petals, patterned eyes, ruffles, etc. These are characteristics that are passed on from the current or later generations.
I couldn't agree more with you .... about how to pick even one among 80,000 cultivars! New come in and the old often get lost in the shuffle of the annual newest introduction plants. But that is also the reason daylilies are sooooo popular. The variety is astonishing! AND .... anyone can name and register their own seedling for $20.