I agree with the seedling x seedling thing, do not understand why a person who is interested enough in hybridizing can't take the time to record the parents. I still have my seedling records back to before I registered my first daylily in 1998. There are very few occasions I did not know the the pollen parent, and always recorded the pod parent. I know from experience that tags or paper clips may not always stay on the plant, but that is rare, but first you have to hang it on the plant. To not record the parentage is just lazy.
We had a major hybridizer do a program for our Region 14 fall meeting and this person sad they did not have time to keep up with parentage will all the other garden related stuff they had to do. I have also been in a hybridizers garden with seed pods everywhere and not a tag or clip on one of them. This person said when the seedlings bloomed he would know the parents, he really expected me to believe that.
If you make seed please record the parentage if you intend to plant and register daylilies.