Would love to see a follow-up, Mary Jane, if AHS's Encyclopedia has a specific list of daylilies like this. Like many of us here, I share OldGardener's and others' growing comfort level in expecting the unexpected, being open to many possible answers, and enjoying the great kaleidoscope of things that appear after so many generations of hybridization between species.
Thanks so much for sharing your photos, and creating this interesting discussion.