Angela, as Rob says there are so very many possibilities, but I think you should try posting this question to the Daylilies forum specifically. That way more of our "real" expert daylily growers will be sure to see it, and someone may recognize it.
Also you could try to contact the grower, and if you do, they may be able to ID it for you.
(edited to add) I went and googled B & D Lilies and they don't sell daylilies, so perhaps you should check again with your aunt to see if she's sure that's where it came from. Trumpets, Orientals, Orienpet . . real Lilies, not Hemerocallis which are daylilies.
