My thoughs are if a daylily has a different color edge it is not a self, altho some hybridizers describe there intros as a pink, cream, or other color self with a gold edge. The AHS only mentions the throat as you said and today the throats are coming so far out on the pedals that some look like two different colors as this seedling shows. Some of the eyes have become so big theres not much base color left. These are not bad traits but somewhere down the road AHS will have to come out of the pass and address the modern daylily.
