Dennis616 said:Fred, that sure seems to confirm the dominance of teeth!
There are other possibilities.
Teeth and ruffled edges might be different aspects of the same characteristic. For example, do plants like 'Decatur Piecrust' and 'Yuma' have ruffled edges, the beginning of teeth or both? Decatur Piecrust × [sdlg × (Lahaina × Yuma)] -> Forestlake Ragamuffin
Teeth, like most characteristics that can have different measurements (length of the teeth) might be additive. Then a cross of a plant with large teeth to a plant with no teeth (and none in its ancestry) would produce seedlings with an average tooth length of 1/2 that of the toothed parent. A cross of a plant with small teeth to a plant with no teeth (and none in its ancestry) would produce seedlings without teeth. With some quantitative characters, (teeth would be a quantitative character because two daylilies can both have teeth but they would have different length teeth) there is a threshold below which the characteristic is not visible in the plant. A quantitative character has many different genes that affect it (eg 30, 60, etc). When a characteristic has a threshold then although many genes affect it (eg the length of the teeth) it does not become visible to the unaided eye until a certain number that increase the character have been accumulated.