Watermarks! An actual topic just for watermarks?? Love it!
I am no expert, and I think that recessive or dominate may have more to do with a particular cultivar, than a specific trait...
But that being said, I have some daylilies here that seem to put a watermark on anything and everything. ARABELLA PEARL and VICTORIA JOSEPHINE put a watermark on everything. They are out of HIGH WATER MARK (which does the same thing) and WHITE EYE PINK DRAGON (which I have not done as much with).
In continuing down the ARABELLA and VICTORIA line, watermarks tend to dominate.