I was looking at an old pdf file on the genetic study from about 1920, & they showed the maple & willow, plus the various flower forms & mentioned 'Parent stock'
Well, I bought a pkt. of 'Sunrise Serenade' locally, but I think the 'double' they refer to , is the petaloid type, in the center of normal corolla, on same plant with a 'normal' flower to use .. Another member sent some Lavender Beauty seeds, among others.
The one mutant leaf is finally becoming more complex & variegation started ...
I made notes on what is involved, & want to try & make seeds for Dianthus flowered form. JHeirloom, they got you started too, huh? It's all good, interesting & really has been enjoyable.
