And, the last email sent to me from Kim Rupert as follows:
"Sure, please feel free to use any of the information you wish. Oh, another piece of evidence to demonstrate size being a possible mutation is Gourmet Popcorn, which is a sport of Popcorn. They sport to climbers and even from climbers to bushes. Summer Snow, the 1938 floribunda, was a sport of Cl Summer Snow, the climbing, whiter, seedling of Tausendschon. A climbing seedling from a climbing plant, sported to a bush. Sports can go in any direction, as long as that possibility is contained within the plant's genes. If the line is a homogenized, unstained yellow (no red tints anywhere in the plant), it can't sport to a red, as there are no red pigments contained anywhere within that plant's make up. Miniaturization comes from many sources, not just Chinensis. Ralph Moore observed it out of Wichurana breeding lines. Happenstance and Little Mermaid, both root sports of Mermaid, are miniature Bracteatas. The "Fairy Roses", the miniature multifloras still sold as seeds, are pure multiflora and "miniatures". The Gift is an example of that. It's entirely possible that the original polyantha, Paquerette, is simply a form of one of the "Fairy Roses", so miniaturization also comes out of multiflora. Why not many or even most of the other species?"