Greetings: I write to inquire if pure lines of scented roses are maintained in North America. Have contacted botanical societies who can only refer this item to others. Have a short list of 28 roses worth seeing in person but no way to locate. Additionally, I write to inquire about the benign microbes that are found on the rose. What would the microflora contain? Guidance sought Phil Pense Washington, D.C.
The first seems like a better (i.e., more targeted) question for this forum: Rosebreeders.org (the Rose Hybridizers Association Forum).
As for the question about microbial flora, I suggest contacting a researcher directly for the most efficient answer. Maybe someone like Dr. Larry Barton, who is the lead author on a recent book on Microbial Ecology (one of the chapters is about Interactions between Microorganisms and Plants).