Many people who are devotees of the Rhododendron fail to appreciate that hybrids are the result of a single cross and are propogated from there by tissue culture or grafting. Which is why you never see seeds offered for hybrids (intentionally, at least). Now I see quite a few seed sellers for Acer palmatum cultivars, and wanted to ask to what degree they are likely to produce true replicas of the original, and to what degree you'd expect varied results with possibly open-pollinated seed stock. Even if few are inter-species hybrids, one would think that seeds would be an unreliable way to reproduce the cultivar, and that a percentage would be throw-aways. I have to wonder why someone would pay $5 for a seed packet when they could pay $15 for a tree large enough to see exactly what they were getting.