Hi Hans-Werner, Thanks for the information. H. aulicum and H. papilio are both usually diploids, but I think there are some triploid forms of aulicum. I have one clone of aulicum that has never set seeds on or by anything; I suspect it might be a triploid. I have heard that Hippeastrum x-johnsonii is found as diploid (2n = 22), triploid (2N = 33), and tetraploid (2N = 44) clones. I wonder if there could be some apomixis going on where self-seeds are produced? I have a bulb from the cross [papilio X pardinum] that has never set seed for me. Years ago, I made the cross [lapacense X nelsonii] and got several seedlings that bloomed, but they would never set any seeds. As far as I know, lapacense, nelsonii, papilio, and pardinum are all diploids. Next time you get some seeds from a complex Hippeastrum hybrid of the species, please send them to Dell Sherk for the PBS BX/SX. Best regards, Jim Shields in central Indiana (USA) At 08:58 PM 12/12/2007 +0000, you wrote: >I crossed H.aulicum v.robustum with H.papilio (the common evergreen clone >which is traded at least in Europe) ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA