I think it would be nice to have a scheme that shows what species of narcissus can be crossed and which of these hybrids is fertile. This is not only useful for breeders but might also show relationships. I am willing to make such a scheme, the only thing missing is data! Maybe I can give one parent at a time and maybe you are so kind to fill it in. Lets start with a simple on. What species can be crossed with N cavanillesii ( I know of serotinus) Ben J.M.Zonneveld Institute of Biology,Leiden University, Clusius lab Wassenaarse weg 64, 2333 AL Leiden, The Netherlands Zonneveld@rulbim.Leidenuniv.NL Fax: +31-71-5274999. min temp -10C (15F)