This site is of interest for daffodil enthusiasts and especially hybridizers. I cross in most cases standard daffodils with different species from Spain and can give some information on results and methods. First you can look at the following text: Pollen Volume and Chromosome Content of Daffodils - Possibilities for hybridizing 2 (January 2013). Some new results you find in 'Pollen Volume and Chromosome Content of Daffodils - Possibilities for hybridizing 3 (January 2014)'. In a third ( small pictures and text) and fourth document (big pictures without text) you get information on 'Crosses of Standard Daffodils with Species'. The article 'Hybrids of different narcissus species can be fertile by generating unreduced pollen' describes how to use these hybrids to breed exceptional daffodils. The paper 'The generation of fertile allotetraploid hybrids of narcissus species by chromosome doubling' from June 2015 pictures how to get tetraploids from diploid species hybrids and species by an Oryzalin treatment and gives suggestions for crosses. In 'Narcissus cyclamineus crosses and their fertility' from February 2016 it is explained how to combine Narcissus cyclamineus with other species and varieties and what crosses are fertile.