Ross Hornsby, Alabama

Possibility of intergeneric hybrids.

January 16, 2020

Categories: Autumn Blooming Daffodils, Breeding, Daffodil Types, General, Hybridizing, Non-Daffodil, Science, Species, Taxonomy

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Reading about ×Howardara (a complex trigeneric hybrid involving species from Hippeastrum, Sprekelia, and Zephyranthes), as well as other intergeneric hybrids from the Amaryllidaceae, such as ×Amarcrinum, I was wondering about the possibility of intergeneric hybrids involving Narcissus. Has anyone tried this before? Just by browsing online sources, I’m seeing that Sternbergia is the most closely related genus, with S. colchiciflora as the most isolated species with 2n=20, other species such as S. lutea being 2n=22. Of the species of daffodils, which would be the most likely to be compatible? I’m guessing the ideal arrangement would be an allotetraploid hybrid with two sets of chromosomes each from Narcissus and Sternbergia. If such a cross could be made, would the offspring be considered a daffodil?

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