Pedigree Chart of
Clusius
, 1 W-Y, E.H. Krelage and Son, the Netherlands, 1931
N. Hispanicus
Seedling
unknown
Maximus
King Alfred
N. bicolor
Emperor
N. pseudonarcissus
Clusius
N. pseudonarcissus
Horsfieldii
N. bicolor
Lady Margaret Boscawen
Ornatus