Marmora
Classification:
2 W-W[ Large-Cupped ]
Season:
Mid-Season
Height:
Tall - greater than 67.5 cm (26.6 in)
Hybridizer:
Registered:
Yes, before 1919
Seed Parent: 
Minnie Hume 3 W-W 
William Backhouse, England
Year Registered: 1869
Albicans x N. radiiflorus
Minnie Hume
Pollen Parent: 
Mrs. Ernst H. Krelage 1 W-W 
E.H. Krelage and Son, the Netherlands
Year Registered: 1912
Madame de Graaff x King Alfred
Mrs. Ernst H. Krelage
Chromosomes:
28
Fertility:
Seed fertile
Used as parent:
3 times as seed
Comments

Fl. ivory white, facing slightly downwards; perianth segments very broadly ovate, not prominently mucronate, a little inflexed, with margins slightly wavy, very smooth, overlapping half; the inner segments twisted; corona cylindrical, angled, rim flanged, notched, minutely crenate.

According to The American Horticultural Society’s 1937 issue of the The American Daffodil Year Book, Guy L. Wilson’s article “Some Modern Daffodils for Garden Decoration” states: “It is a perfectly beautiful large flower of ideal form and balance, great substance and very durable, growing in size and whiteness as the flower ages, a plant of splendid vigor and freedom of bloom, making heavy healthy bulbs.”