Pontresina
Classification:
2 W-Y[ Large-Cupped ]
Season:
Mid-Season
Height:
Standard - 32.5 to 67.5 cm (12.8 to 26.6 in)
Registered:
Yes, 1958
Seed Parent: 
Green Island 2 W-GWY 
J. Lionel Richardson, Ireland
Year Registered: 1938
Gracious x Seraglio
Green Island
Pollen Parent: 
Chinese White 3 W-W 
Guy L. Wilson, Northern Ireland
Year Registered: 1937
Silver Plane x (Silver Coin x unknown)
Chinese White
Chromosomes:
28
Fertility:
Both Seed and Pollen fertile
Used as parent:
8 times as seed, 2 times as pollen
Comments

Fl. 114 mm wide; perianth segments very broad, not prominently mucronate, pure white, spreading, concave and with margins incurling at apex, smooth, regular, overlapping half; the inner segments narrower, shouldered at base; corona very shallow funnel-shaped or almost disc-shaped, opening pale yellow, soon becoming whitish, with green in tube, mouth deeply split and overlapping, usually 3-lobed, frilled. Resembles ‘Green Island’ in form. Catalog 69: cup of uniform pale primrose.