J. Lionel Richardson, Ierland
Jaar van Registratie: 1938
Gracious x Seraglio
Green Island
Grant E. Mitsch, Verenigde Staten
Jaar van Registratie: 1954
Rubra x Sylvia O'Neill
Bithynia
Fl. 92 mm wide; perianth segments blunt, greenish white, slightly inflexed, overlapping; the inner segments narrower; corona ribbed, light greenish yellow, tinged green at base, mouth straight, frilled, rim crenate. Resembles a more vigorous ‘Bithynia’ with a smoother and whiter perianth.