Fl. 104mm wide; perianth segments 37mm long, broadly ovate, blunt, mucronate, white, spreading to a little reflexed, plane or with margins incurved, with midrib showing, of membranaceous substance, overlapping half or more; the inner segments narrower; corona 18mm long, split to base, forming an outer and an inner whorl of three segments, each half the length and almost as wide as the perianth segments and closely overlying them, opening yellow, becoming yellow-orange, deeper in tone at rim and yellow at base, bi-lobed, with lobes overlapping, narrowly ribbed and lightly frilled. Strongly scented.