Fls 2 per stem, 80mm wide, facing downwards; perianth segments 35mm long, oblong in outline, rounded at apex, mucronate, white, touched yellow at base, somewhat reflexed, plane or with margins incurved, smooth and of heavy substance; the inner segments a little narrower, more nearly spreading; corona cup-shaped, 15mm long, smooth, lemon yellow, touched green at base, mouth a little expanded, wavy and irregularly lobed, with rim entire.