Fl. rounded, 72 mm wide; perianth segments very broadly ovate or roundish, blunt, light lemon yellow, with slight whitish mucro, spreading, with margins incurved, smooth and of heavy substance, overlapping half; the inner segments square-shouldered at base, slightly inflexed; corona funnel-shaped, ribbed, blush pink, shading to a darker tone at rim, with light lemon yellow at base, mouth straight, a little frilled, with rim crenate. Sunproof.