Fls up to 5 per stem, 62mm wide; perianth segments 25mm long, broadly ovate, blunt, yellow, with pale mucro, plane or somewhat reflexed, plane or with margins incurved, smooth and of heavy substance, overlapping half or more; the inner segments narrower, more nearly spreading, plane, shouldered at base, scarcely mucronate; corona 16mm long, cup-shaped, smooth, mouth flared and broadly ribbed, with rim minutely crenate. Mid-season