Fl. rounded, 91mm wide; perianth segments 44mm long, roundish, very broad, rounded at apex, mucronate, slightly inflexed, concave, creased and of heavy substance, overlapping half or more; the inner segments narrower, more nearly ovate; corona 32mm long, cup-shaped, angled, mouth expanded, ribbed, wavy and shallowly lobed, with rim minutely crenate. Early. Sunproof