Fl. 110mm wide; perianth segments 45mm long, very broadly ovate, blunt, scarcely mucronate, white, a little inflexed, plane, smooth and of heavy substance, overlapping half or more; the inner segments narrower, shouldered at base, slightly truncate, not noticeably mucronate, with margins slightly incurved; corona 15mm long, disc-shaped, regularly ribbed, white, touched green at base, mouth expanded, lightly frilled, with rim crenate.

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