Fl. rounded, 75mm wide; perianth segments 31mm long, very broadly ovate in outline, rounded at apex, deep golden yellow, with slight pale mucro, spreading, plane, with margins incurling towards apex, smooth and of heavy substance, overlapping half or more; the inner segments narrower, shouldered at base, not noticeably mucronate; corona 13mm long, cup-shaped, orange, with yellow at base, mouth ribbed, wavy, a little expanded and shallowly lobed, with rim crenate and very narrowly flanged.