Fl. forming a double triangle, 120 mm wide; perianth segments broadly ovate, blunt, mucronate, lemon yellow, spreading, plane, smooth or somewhat creased, of heavy substance, overlapping half; inner segments a little narrower, with margins nicked and slightly wavy; corona split to base, the six segments narrower than the perianth segments, two-thirds their length and closely overlying them, lightly ribbed at base and more strongly towards apex, creamy pink, squarish at apex and deeply bi-lobed, with the lobes overlapping, wavy, crenate.