Fl. 100mm wide; perianth segments 39mm long, very broadly ovate in outline, rounded at apex, mucronate, deep creamy lemon yellow, with a band of white at base, spreading, concave, with margins incurved, smooth and of heavy substance, overlapping half or more; the inner segments narrower, shouldered at base, more nearly plane; corona 38-39mm long, cylindrical, smooth, white, with a narrow band of yellow at rim, mouth straight, narrowly ribbed, wavy, with rim crenate.