Fl. 110 mm wide; perianth segments very broadly ovate in outline, blunt or rounded at apex, prominently mucronate, pure white, slightly reflexed, plane in lower half, concave above, smooth, overlapping half or more; the inner segments a little more narrowly ovate, blunt, less prominently mucronate, spreading, loosely creased, with margins wavy; corona bowl-shaped, smooth, deep orange-pink, mouth straight, lightly frilled.