Fl. rounded, 78 mm wide; perianth segments very broad in outline, blunt or rounded at apex, prominently mucronate, spreading, plane or concave, overlapping half or more; the inner segments a little narrower, roundish, not obviously mucronate, slightly inflexed; corona broad disc-shaped, closely ribbed, greenish yellow, with green at base and a narrow band of orange-red at rim, mouth split in places and overlapping, wavy, rim minutely notched. Sunproof