Fl. rounded, 68 mm wide, facing up; perianth segments very broadly ovate, blunt, prominently mucronate, greenish white, spreading, concave at apex, with margins slightly incurling, smooth and of heavy substance, overlapping half; the inner segments less noticeably mucronate, a little inflexed; corona cup-shaped, loosely ribbed, of a darker greenish white than the perianth, with light yellow-green at base and red at rim, mouth straight, wavy, with rim crenate.