Fl. 75mm wide; perianth segments rounded, very broad, blunt, prominently mucronate, white, spreading, plane or with margins a little incurved, with midrib showing, of membranaceous substance, overlapping half; the inner segments narrower, less prominently mucronate, shouldered at base; corona bowl-shaped, angled, yellow, with a broad band of red (sometimes reddish pink) at rim and green at base, mouth expanded, lightly ribbed, deeply six-lobed, with lobes overlapping and wavy, with rim entire.