Fl. 104mm wide; perianth segments 48mm long, very broadly ovate, minutely truncate, brilliant yellow with slight white mucro, spreading, margins slightly incurved at apex, smooth and of heavy substance, overlapping half; the inner segments slightly narrower, less prominently mucronate, more nearly ovate, shouldered at base; corona 15mm long, funnel-shaped, angled, irregularly ribbed, strong orange, with a darker tone rim, mouth slightly expanded and lightly frilled, with rim minutely crenate.