Fl. 90 mm wide; perianth segments very broadly ovate, rounded or sometimes squarish at apex, slightly mucronate, brilliant yellow, spreading, plane, overlapping half; the inner segments more narrowly ovate or roundish; corona very deeply split, the segments in two whorls of three, as broad as the perianth segments and half as long, opposite and closely overlying them, with two overlapping lobes at rim, strong orange, deeply frilled, overlapping; the inner segments themselves overlapping at lobed shoulder.