Fl. rounded, 92 mm wide, facing up; perianth segments very broad, deeply truncate, mucronate, brilliant greenish yellow, spreading, plane or somewhat concave, smooth and of heavy substance, overlapping half; the inner segments reflexed in upper half; corona deeply split, the 6 segments opposite and closely overlying the perianth segments to two-thirds their length, ribbed, vivid yellow, shading to strong orange at rim, deeply bi-lobed, with the lobes overlapping, frilled, with rim crenate. Sunproof.

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