Fl. forming a double triangle, 113 mm wide; perianth segments broadly ovate, blunt, mucronate, greenish white, spreading, concave, smooth and of heavy substance, overlapping half; the inner segments narrower; corona bowl-shaped, ribbed, brilliant yellow, with strong yellow-green at base, shading to vivid yellow at rim, mouth flared, frilled, with rim crenate. Sweetly scented.

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