Fl. forming a double triangle, 105mm wide; perianth segments 48mm long, roundish, very broad, blunt, scarcely mucronate, spreading, plane, smooth and of heavy substance, overlapping half; the inner segments narrower, with margins slightly incurved, somewhat shouldered at base; corona 10mm long, bowl-shaped, smooth, mouth expanded and narrowly ribbed, with rim crenate. Season? Height?