Fl. forming a double triangle, 100 mm diameter; perianth segments very broadly ovate, blunt, slightly mucronate, shouldered at base, spreading, plane, with margins slightly incurved, of heavy substance, overlapping half; the inner segments more narrowly ovate, more nearly acute; corona split to base, the six segments opposite the perianth segments and closely overlying them to half their length, ribbed, coral pink, with green at base, bi-lobed, with rim rolled.