Lower sepal navicular, ca. 6 mm deep, narrowed into an incurved or involute spur ca. 1.5 cm, tip rounded, mucronulate.

• 唇瓣舟形，约6毫米深，约缩小成一弯曲的或内卷距长约1.；5厘米，端部圆形，具小短尖的。