Leaves narrowly rectangular-elliptic, narrowly ovate-elliptic to elliptic-oblanceolate; secondary veins 5-7 pairs; valves without transverse rugae.

• 狭的叶矩形的椭圆形，狭卵形椭圆形倒披针形到椭圆形；次脉5-7对；没有横裂的皱纹的裂爿。