The sori are borne on the abaxial surface of the pinnule, arranged in two rows parallel to the midvein, elliptic,and composed of -0 round sporangia.
The sori are borne on the abaxial surface of the pinnule, arranged in two rows parallel to the midvein, elliptic,and composed of -0 round sporangia.
囊群椭圆形 ,由 ～ 0个孢子囊组成 ,着生于小羽片背面 ,位于中脉的两侧 ;