Tab. VIII. 



A. Gleichenia acutifolia, Hook. — p. 7. 



Fig. 1. Fertile frond ; nat. size. Fig. 2. under side of a seg- 

 ment; magnified. Fig. 3. Portion of ditto; more magn. 



B. Gleichenia pedalis, Kaulf. — p. 6. 



Fig. 1. Portion of a frond; nat. size. Fig. 2. Fertile seg- 

 ment, under side ; magnified. 



