Tab. LXXII. 



A. Adiantum Wilsoni, Hook. — p. 6. 



Fig. 1. A young and entire frond. Fig, 2; nal. size. Fig. 2. 

 Perfect fertile frond, one pinna removed ; nat. size. Fig. 3. 

 Portion of a sorus ; magnified. Fig. 4. Portion of sterile 

 pinna, to show the venation : magnified. 



B. Adiantum Phyllitidis, J. Sm. — p. 5. 

 Fertile pinna ; naf. size. 



