Explanation of Plate VII. 



Adiantum obtiquum Willd. p. 142. 

 Figs. 1-4. Successive stages between kaulfussi and intermedium. X Yz. 



Adiantum cristatum L. p. 146. 

 Fig. 5. A middle pinnule. X 1. 

 Fig. 6. Basal half of a pinna. X !• 

 Fig 7. The tip of a pinna. X i- 



