PLATE XII. 



Prom the Lower Bagshot, Alum Bay. 



1 — G. Marattia Hookeri, Ett. and Gard. (British Museum^). 



2 a and 4 a. Apices of pinnae enlarged. 



4 b. Part of pinna enlarged. 



6 a. Enlargement from a specimen showing secondary venation. . 



Prom the Middle Bagshot, Bournemouth. 



7. Adiantuni apalopliyllum, Saporta (British Museum). 



8. Glossochlamys transmutans, Ett. and Gard. (British Museum). 

 8 «, 8 ^, 8 c. Enlargements, showing position of sori. 



9. Pern fragment, indeterminable (British Museum). 



10. Vodoloma polypodioide8,YAX.. and Gard. Enlargement of veins beneath sorus. 



11. Pteris eoca?iica, ^tt. and Gard. Fragment showing the relative proportion of 



terminal and lateral pinnae (Jermyn Street Museum), 

 lie. Enlargement. 



The specimens marked " Gardner Collection " in this work are now in the British Museum. 



