PLATE XIL 



Prom the Lower Bagshot, Alum Bay. 



Figs. 1 — 0. Marattia Hookeri, Ett. and Garcl. (British Museum^). 

 2 a and 4 a. Apices of pinnse enlarged. 

 4 h. Part of pinna enlarged. 



6 a. Enlargement from a specimen showing secondary venation. 



Prom the Middle Bagshot, Bournemouth. 



7. Adiantum apalopliylhm, 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. Podoloma pohjpodioides.'^ii. and Gard. Enlargement of veins beneath sorus. 



11. Pteris eoca/iica,'Ett. and Gard. Fragment showing the relative proportion of 



terminal and lateral pinnse (Jermyn Street Museum). 

 II a. Enlargement. 



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



