PLATE VI. 
Fig. 1. Pteris Aquilina. A. Ditto, magnified. 2. Aliosorus Crispus. B. Ditto, mag- 
nified. 3. Adiontum Capillus Veneris. C. Ditto, magnified. 4. Ilymenophyllum Fun- 
bridgense. D. Ditto, magnified. 5. II. Wilsoni. 6. and E. Trichomanes Brevisctuin. 
7. and F. Osmunda Regalis. 8. and G. Botrycbium Lunaria. 9. and II. Ophioglossuni 
Vulgare. 10. O. Lnaltanicum. 
