INDEX TO PLATES 



(The magnifications given are approximate only) 

 FRONTISPIECE 



PIQ. 



1. Moss plant, with capsule Dicranella varia (x 10). 



2. Liverwort, cup and capsule Lophocolea heterophylla (x 10). 



PLATE I 



MOSS DEVELOPMENT, AS ILLUSTRATED BY THE 

 PURPLE FORK-MOSS {CERATODON PURPUREUS) 



FIG. 



1. Flower (x 12-8). 



2. Ripe Fertilising Organs (Antheridia) (x 66). 



3. Empty Fertilising Organ (Antheridium) (x 66). 



4. Fruit-bearing Organ (Archegonium) (x 66). 



5. Fertilised and unfertilised Fruit-bearing Organs (Archegonia) 



(x 66). 



6. Fertilised Fruit-bearing Organ (Archegonium), more advanced 



(x 66). 



7. Plant with Veil (Calyptra) (x 12-8). 



8. Sheath (Vaginula) (x 12-8). 



9. Young Capsule and Veil (Calyptra) (x 12-8). 



10. Veil (Calyptra) (x 12'8). 



11. Capsule and Lid (Operculum) (x 12-8). 



12. The Ring (Annulus) (x 66). 



13. The Lid (Operculum) raised by the Ring (x 12'8). 



14. The Lid (Operculum) (x 12-8). 



15. Capsule and Peristome (dry) (x 12-8). 



16. Peristome (dry) (x 26). 



17. Capsule and Peristome (moist) (x 12-8). 



18. Peristome (moist) (x 26). 



19. Peristome Teeth (x 91-4). 



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