FIGURES ILLUSTRATING THE DEVELOPMENT OF 

 THE SEED AND THE GERMINATING PROCESS 

 OF RHIZOPHORA AND BRUGUIERA 



(Natural size. Drawn for convenience of description in the erect position.) 



Rhizophora mucronata . Fruit 3^ lines (8-9 mm.) high, six to seven \\eeks after 

 fertilisation. The micropyle is but slightly dilated, and is 

 occupied by a small plug of endosperm. 



,, Seed of fruit represented in Fig. i. 



,, Fruit5 lines (12 mm.) high, eight to nine weeks after fertilis- 



ation. Germination is about to begin. A large plug of 

 endosperm now protrudes through the dilated micropyle, 

 but still covers the lengthening hypocotyl. 



4- 1 

 5. / 



9A 

 91! 

 9C 

 9 



^j 



Seed of fruit represented in Fig. 3. In Fig. 4 the plug of 

 endosperm is shown on the upper end of the seed ; whilst in 

 Fig. 5 it has been removed, exposing the tip of the 

 hypocotyl. 



Fruit 74 lines (18 mm.) high, eleven to twelve weeks after 

 fertilisation. 



Fruit, seventeen or eighteen weeks after fertilisation. 



Full-grown fruit with upper portion of seedling just before 

 detachment from the tree. The long tapering plumule is 

 here inclosed in the cotyledonary body. The * indicates 

 the point of detachment of the seedling. 



The cotyledonary body of Fig. 8. 



f Illustrating different stages in the development of the 

 plumule and of the neck of the cotyledonary body resulting 

 finally in the expulsion of the plumular end of the seedling 

 from the fruit cavity as in Fig. 8. (See page 458.) 



Fruit with two seeds. 



