1 
Fig. 73 (b). 
1, ripe fruit; 2, longitudinal section of top of flower-spike; 3, unexpanileil 
flower; 4, expanded flower; 5, bract; 6, petal with its stamen; 7, pollen- 
grain; 8, fruitlet; 9, septum; 10, seed; 11, embryo; 1-2, natural size; 
3-5, 8-11, slightly magnified; G-7, much enlarged. 
