THE KINSHIPS OF THE FLOWER 



201 



also shown (from 3 to 1) in Fig. 147. The water 

 lily is not the only plant which shows similar 

 gradations; from which we may conclude that 

 leaves, sepals, petals and stamens 

 appear to be derived from the same 

 type of plant member, or are seri- e 

 ally related to each 

 other. 



230. The canna 

 flower should be 

 studied in this con- 

 nection (Fig. 196) . 

 ovary is at p, the sepals 

 at s, three pointed petals 

 at c c c, and the style at 

 e. An anther locule is 

 plainly shown at /, and in 

 the live plant this is very 

 conspicuous. The organ 

 which bears it, therefore, 

 must be a stamen. But 

 this stamen is a leaf- like 

 body, and extends beyond 

 the anther into a more or less curled, petal -like 

 colored part. This extension of the stamen is 

 thought by some botanists to be a transformed 

 anther locule, and by others to be an outgrowth 

 of the filament ; but whatever its morphology, 



Fig. 196. 

 Canna flower. 



