CHAPTER XXI 



THE OVARY 



1. The centre of the flower is usually occupied, 

 as we saw it was in C^SALPINIA, etc., by the ovary. 

 At the top of the ovary is a slender rod, the style, 

 and this ends in a small or large, sticky, part or the 

 stigma. 



The 1 ovary itself is a case, either completely hollow 

 or divided up into compartments, cells. That of 

 C^SALPINIA or POINCIANA, for 

 instance is ' one-celled ', that of GOS- 

 SYPIUM the Cotton plant, nearly 

 always three-celled, of HIBISCUS 

 five-celled. Inside the ovary, the 

 seeds are attached walls along one 

 or more slightly thickened ridges, 

 called placentas. 



If these are on the outer wall of. 

 the ovary as in IONIDIUM, PAPAVER 

 the Poppy, ARGEMONE, or CUCUMIS 

 the Cucumber, the arrangement or 

 FRUIT OF ARGEMONE placentation of the seeds is said to 

 MEXICANA be parietal. 



FIG. 49 



