ANGIOSPERMAE 



631 



Nymphaea alba, the White Water Lily (Figs. 632, 633), has large floating leaves 

 and white flowers, protected by firm green sepals. Within the corolla comes the 



FIG. QB-2.Nt/i,iph<iea alb-.i (i uat. si/e.) The spiral arrangement of the stamens and petals 

 is shown by their insertions on the ovary to the left. 



zone of numerous stamens and the inferior ovary composed of numerous, coherent 

 carpels. The spiral arrangement of the members of the perianth and androecium 



FIG. (333. Xyiitph'iea. 

 Floral diagram. (After 

 NOLL.) 



FIG. 634. .4, Floral diagram. B, Fruit of Cabomla aquatic 

 showing two carpels developed as partial fruits, (x 4 

 After BAILLOX.) 



is seen by the scars of their insertion when they are removed from the inferior 

 ovary (Fig. 632), and in the floral diagram (Fig. 633). In Nuphar the ovary is 



