FIG. LXIV. Sisyrfnchium Bermndiana : 2, vertical section of the perianth, show- 

 ing the ovary (0, inferior), the 3 united stamens, etc. ; 3, the ovary dissected ; 4, cross- 

 section of the capsule ; 5, a seed dissected, showing the embryo ; 6, plan of the flower 

 of an Iris. 



245 



