THE GYMNOSPERMAE : CYCADALES, ETC. 



775 



Tube of inner 

 integument 



Outer integument 



Bract 

 Nucellus 

 Embryo sac 



Fig. 776. — Welwitschia mirabilis. Longi- 

 tudinal section of a female strobilus 

 showing ovules in the axils of bracts. 



{From Church, " Phil. Trans. Roy. Soc," B, 

 205, by permission 0/ the Royal Society.) 



® 



® 



B 



Pig -^-j-j.— Welwitschia mirabilis. Floral diagrams of A, Male flower. 

 B, Female flower. {After Arber.) 



