PLATE XII. 



6' 



?a 



8 



9 



Onagra lamarckiana X Onagra cruciata (No. 3.21). 



1, leaf from young rosette; 2, leaf from median portion of mature rosette ; 3, leaf from upper portio 

 of mature rosette ; 4. stem-leaf ; 5, bract ; 6, flower with petals, removed (see 6a) ; 7, flowe 

 with petals removed (see 7a); 8, petals of mininum size; g, unopened flower-bud; 10, capsule 

 1 to 4, one-half natural size; 5 to io, natural size. 



