PLATE XII. 



10 



Onagra lamarckiana X Onagra cruciata (No. 3-21). 



i, 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 ?a) ; 8, petals of mininum size ; 9, unopened flower-bud; 10, capsule 

 i to 4, one-half natural size; 5 to 10, natural size. 



