\ 



BRITTON AND ROSF 



PLATE VI 



\ 



^' E. Eaton del. 



A-W^S^fc ^ 



1,2 

 3.4 



Branches of Opnntia m&rtolensis . 

 Branches of Opuntia leptocaiilis. 



5. Flowering branch of Opujtiia arbuscula. 



6. Flowering branch of Opuntia kUiniat. 



(All natural size.) 



