BRITTON AND ROSE 



PLATE XIV 



r 



*»• E. Eatoa del. 



1. Flowering branch of Opuntia Imrrageana. 



2. Opuntia cylindrica. 



3, 4. Joints of Opuntia siayilyi. 



5. Flowering joint of Opuntia macrorhiza 



4. \ 



(All natural size.) 



