BRiTTON AND ROSE 



i» 



PLATE XXII 



1 



M. E. Eaton del. 



y 



1. Joints of Opuntia microdasys . 



2. Flowering joint of Opuntia macrarthra 



3. Fruit of Opuntia macrarthra. 



4. Seed of same. 



5. Flowering joint of Opuntia opuntia. 



(All natural size except 4.) 



* MOSM A CO. 



