BRITTON AND ROSE, VOL. Ill 



PLATE V 



M. E. Eaton del. 



1. 



2. 

 3. 

 4. 



Top of flowering plant of Echinocereus engelmannii. 

 Flowering plant of Lobivia corbula. 

 Flowering plant of Lobivia pentlandii. 

 Flowering plant of Lobivia lateritia. 

 (All natural size.) 



