BRITTON AND ROSE, VOL. Ill 
PLATE V 
3 . 4 
m. e. Eaton del. 1 . Top of flowering plant of Echinocereus engelmannii. .iJom&cd 
2. Flowering plant of Lobivia corbula. 
3. Flowering plant of Lobivia pentlandii. 
4. Flowering plant of Lobivia lateritia. 
(All natural size.) 
