BRITTON AND ROSE, VOL. IV 
M. E, Eaton del. 
1. Flowering plant of Escobaria dasyacantha. 
2. Fruit of Dolichothele sphaerica. 
2a. Seed of same. 
3. Flowering plant of Neomammillaria arida. 
4. Flowering plant of Zscobaria bella. 
ION 
PLATE Vil 
Tubercle of same. 
Flowering plant of Neomammillaria crocidata. 
Flowering plant of Bartschella schumannit. 
Flowering plant of Neomammillaria carnea. 
