BRITTON AND ROSE, VOL. IV 
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. Eaton del, 
Flowering plant of Neomammillaria pseudoperbella. 
Top of flowering plant of Neomammillaria spinosissima, 
. Flowering plant.of Veomammillarta dealbata. 
3. 
6. 
Flowering plant of Neomammillaria amoena. 
Flowering plant of Neomammillaria polvedra. 
Flowering plant of Veomammiillaria celsiana. 
