BRITTON AND ROSE, VOL. II 



1. Flowering stem of Cephalocereus pentczdrophorus . 



2. Top of stem of Cephalocereus gounellei. 



3. Top of stem of Cephalocereus bahamensis, with flower. 



4. Fruit of Cephalocereus deeringii. 



(All natural size.) 



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