BRITTON AND ROSE, VOL. II 



M. E. Eaton del 



1. Flowering branches of Rathbunia alamosensis. 



2. Flowering branches of Rathbunia alamosensis. 



3. Top of flowering branch of Borzicactus acanthurus. 



4. Top of stem of Arrojadoa rhodantha. 



(All natural size.) 



