BRITTON AND ROSE, VOL. 



PLATE xxv 



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.) 



