PLATE 9 
Washington palms. A scattered growth of Washingtonia filifera Wendl. at 
the upper edge of the valley just below the clay hills showing the associated 
Juncus robustus S. Wats., Imperata hookerii Rupr., Distichlis spicata (L.) Greene, 
etc. North of Indio, Calif., April 20, 1913. 
