[Chap. XLI 



NON-GREEN PLANTS 



505 



Fig. 219. Species ot dodder {Cusciita) grow as parasites on numerous green 

 plants. The slender yellow stems of the one pictured here form a loose net among 

 the broad leaves of the host (Abronia). Photo by W. S. Cooper. 



Fig. 220. Squaw-root or cancer-root (CouoplioU.s) , parasitic on roots of oak. 

 Flowers are present on the plants pictured on the right. Photo by G. S. Growl. 



