264 



INDEX. 



W 



Walnut, 83. 



Water, 90, 93, 94, 95, 113, 1.38, 



143, 151, 163, 193, 206, 244. 

 Water lily, 17S. 180, 181. 

 Water reservoirs, 206, 208, S09. 

 Weeds, 147. 

 Willow, .Jo. 389. 

 Wind, 95, 98, 114, 133, 167. 

 Wings, 112, 115, 116. 



Witch hazel, 118, 119. 

 Woodbine, 61, 63. 



Xerophytes, 168, 193, 208 

 Xerophyte .structure, 207. 



Yew, 42. 



Yucca, Jf5, 47, 130, 131, 220. 



