294 



INDEX OF PLANT NAMES. 



Wood-betony, 246. 

 Wood-sage, 238. 

 Woodwardia, 130. 



Xanthium, 11. 



Yarrow, 255. 



Zea Mays, 3. 

 Zizania aquatica, 157. 

 Zygnema, 103. 



