INDEX 



113 



Witch-grass, 9 

 Witch-Hazel, 49 

 Woodbine, 59 

 Woodsia, 3 

 Woodwardia, 4 

 Wool-grass, 24 

 Wormwood, 84 



Roman, 83 

 Xanthium, 91 

 Xanthoxylum, 57 

 Xolisma, 66 

 Xyridace.e, 25 

 Xyris, 25 

 Yarrow, 83 

 Yew, 6 



Zannichellia, 8 

 Zizania, 16 

 Zizia, 66 

 Zygadenue, 29 



