INDEX. 



637 



Page. 

 Woodsia 82 



Woodwardia 79 



Woolly larch 92 



Wormwood 586-590 



Wyeth, collection of plants on Flathead 



River 14 



Wyethia 581 



Xanthium 550 



Xerophyllum 197 



tenax 60 



Yellow cedar. 91 



Page. 



Yellow dock 225 



Yellow pine 92 



forests 50-51, 53 



Yerba buena 493 



Yew family 89 



western 89 



ZannlcheUia 99 



Zizia 427 



Zonal distribution of plants in Washington. 33-65 



Zones, life, North American, scheme 34 



Zostera 99 



Zygadenus 197 



o 



