Bui. 107, Bureau of Plant Industry, U. S, Dept. of Agriculture. 



Plate IV. 



Fig. 1. -Oregon Grape (Berberis 

 aquifolium '. 



Fig. 2.— Blue Cohosh iCaulophyllum 

 thalictroides'. 



Fig. 3.— Canada Moonseed iMeni- 

 spermum canadensei. 



Fig. 4.— Hydrangea 'Hydrangea 



ARBORESCENSi. 



