FIG, IT4—WEED-SEEDS 
Peppergrass (Lepidium virginicum); 6, Slender Rush (Juncus lenuts) ; 
c, Velvet-grass (Holcus lanatus); d, Fivefinger (Polentilla monspeliensts ) ; 
e, Oxeye Daisy (Chrysanthemum leucanthemum); f, Sorrel (Rumex 
acetosella) ; 
g, False Flax (Camelina 
saliva); h, 
(Carduus arvensts). 
Canada Thistle 
67 
