FIG. 14 — WEED-SEEDS 

 a, Peppergrass (Lepidinm virginicum) ; b, Slender Rush (Juncus tennis) ; 

 C Velvet-grass {Holcns lanatus) ; c/, Fivefinger (Potentilla monspe/iensis) ; 

 <?, Oxeye Daisy (Chrysanthemum lencanthemnm) ; /, Sorrel (Rumex 

 acctosella); g False Flax (Camelina sativa) \ h. Canada Thistle 

 ( Ca ttrf m a rvensis) . 



67 



