Fig. 7 . " Seed " of perennial Sow Thistle. 

 Enlarged about 12 times. 



Fig. 8. "See 1 of common annual Sow Thistle. 

 Enlarged about 12 times. 



Fig. 9. " Seed " of spiny Annual Sow Thistle. 

 Enlarged about 12 times. 



Fig. 10. Seeds of Bladder Carnpion. 

 Enlarged about 12 times. 



