"'T";i"'r"^l 'i\ m 



iiiliiiliiill iilinliiilijl lill 



Fig. 758: Ambrosia psilostachya: A, habit, x i/4; B, raceme of male heads and 

 female involucres, x 2i/^; C, achene, x 3; D, seeds, x 3. (From Reed, Selected Weeds 

 of the United States, Fig. 180). 



