X 





«> 9 



Dodder, Cuscnta arvensis 



(a) A group of seeds (enlarged), showing the prevailing forms ; (a, b, and c) Individual seeds 

 having somewhat the form of clover seeds ; (d) a group showing the natural size. 



Alfalfa and Dodder Seed. Actual Size 



Dodder, Cuscnta epithymum 



(a) A group of seeds, showing comparative forms and relative size (enlarged) ; (b) a group 

 showing the natural size ; (c) the embryo removed from the seed, showing the form it usual- 

 ly assumes ; (d) a section of a seed, showing the manner in which the 

 embryo lies imbedded in the endosperm. 



