FEED AND SEED SELECTION 43 



"Cuscuta arvensis is another dodder as destructive 

 when once estabHshed. Its seeds (p. 47) seem to be less 

 common, however. They are larger than the preceding, 

 many of them being practically the same size as the 

 smaller, more rounded alfalfa seeds, which they often 

 strikingly resemble. Thus they are hard to detect, and 

 cannot be removed without the loss of much small alfalfa 

 seed. This should be the more dreaded of the two dod- 

 ders, because alfalfa seed infested with seeds of Ciis- 

 cuta epithymum can be made practically free from them 

 with comparatively little loss and expense. Not so, how- 

 ever, with seed containing Cuscuta arvensis, which should 

 not be purchased at any price. Dodder seeds can scarcely 

 be regarded as an adulterant, yet as an impurity they are 

 very common and most objectionable." (See illustra- 

 tions opp. pp. 45, 46 and 47.) 



