THE GENERAL CHARACTERS OF SEEDS 



455 



Common Vetch (Vicia sativa L.). 



Pod linear, several-seeded; seeds nearly spherical or compressed 

 on the sides, variable, blackish to brownish. 



Fig. 312. Common Vetch (Vicia sativa). 

 (After Hillman, Circular U. S. Dept. Agr.) 



Hairy Vetch (Vicia villosa Roth.). 

 Seeds spherical to subspherical ; one-tenth to one-sixth in. in diam- 

 eter; blackish or brownish, surface smooth; scar elongated, repre- 





V 



Fig. 313. Hairy Vetch (Vicia villosa). 

 (Hillman, U. S. Dept. of Agriculture.) 



sented by a narrow line slightly elevated, with depressed center, 

 light in color, brownish to straw-colored. 



Trailing Wild Bean (Strophostyles helvola (L.) Britton). 



Pod terete, 5-7.5 cm. long, nearly glabrous, 4-8-seeded, dark 

 brown; seed cylindrical, rounded, truncate at both ends; length 

 6 mm., width 4.5 mm.; color dull brown slightly mottled; narrow 

 white scar along inner angle, nearly the entire length of the seed; 

 seed strongly angled longitudinally on side opposite scar. 



Fig. 314. Wild Bean (Strophostyles helvola). 

 (Drawing by L. R. Collins.) 



