o a 



*Fig. 64. 



Red Clover: (1) side view and (2) edge view of seeds; 

 (3) the triangular form indicated; (4) a seed cut length- 

 wise; (5) a seed cut crosswise, showing the embryo; (a) 

 a seed scar; (b) a stemlet (radicle) of the embryo; (c) 

 seed leaves (cotyledons) of the embryo; (6) a pod of 

 red clover; (7) natural size of seeds. 



Alfalfa: (a) individual seeds showing variation in 

 form; (b) edge view of a seed, showing the scar; 

 (c) natural size of seeds. 



*Fig 66. 



Alfalfa — plump and shriveled : (a) well- 

 filled, plump seeds; (b) cross section of 

 a well-filled seed, showing the thick 

 embryo, (e) ; (c) shriveled seeds — thin 

 and having a wrinkled seed coat; (d) 

 cross section of a shriveled seed, show- 

 ing the thin, worthless embryo, (e). 



• 





 o 



•Fig. 67. 

 White Clover. 



•Adapted from Farmers' Bulletin 382. 



109 



