THE GENERAL CHARACTERS OF SEEDS 45S 



MALVACEAE, MALLOW FAMILY. 



Velvet-leaf, Butterprint (Abutilon theophrasti Medic.). 



Carpels 2-valved, beaked, each usually 2-seeded ; seeds somewhat 

 triangular, kidney-shaped, one-eighth in. in length, minutely granu- 

 lar and pubescent ; color blackish gray ; f unicle extending to notch 

 of seed. May occur in small grain. 



Figure 320B 



Fig. 320. A. Indian Mallow or Butterprint (Abutilon theophrasti). a, b, c, 

 different views of seed ; d, cross section showing embryo and caulicle ; e, 

 seeds, natural size. 



B. Seeds of Bladder Ketmia. a and b, different views, c, natural size. 

 (After Hillman, Bull. Mich. Agr. Exp. Sta.) 



Prickly Sida (Sida spinosa L.). 



Seeds oval, one-sixteenth to one-twelfth in. long, one face con- 

 vex, the other with a prominent ridge across its length; scar at 

 broad end ; surface dull, smooth ; color brownish. Reported in seed 

 of Missouri red clover. 



iT^^fi 



Fig. 321. Prickly Sida (Sida spinosa). A, different views of seeds. B, a seed 

 in section taken midway between the two extremities, showing embryo and 

 caulicle. C, seeds, natural size. 



(After Hillman, Bull. Nev. Agr. Exp. Sta.) 



