Testing Farm Seeds. 



365 



The smaller broad-leaved plantain seeds (fig. 21, d) are similar to those of 

 rat-tail plantain (fig. 18, 1), but are smaller, greenish or brown, the surface 

 Slaving slender, wavy dark lines; common in poorly cleaned clover and grass 

 seed. 



Bracted plantain seeds (fig. 21, e) are similar to those of buckhorn (fig. 

 a8, m), but they are broader, dull reddish-brown, and the broad groove on one 











iip. ;^ 



Fig. 21. — Other weed seeds commonly found in farm seeds (No. 3) : a, Catmint; b, 

 healall ; c, rough-leaved toadflax ; d, smaller broad-leaved plantain ; e, bracted 

 plantain; f, dwarf plantain; s. field madder; h, cleavers; i and j, wild corn 

 salad ; k, poverty weed ; 1, black-eyed Susan ; m, dog fennel ; n, field camomile ; 

 o, scentless camomile; p, corn flower; q, cat's-ear ; r, oxtongue; s, hawkweed 

 picris; t, hawkweed. (Enlarged and natural size.) 



face is bordered by a white stripe; the rounded face is crossed near its center 

 by a shallow groove; common in American-grown red clover seed; sometimes 

 found in alfalfa and grass seeds and occasionally in imported seed; a common 

 annual plant of light lands. 



