WEEDS IN THE MEADOW. 



>15 



from? ' The answer will be: 'You ciirefully sowed it that cool 

 March day with your clover.' " 



Plants are assisted to become weeds by producing many seeds, 

 by ripening with the ci-op so the seeds are harvested Avith it, by 

 ripening before the crop and scattering seeds on the ground, by 

 producing seeds which are not easily separated by sieves, by pro- 

 ducing very small seeds which escape notice, by having a supply 

 of liairs tliat they may be carried by the M'ind, or some awns or 

 liooks to hold fast to animals, by remaining a long time in the 

 soil without losing their vitality, by i)roducing long or thick roots 

 not easily eradicated, by producing bulbs, or long root stocks, by 

 ^ > ■! g offensive to all kinds of stock so they are allowed to grow 

 and multiply. 



Clay soil is less likely to be troubled than loam or sand. 



Some of the weeds which interfere with the growth of grasses 

 and clovers in the Northern States are here enumerated, with 

 figures of a few and remarks in i-eference to all. 



iJL ft 



Fm. 90. Fto. 04. Fifi. 95. 



Fir,. 90. An acliene or fruit of Tlnmnicvhiff ImUiomtK, L. (Hulbous Trowfoot.) A 

 troublesome perennial with yellow flowers, found in the northeast. Side view and 

 croi-s section, 1x10.— tSudworth). , , , , ,,*•** 



Rmi umulm mris. L. (Tall Crowfoot.) Much resembling the last though destitute 



Fio. 91. 'Bramcanmm,\j. (Black Mustard.) 1 xl.').—(Sud worth. ^ 



Fui. '.»•-». C(iiwe//'i BinM-pastoris, Miench. (Shepherd's Purse.) 1 x;.U-(Sud worth.) 



Fm. 9;!. Hypericum imiUficu)n,\u (Shrubby St. John'H Wort), two views. lxUt>.— 



(Sudworth.) , . , „ , ., , 



Fifi. 94. Sileuc i»tlato, Smith. (Bladder Champion.) 1 xlfl.-(Sudworth.) 



Fi(!. 9,->. Ceraxtiu'm vulaatum, L. (Mouse-ear Chickweed), two views of a seed. 



1x35.— (Sudworth.) 



