324 



LJSSSOJVS WITH PLANTS 



the plantlet is "coming up." This loop soon be- 

 comes conspicuous, as in Fig. 345. The gardener 

 is now able "to see the row," and tillage 

 is begun. ^ 



395. The loop elongates, but the tip 

 of it is held firmly in the soil, and the 



,j,.:^,.^. whip -lash performance, shown in 

 $^^^ Fig. 346, is the result. The lash 

 JsiMffii finally breaks loose, and the plant- 

 v^^^ let straightens up, as in Fig. 347. 

 '^^, If the plant is watched for a few 



I^II'Mfl days, the observer will discover 

 WW^ that the subsequent growth does 



Sprouting 

 onion seed. 



not take place from the large 

 part, d, but from a new mem- 

 ber, e, which arises from a chink 



23 



loop is not a stem, 

 fact, a cotyledon ; 

 the seed- coats are 

 of the ground, and 

 days on the tip of 

 part, e, then is 



Fig. 344. 

 Tlie loop 

 breaking 



in the base of the plantlet through the 

 (near a in Figs. 343, 344). The ^'■'"""*' 



therefore. It is, in 

 and in mellow soil 

 usually pulled out 

 are held for some 

 the cotyledon. The 

 the pkimule. 



395o. There are sev- 

 nation of the onion, some 

 the engravings, which the pupil should discover and interpret for 

 himself. At what point, for example, are the seed-coats attached ? 



eral points in the germi- 

 of which are suggested in 



