10 THE GROWTH AND PARTS OF PLANTS 

Fig. 18. Maize seeds germi- 
nating under glass, the left- 
hand seed upside down. 

of the seed as a small, white, slen- 
der, pointed object. It comes from 
the same spot in every seed of one 
kind. In the sunflower, marrow, 
buckwheat, and maize 1t comes from 
the smaller end of the seed. In the 
bean it comes out from the hollowed, or 
concave, side. As soon as the root comes 
out it grows directly downward, no mat- 
ter which way the seed happens to lie. 
When the seeds are placed in the 
Wie. 19, Laterstage lamp chimney, or In a box with a glass 
of Fig. 18. 
position desired. 
that have been 
placed in different 
positions. When 
the roots have 
grown an inch or 
more in length, 
sketch some of the 
different positions. 
Is there any ad- 
vantage to the 
plant in having 
this first root grow 
_ downward? 
side, they can be easily held im any 
It will be interesting to watch seeds 

Fic. 20. Still later stage of Fig. 18. 

‘J 
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