HOW PLANTS OBTAIN THEIR FOOD. lO^ 



Seedlings of castor-oil bean casting the seed coats, and showing papen.' remnant 

 of the endosperm. 



Fig. 96. 



Seedlings of jack-in-the- 

 pulpit ; embryo backing out 

 of the seed. 



Fig. 97- 

 Sirction of germinating embr\'os 

 of jack-in-the-pulpit, showing voung 

 leaves inside the petiole <:>f the 

 cotyled^.»n. At the left cotxied^in 

 shr.iwn surrounded b\' the endi-">- 

 sperm in the seed, at right endo- 

 sperm removed to show the club- 

 shaped cotyledon. 



