SEEDS AND FBUITS 163 



I. The appearance of the fruit. 



Place some of the fruits in water for an hour, 



and then note : 



a. The general appearance, size, and form. 

 Z?. The outer covering ; is it a distinct mem- 

 brane, or a part of the flesh underneath, 

 as in the husk of the cocoanut ? 

 c. The edible, fleshy portion ; is it attached to 

 the seed? 



II. The seed. 



a. Describe the form of the seed. 



&. Test the hardness and brittleness of the 

 seed and its coats. Crush or break the 

 seed to determine its firmness. 



c. Cut away the coats from the surface of 



the seed opposite the groove, and note 

 the position of the tip of the main root 

 of the embryo. 



d. Cut the seed across and take out the em- 



bryo. Describe its form and draw. 



III. Germination. 



Cut across some of the germinating seeds in the 



same manner, and note : 

 a. Absorbing organ, the cotyledon, here as 



