THE FLOWEEING PLANT — FLOWERS 371 



Are there any variations from this color ? Do all 

 the parts of the flower have the same color ? Is 

 it always the same part that is colored ? To what 

 is the color due ? Crush one of the colored parts 

 by pinching it between the thumb and finger. 

 Does the color change ? Why ? Does the color 

 change as the flower gets older ? Why ? Of what 

 use is the color ? 



e. Odor. — Has the flower a well-defined odor? Is it 



characteristic ? Is it a strong odor ? Agreeable 

 or disagreeable ? Is it confined to any particular 

 part of the flower ? Does it vary in intensity at 

 diiferent times of the day ? Why ? Of what use 

 is it? 



f. Structure. — Proceeding from below upwards make 



out the following parts : 



1. The pedicel or flower-stalk. — What is its shape ? 



Color? Length? Diameter? Do any of these 

 vary in different flowers? Of what use are 

 these various characters ? Draw a pedicel de- 

 tached from other parts. 



2. The flower proper. — Note that it consists of 



certain organs arranged in groups. How are 

 these organs distinguished from one another ? 

 What is the shape of the groups? In what 

 manner are they attached to the pedicel ? Note 

 the expanded end, or receptacle, of the pedi- 

 cel. Proceeding from without inward, make 

 out the following parts of the flower proper : 

 (a) The calyx or green part. — On what part of 

 the flower is it found ? Is it evenly green in 

 color ? What is its shape ? Of what is it made ? 

 Does it consist of distinct parts or sepals? 



