96 
THE FIRST BOOK OF BOTANY. 
Sta'mens.— Slender, thread-like parts next inside 
the corolla. 
When there is but one whorl of flower-leaves, 
whatever its color, it is called a calyx. 
What is the receptacle of a flower? What is the 
calyx ? What is the corolla ? What is the part in the 
center of the flower called ? What surrounds it ? 
Look at the picture of half of a large flower in the 
upper left-hand corner of Chart One. It is a butter¬ 
cup, but the picture is much larger than a real flower, 
and all its parts can be plainly seen. Point out the 
receptacle. Point out and give the names of the other 
parts of this flower. 
