36 
MANUAL OF NATURE STUDY. 
the top of each stamen, that is called the anther. 
How many anthers are there? The anther is filled 
with a yellow powder, or very small grains, called 
pollen. Which way does the anther in the Spring 
Beauty open? 
The little thread-like stalks that support the 
anthers are called filaments. How many filaments 
are there? How many anthers? What are an¬ 
thers and filaments together called ? What are the 
petals together called ? Which whorl is called the 
calyx ? Which the corolla ? Which the stamens? 
How many parts in each whorl ? What are the 
parts in each w T horl called ? 
There is now one thing more for us to learn, and 
that is, the little stalk, which is large a the bottom, 
slender in the middle and divided into three parts 
at the top. This stalk is called the pistil. It 
looks like the pestle that the druggist uses to mix 
medicine with. Perhaps that is the reason it is 
called pistil. (From Latin Pistillum, which means 
a pestle. The word first came into use for such 
flowers as those of Fritillaria Imperialis, or crown 
imperial, where the pistil resembles a pestle and 
the perianth around it a mortar of an apothecary.) 
The large part at bottom of flower cup is called 
ovary, or little seed case, the slender part above is 
called the style, the three parts at top are called 
