16 
Fic. 12.— Corn plant. ¢, tassel 
consisting of staminate flowers; e, 
ears on which the pistillate flowers 
are found. 
FLOWERS 
described as supervor. Such 
flowers are hypogynous. In 
some flowers, as in the Peach 
shown in Figure 7, the calyx, 
corolla, and stamens are at- 
tached to the rim of a cup- 
like structure surrounding the 
ovary. In this case the flower 
is perigynous, and the ovary 
is described as half inferior. To 
which of the above classes does 
the Apple flower belong? In 
Figure 11 the three positions 
of the perianth and stamens in 
reference to the ovary are shown 
for comparison. 
Some Particular Forms of 
Flowers 
That there are numerous 
differences among flowers is 
shown by the fact that largely 
upon differences pertaining to 
flowers, the Flowering Plants 
have been divided into many 
classes, such as orders, which in 
turn are subdivided into fami- 
lies, then into genera, and 
finally into species of which 
there are more than 100,000. 
The differences are mainly struc- 
tural, and between flowers of 
different families they are often 
quite prominent. For example, 
when such flowers as those of the 
Grass, Bean, Sunflower, and 
Orchid family are compared, that there are peculiar differences 
in the character of flowers is obvious. 
Grass Flowers. — One of the characteristic features of the 
Grass flowers is, that there are no showy organs. 
Grass flowers 
