AUGUST. 
177 
— sir 
the cavity, where they form a bundle in the centre of the flower. Each of 
these ovules, after fecundation and development, contains a seed. 
Now, if you ask what organ it is that constitutes this large hollow body, 
we reply, It is the tube of the calyx, that 
portion of it formed by the union of the 
five blades, and the upper parts of which 
are free, and sometimes fringed, forming 
what is called “ the moss” on the Moss 
Rose. 
With the Peak we shall conclude this 
lesson, and those plants that belong to 
the Rose family. It 
matters not whether 
^ jt you take the Pear, the 
Apple, or the Haw¬ 
thorn. We shall, how¬ 
ever, take the Pear 
(Pyrus communis, 
fig. 9). 
Here you meet with CA ' 
a structure analogous ° v — 
to what you found in 
the Rose. Pluck off 
the petals {fig. 10, p), 
and you will then see 
that they are inserted 
at the same point as the stamens (st), which are just like those of the Straw¬ 
berry, the Rose, and the Plum; but the parts of the central organ are less 
numerous. In the Rose you found an indefinite number, but here there are 
only five. Cut the flower in halves, as is represented in jig. 8, and you will 
see that the five styles (sty), correspond with the five 
ovaries (o), which occupy the hollow cavity of the base 
of the calyx. 
The five pistils, 
or central or- 
gans, when 
young, only 
slightly adhere 
together, and 
with the calyx; 
but soon thev Fig. 10.—Section of the 
• " flower of the Pear. 
in- 
Fig. 7.—The Rose. 
Fig. 8.—Section of the 
flower of the Rose. 
grow 
and 
Fig. 9.—Flower of the Pear. 
crease in size, so that they become 
compressed one 
against the 
other, that the 
whole becomes 
consolidated, 
and ultimately 
forms the fruit 
which we call 
pear, 
a 
or an 
Fig. 11.—Section of the 
pistil of the Pear. 
apple, or quince, or haw. The five free pieces of the calyx do not, however, 
participate in this consolidation; they wither and dry up by degrees, as well 
