21 
ANALYSIS OF THE ROSE. 
which compose the flower ; in the species, the distinctions are 
chiefly drawn from different circumstances of the leaves, stems, 
&c. 
The flowers of two plants may agree so as to belong to the 
same genus, while the leaves, stalks, and branches are very un- 
like, and the plants are therefore considered as of different 
species. 
Thus, in the genus Lilium, the shape of the leaves, the man- 
ner in which they grow on the stem, the height of the stem, the 
number of flowers growing upon a stem, the manner in which 
they grow, whether erect or nodding, and the shape of the co- 
rolla ; all these, and some other circumstances distinguish the 
different species. The colour, which is a quality of the flower 
usually the most striking, is, in botany, little regarded, while 
many other circumstances, which might at first have been 
scarcely noticed, are considered as important. 
In the 11th class, Icosandria, and the 12th class, Polyandria, 
we are to remark, not only the number of stamens, which is 
always more than ten ; but the manner in which they are in- 
serted, or the part of the flower on which they are situated. If 
in pulling off the corolla, the stamens remain upon the calyx, 
the plant belongs to the eleventh class ; but if the corolla and 
calyx may be both removed, and the stamens still remain on 
the receptacle, the plant is of the 12th class. 
It is said that no poisonous plant has the stamens growing on 
the calyx, but it is in this class that we find many of our most 
delicious fruits as the Apple, Pear, &c. 
Analysis of the Rose. 
The Rose, on account of its beauty, is one of the most con- 
spicuous flowers in this class, indeed it is considered as one of 
the most interesting of the vegetable race, and is often dignified 
with the title of “ queen of flowers.” 
You will at once perceive on examining the formation of the 
Rose, with a view to learn its class, that its numerous stamens 
are attached to the calyx. A more perfect idea of their situa- 
tion may be obtained by removing the petals and cutting the 
calyx longitudinally. Therefore, because it has more than ten 
stamens growing upon the calyx, it belongs to the 11th class, 
Icosandria. The pistils being more than ten, it is of the 13th 
order, Polygynia. It belongs to the first genus described under 
this order, Rosa. 
in the species. — New circumstances to be considered in the 11th and 12th 
classes. Analysis of the Rose — why is it in the 11th class ? — why the 13th 
order ? — 
