bs 
oe 3S eas 
Ea puree ba fh - EP» 
De az > 2S 7 er sess 
Caekee Cpe LP _ BG 
The 15th Class has 2 orders; nie, Sep by the form 
of the pericarp, or s ; as Siliguosa, ne 
pods, as = Wall flower, bas and Siliculosa, sh 
pods, as Honesty, or Satin Veer 
The 16th, ni “be Classes—In these the Orders are 
den een from the number of the stamens, as 
athe a, decandria, polyandria, -&c. 
The 19th "clan tk 5 Orders—distinguished by the 
epithet ruben Intimating, that the flowers 
consist of numerous —— or 
<3 9 Wi | ‘\, 1. Polygamia Zqualis. ‘in this Order, all the florets 
aS Al \ are equally possessed of stamens and pistils; as the 
\ iG 
Dandelion 
2. Polygamia ‘ab hex, —The florets of the disk, or 
central os of the flower, have both stamens and 
pist of the ray, or circumference, have 
only ae: but the latter, as well as the former, 
produce fertile seeds; as the China Aster. 
3. Polygamia FruttinedIThe florets of the disk have 
both stamens and pistils; those of the ray neither 
one nor the other, or are only ae et 
le, and forms the whole into one 
und flower; asin the Globe Thistle. 
The 20th re 2ist Classes. In these, the Orders have 
ceding classes, and are 
distinguished by the number of stamens, or by the 
mina: 
om the number of stamens. The eighth order, 
idonadelpbia by the stamens being united in 
set; as the Juniper, 
ew, &e. 
23. The Order, ‘aeriaed from the number of the 
flowers are distributed among 
three distinct individual plants. 
Linneus devoted the greater part of his life to the 
study of Botany. He was the first who pointed out the 
difference between the natural and the artificial method 
of arranging plants. His sexual system is an example 
15 
orgy for ey since discovered. 
are y 
. And it is to the advantage ‘of the science, 
“or it should, for a long time yet to come, preserve its 
Bernard de Jussieu, the ‘dee of the French botanists, 
deterred, by excess of modesty, from giving his ideas to 
the world, was “we first who labored at a natural system 
of arrangem 
It w: at rive? the year 1759, when he was called 
u as Professor of Botany, to arrange the royal gar- 
den a Trianon, ine he: veniared to (alts any. publicity 
natura! What this 
by his nephew Antony de Jussieu’s 
in 
1738, and was quite aware of his merits, and dis 
to allow them. 
The Natural Orders, as arranged by A. de Jussieu 
rom his uncle’s works are also given in the glossary to 
this work: he has fifteen Classes, and a hundred Orders. 
Orders are mostly named, from some leading Genus, 
which appears to me to be a more satisfactory arrange- 
ment. 
Orders of plants are such as are founded 
on principles of natural affinity ; cpa together, 
i such Genera ve certain 
independent 7 all artificial 
n. 
In the conception of his Orders, Linnews ever kept 
the fructification principally in view, though the names 
of some few of them allude to the habit 
There are fifty-eight Natural Orders of Linnzus. 
NATURAL ORDERS OF LINN.XUS. 
Palme.—Palm 
Piperite. seers suid its allies 
Calamari apts plants, as Curez. 
Grasses. 
ae eee 
