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METHOD OF JUSSIEU. 
METHOD OF JtSSIEC. 
The natural method consists in bringing together such plants 
as seem by nature to be constituted one family, resembling each 
other in general appearances and medicinal qualities ; as^lilies, 
herbs, trees, mosses and ferns. Some of these natural families 
show a similarity in form and quality, and are evidently distinct 
from all others. If the whole vegetable kingdom could thus be 
distributed into natural tribes, we should need no other system 
than that of nature. But as we proceed on this plan we soon 
find difficulties ; for after selecting a few families which nature 
seems to have formed with striking marks of resemblance, we 
find others more obscure, and we at length see a vast number of 
plants which cannot be referred to any natural families. 
There are two natural methods of Classification, viz. those of 
Linnams, and Jussieu; the arrangement of the latter is highly 
valuable to those who wish to pursue the study of Medicinal 
Botany. 
The characters employed in this method are, 
1. The structure of the Seed. 
2. Insertion of the Stamens. 
3. Absence, presence, and form of the Corolla. 
4. Union or separation of Stamens and Pistils. 
5. Union or separation of the Anthers. 
1. The Seed, considered with respect to Cotyledons .] A 
plant without cotyledons is called, A'cotyledonous, with one, 
Alono' cotyledonous, and with two , Dicotyledonous. 
2. The Stamens are inserted above the germ, under the 
germ, or around the germ: the 1st. is Epi'gynous , the 2d. 
Hypo'gynous, the 3d. Peri' gynous. 
3. A'petalous, having no corolla, Mono'petalous, all of one 
piece, or Poly petaJons, many petals. 
4. Mono' clinious, Stamens and Pistils on the same corolla, 
Di'clinious, Stamens and Pistils on different corollas. 
5. Anthers distinct, or anthers joined. 
T’e phenogamous plants are comprehended under 11 classes. 
The Cryptogamous plants or such as have no cotyledon, com- 
pose one class. 
t The Cotyledons are the thick parts of the seed ; an apple seed, an or- 
ange seed, or a bean, may be easily split into two parts, these are the coty- 
ledons ; rice and wheat cannot be thus split, they have but one cotyledon. 
Many plants cannot be referred to any natural families — Natural ordere 
of Jussieu comprehended under 11 classes^- 
