572 



system of Linnaeus, is here of no avail but to an adept. 

 This will abundantly appear as we trace the leading prin- 

 ciples of this celebrated method, of which we shall now 

 attempt a concise exposition. 



THE SYSTEM OF JUSS1EU 



Consists of fifteen classes, which are composed, all toge- 

 ther, of one hundred orders. The characters of the classes 

 depend first on the number of cotyledons ; next the num- 

 ber of petals, and the situation, or place of insertion, of 

 the stamens and corolla. 



The author uses the term stamina hypogyna for such 

 stamens as are inserted into the receptacle, or below the 

 germen, which therefore we shall call inferior stamens ; 

 stamina perigyna, (around the germen,) are inserted into 

 either the corolla or calyx, the germen being superior ; 

 these we must denominate perigynous; stamina epigyna, 

 superior stamens, are inserted above the germen, which 

 latter is therefore, in Linnaean language, inferior. The same 

 terms apply to the corolla, which when inserted into the 

 calyx is denominated perigynous. The following table will 

 show the characters of Jussieu's Classes : 



Cotyledons none. 

 Class 1st. 



Cotyledon one. 



Class 2nd. Stamens inferior. 



3rd. Stamens perigynous. 



4th. Stamens superior. 



Cotyledons two, {or more). 



Class 5th. Petals none. Stamens superior. 



6th. ■ Stamens perigynous. 



7th. Stamens inferior. 



! 8th. Corolla of one petal, inferior. 



9th. — — , perigynous. 



