284 



BOTANY, 



CLASSES. 



17 DiADELPHiA. This class ""i 

 contains four orders. — 

 Stamens in tico setts. All 

 the plants of this class 

 have Papilionaceous, or 

 Butterfly-shaped flowers, 

 which readily distin- 

 guishes them from those 

 of class X. Not any of 

 this class are known to 

 be possessed of noxious 



ORDERS, 



qualities. 



J 



Pentandria, Hexandria, 

 OctandriUj Decandria. 



18. PoLYDELPHiA. This class "^ 



contains four orders.- I ^''^""dria, Dodecan- 



y dria, Icosandn'a, Po- 



ly andria. 



Stamens in several de- 

 tached bundles. 



J 



19. Syngenesia. This class "^j 

 contains live orders. The 

 flowers are all compound, 

 that is, the common calyx 

 contains a number cf 

 florets, w hich in the first 

 order are all perfect : in ^ 

 the second order the 

 florets of the disk are 

 perfect, and those of the 

 radius, only Pistiliferous: 

 the third has the florets of 

 the disk perfect, and those J 



Polygamia tequalis ; 

 Polygamia super jliiu; 

 Polijgamia frustra- 

 nea; Polygamia ne- 

 cessaria ; Polygamia 

 se":res.ata. 



