BOTANY. 



CLASSES. 



22. DiOEicA. This class con- 

 tains fourteen orders.— 

 The class is composed of 

 such plants as produce 

 Stameniferous flowers on 

 one plant, and Pistilife- 

 rous ones on another. 



ORDERS. 



Monandria, Dtandria, 

 Tiiandria, Tetran- 

 driUy Pentandria^ 

 Hexandna, Octan- 

 y dtia, Enneandria^ 

 Decandria, Dodecaji- 

 dria, Polyandriu^ 

 MonadelphiUy Synge- 

 nesiOj Gynandria. 



23. PoLYGAMiA. This class 

 contains three orders. 

 This class consists of such 

 plants as produce Perfect 

 flowers, as also Stameni- 

 ferous and Pistiliferous 

 flowers. In those of the 

 first order, these three 

 kinds of flowers are pro- 

 duced on one plant, in 

 iu the second on two 

 plants, and in the last 

 order each kind is on a 

 distinct plant. 



24. Cryptogamia. This class 



contains four orders. 



MonceciOy Diceciay 

 Tricecia. 



Filkes, Musciy Algie^ 

 Funsi. 



The distinguishing characters of this class are, that flowers 

 are either wanting, or so exceedingly small as not to be dis- 

 coverable to the eye, unassisted by the Microscope; and they 

 are destitute of those parts considered as essential to the per- 

 fecting of Seed in the plants contained iji the other classes. 



