28G 



BOTANY. 



CLASSES. 



22. DicEicA. 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, Diandria, 

 Triandria, Tetran- 

 dria, Peniandria, 

 Hexandria, Octan- 

 ^ dria, Enneandria, 

 Decmidria, Dodecan- 

 dria, Polyandria, 

 Monadelphia, Synge- 

 nesia, Gynandria. 



23. PoiTGAMiA. 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 

 in the second - on two 

 plants, and in the last 

 order each kind is on a 

 distinct plant. 



24. Cryptogamia. This class 



contains four orders. 



Moncscia, Dioecia, 

 Trioecia. 



Filicesj Muscij Algee, 



Fungi. 



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 ia the other classes. 



