12 



of the florets j and each is illustrated in its proper 

 place. 



The Orders of Class XX. XXI. and XXII. are al- 

 most entirely distinguished by the number of their 

 Stamina. 



The Orders of Class XXIII. are distinguished upon 

 the principles of the two preceding classes, and being 

 three, are called Monoecia, Dioecia, Trioecia. 



The Orders of Class XXIV. are professedly natural, 

 and in the Linnaean arrangement are four; Ferns, 

 Mosses, Flags, and Fungi. In this class Dr. Smith 

 has made five orders in his ' Introduction to Physio- 

 logical and Systematical Botany,' a work highly to be 

 recommended, as being the best elementary book on 

 the subject, upon scientific and philosophic principles, 

 in the English language. 



At the top of each Plate is engraved the Class, 

 Order, and English name of the plant; and under- 

 neath, the scientific or botanical name. 



