

LINNJEAN ARRANGEMENT. 33 



DO'DECAGY'NIA. About twelve styles. 

 POLYGY'NIA. More than twelve styles. 



It is unnecessary here to explain the orders of the other 

 classes, as the circumstances on which they are founded will be 

 seen by referring to the following Systematic Arrangement of 

 British Plants. 



The Genera are -characterized by marks taken from the parts 

 of fructification exclusively, that is, from the calyx, corolla, 

 stamens, pistils, fruit, seed, nectary, and receptacle. 



The Species are distinguished from each other by characters 

 taken from any or all the parts of the plant. 



The Generic Character is of two kinds : the essential, which 

 is short, and consists of the more distinctive circumstances ; 

 and the natural, which consists of a more or less full descrip- 

 tion of all the organs of fructification. 



The Specific Character is brief, and consists of the circum- 

 stances by which one species is distinguished from every other 

 of the same genus. 



An arrangement of the genera of British Plants according 

 to the Natural Method will be found at the end, after the 

 Glossary and Index. 



I) 



