fa GRAMMAR OF 



LINNEAN SYSTEM OF VEGETABLES. 



All Vegetables are divided into twenty -two* CLASSES, 

 These CLASSES are divided into ORDERS. ORDERS are 

 divided into GENERA; GENERA are divided into SPE- 

 CIES. SPECIES are frequently changed into varieties. 

 Varieties, however, are more properly within the pro- 

 rince of the Gardener, than of the Botanist $ at least the 

 method of procuring varieties. 



When a Botanist finds a plant which he never saw be- 

 fore and wishes to know its name and uses $ he proceeds^ 

 as follows. 



1. Retakes the unknown flower in his hand, (no un- 

 known plant can be ascertained without the flower,) and 

 compares its parts with the description of each class, un- 

 til he finds the class to which it belongs. 



2. He then goes to the orders of that class and finds- its 

 order in the same way. 



3. If the order in which he finds his plant is sub-divid- 

 ed into sections, he reads the characters of the sections 

 also. 



4. Next Ke goes to the genera of that order or section, 

 and reads their descriptions, until he finds the genus to 

 which it belongs. 



5. At last he looks over the species of that genus, until 

 lie finds the exact description of his plant. 



*Linneus divided them into 24 classes But farther discoveries^, 

 since his death, have proved the classes Polyadelphia and Polyg-amia to 

 be too uncertain and variable lo be any longer retained. Persooa. 

 therefore, and o;her eminent botanists have rejected them. 



