LAWS OF NOMENCLATURE. 19 



to an order {ordo, famiMa), every order to a coliort 

 (cohors), every coliort to a class (classis), every class to 

 a division (divisio). 



Art. 9. In many species we distinguish, likewise 

 varieties and variations, and in some cultivated species, 

 modifications still more numerous ; ia many genera 

 sections, in many orders tribes. 



Art. 10. Finally, if circumstances require us to 

 distinguish a greater number of intermediate groups, 

 it is easy, by putting the syllable sub before the 

 name of the group, to form subdivisions of that group ; 

 in this manner suborder (subordo) designates a group 

 between an order and a tribe, subtribe (subtribus), 

 a group between a tribe and a genus, etc. The ensem- 

 ble of subordinate groups may thus be carried, for un- 

 cultivated or spontaneous plants only, to twenty de- 

 grees, in the following order : — 



Eegnum vegetabile. 

 Divisio. 



Subdivisio. 

 \ Classis. 

 Subclassis. 

 Cohors. 



Subcohors. 

 ■^ Ordo. 

 Subordo. 

 ^ Tribus. 

 Subtribus. 

 \ Genus. 

 Subgenus. 

 Sectio. 



Subsectio. 

 V Species. 



B 2 



