100 COMPOSITE, [part I. 



named and described ; and to assist the memory 

 in retaining the names of this great number of 

 plants, various means have been devised for 

 dividing the order into sections and tribes. 

 The principal botanists who have proposed 

 means of arranging this order, are Cassini, 

 Lessing, and lastly the late Professor De Can- 

 doUe, in three voluines of his Prodromus pub- 

 lished in 1840. But as the distinctions between 

 the divisions proposed, lie in the difference 

 found in the stigmas and pappus of the different 

 genera, I have judged them too troublesome for 

 my readers, as I am sure they are for myself, 

 and I have preferred following the plan adopted 

 by Dr. Lindley in his Elements of Botany^ pub- 

 lished in 1841, and dividing the Compositse into 

 four tribes ; viz., the three originally proposed 

 by Jussieu, and a fourth added by Professor 

 De CandoUe, containing the plants with bila- 

 biate florets, which were either not known, or 

 overlooked, by Jussieu. It may perhaps be 

 necessary to add, that this arrangement forms 

 the basis of the new one proposed by De Can- 

 doUe, and that the principal difference consists 

 in the subdivisions. 



