TO BOTANT. lOf 



CHAP. XXXI. 



OF THE GENERA, REJECTED BY THE SEXUAL 



SYSTEM, AS NOT ESTABLISHED ON THE 



FRUCTIFICATION. 



WE have observed in Chap, 29- that the earlier 

 Botanists had admitted many genera, on distinctions 

 that were not grounded on the parts of fructification, 

 but on the habit of plants, and on other circum- 

 stances which are now considered as specific distinc- 

 tions only : of these we shall here give an ample list. 

 The reader will Jiere -take notice, that under the first 

 column are ranged the genera that are abolished ; 

 and over against them in the second, the genus to 

 which they are severally to be referred *, with the 

 specific difference that had given occasion to the 

 false distinction. 



OLD GENERA. NEW GENERA. 



Limodorum Orchis with a fibrous root. 



Bistorta Polygonum, with a fleshy roof, 



Rapa Brassica, with a gibbose root. 



Sisarum Sium, with a tuberose root. 



Hermodactylus Iris, with a tuberose root. 



. . ,. CIris, with a double bulb, one over the 

 Sisynnchium 



* The names and the generic arrangement ef vegetables 

 having undergone many alterations during the progress of the 

 improvements made in the science, the new genera to which 

 these false ones are referred in this and the following lists, do 

 not all stand under the titles given to them in the latter edi- 

 tions of the works of Linnaeus : where this happens, we shall 

 expjain it by a note, choosing that method rather than to al- 

 ter the lists' themselves, which we have taken from the Philo- 

 lophia Botanica. 



