100 



cr. Euryptera bears the same relation to Peucedanum that 

 the latter half of Aulospermum bears to Cymoptenis proper. 

 Lomatium the new creation for Peucedanum proper they have 

 not split pari passu, yet they should have done so as to be con- 

 sistent, and should 'split it' up as follows; one genus for the 

 species -from the beginning to'Watsoni. one genus from there 

 to tomentosuin, one or two more from there to Sonnei except 

 alatum. another of alatum and anomalum. They failed to 

 throw bicolor into Leibergia which is congenerie witli Peuce- 

 danum through P. ambigtuim. 



Ocuta is another genus in which they have followed 

 t^reene too far. Hydrocotyle and Osmorhiza are other genera 

 too floridly treated. 



The writer has tried to point out the defects in this other- 

 wise admirable paper of Coulter and Rose. Talcing it as a 

 whole this is the best thing that has ever been published on 

 North American Umbelliferae, and makes it possible for any 

 botanist to identify his plants easily except where the keys are 

 at fault which is not frequent. The citation of specimens is 

 convenient for those from whose herbaria they have come, es- 

 peciaUy where the collector was uncertain of the species. 



