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In the glades of Indiana, Illinois, Missouri and West 

 Kentucky. Dedicated to Z. Collins. 



I have never seen the 6?. pneumonanthe nor G, 



^ _ 



Vilhsa of Linnseus. I suspect that the true G. pneu- 

 monanthe of Europe, does not grow in America, all 

 our species being different from ihe European, and 

 that either G. gracilis or G. torreyana was meant by 

 Michaux. As for G, villosa it is a doubtful plant, 

 seen by very few botanists, all our Gentians have 

 smooth leaves, I suspect that it may be a hairy variety 

 of my G. heterophyllo. 



The above account may be considered as a concise 

 monogfaphy of our Gentians j but there are some 

 other species in the southern states. The perennial 

 kinds, which are the most numerous, have their medi- 

 cinal properties concentrated in the roots, which may 

 safely be substituted to the officinal Gentian. The 

 annual kinds have the whole plant intensely bitter and 

 available Us in Sabbatia, Chelone glabra, Verbena 

 haatata &c. They all ought to be cultivated for their 



beautiful blue blossoms, and officinal utility. 



