GEOGRAPHICAL DI8TRIBUTIOH Of ILLINOIS PLANTS. 



No. plants found only in the Northern thir 1 of the State 156 



n Northern plants extending into or through centre of State 57 — Northern plants : 213 

 " confined to Southern third of State 156 



" Southern plants extending into or through centre of State 12S — Southern plants : 284 



" confined to Western portion of the State 20 



" " " central u 11 



plants (mostly maritime) found only near Lake Michigan.. 14 Of limited range : 542 



plants ranging throughout the State 787 



" whose range is not yet satisfactorily determined 97 



I shall be happy to receive, from persons who have collected, or may in future collect in 

 Illinois, information concerning: 



I. Any native or thoroughly naturalized plant not given in this Catalogue, with a 

 specimen of the plant : 



II. Extension of the range of plants marked N., C, S., &c. — if only to a single county ; 



III. Notes on any peculiarities of our plants, new hybrids, etc.. not mentioned in our 

 Botanies. — These additions and corrections will be issued in a supplement, at the end of each 

 collecting season. 



Oqi-awka. Ills., March 1, 1876. HARRY N. PATTERSON. 



