11 



verifying specimens; no reference is made to these except that when a 

 species is reported which does not occur in Indiana, it is discussed and 

 placed in the excluded list where it belongs. 



Those plants whose mass distribution is to the south or southwest of 

 Indiana and always found in cultivated grounds, are probably introduced. 

 These are discussed in the text. 



The date of flowering of a species is given in the vertical column at 

 the left of the map. No effort has been made to collect plants at their very 

 earliest or latest flowering dates, and dates and the number of specimens 

 have been taken from my collection only. 



The distribution on the map is by counties and is indicated by letters 

 which are symbols for the herbaria in which specimens are deposited. I 

 have seen all the Indiana specimens in both public and private herbaria 

 in Indiana and many specimens cited outside of Indiana. Those which I 

 have not seen are ones cited by recent authors. Hermann has seen all of 

 the Carex and Juncaceae cited. 



It was impracticable to go through all the herbaria of the United 

 States. The principal collectors of Indiana plants are known and I have 

 seen their plants except those of E. J. Hill which are deposited in the 

 herbarium of the University of Illinois, Urbana, Illinois ; those of H. 

 Walton Clark and B. W. Evermann from Marshall County which are 

 deposited in the Field Museum, Chicago, Illinois, and the National 

 Herbarium, Washington, D. C. ; and those collected by L. M. Umbach 

 which are in the herbarium of the University of Wisconsin, Madison, 

 Wisconsin. Since Hill and Umbach did most of their collecting in the 

 counties along Lake Michigan whose flora is well represented later by 

 my own work, and by that of Marcus Lyon, Jr., J. A. Nieuwland, and 

 others it is doubtful if these former authors found anything not later 

 collected and reported. They reported all the rare things they collected 

 and I have examined all of these rarities. 



When the area of the county is too small to hold all the reports, those 

 of private herbaria have been omitted. 



The herbaria indicated by symbols and their location are as follows: 



A A Arnold Arboretum, Jamaica Plain, Massachusetts. 



B Butler University, Indianapolis, Indiana. 



Ba Private herbarium of Edna Banta, Bloomington, Indiana. 



C University of California, Berkeley, California. 



Cm Carnegie Museum, Pittsburgh, Pennsylvania. 



Cu Cornell University, Ithaca, New York. 



D Deam Herbarium, Bluffton, Indiana. (Later to be located at Indiana University, 



Bloomington, Indiana.) 



Dk South Dakota Agricultural College, Brookings, South Dakota. 



DP DePauw University, Greencastle, Indiana. 



F Field Museum of Natural History, Chicago, Illinois. 



Fr Franklin College, Franklin, Indiana. 



G Cray Herbarium, Cambridge, Massachusetts. 



H Private herbarium of Frederick J. Hermann, Ann Arbor, Michigan. 



Hi Private herbarium of Lawrence E. Hicks, Columbus, Ohio. 



I Umiversity of Illinois, Urbana, Illinois. 



IU Indiana University, Bloomington, Indiana. 



K Private herbarium of Ralph M. Kriebel, Bedford, Indiana. 



