258 



ebenoides from Jefferson. While all these need further verification, there 

 is no reason apparent why they should be thus limited, though the last 

 named species is always a rare and local find. 



In preparing this paper the following herbaria have been examined : 

 Purdue University, containing 22 Indiana species, many collected by Dr. 

 C. R. Barnes, in Jefferson county ; the herbarium of G. C. Hubbard, with 

 24 species, collected mostly in Southern Indiana ; that of Wabash College, 

 with 25 species, largely collected by Dr. J. M. Coulter ; that of DePauw 

 University, with 29 species, collected by D. T. McDougal in Putnam and 

 by W. S. Blatchley in Monroe and Vigo ; and that of the writer with 35 

 Indiana species collected in various parts of the state, mostly during the 

 present season. 



Valuable notes have also been sent by Rev. E. J. Hill, Dr. J. Schneck, 

 W. P. Shannon, W. S. Blatchley and Professor A. H, Young. It 4s hoped 

 that the work of a second season will give more defiiaite and fairly com- 

 plete information regarding the distribution of critical species. 



The adventitiou>s p lants of Fayette county, Ind. By Robert Hessler. 



During the period from 1881 to 1890 the writer kept a close Watch upon 

 t he flowering plants of Fayette county, noticing particularly the arrival 

 of plants commonly regarded as weeds. During those ten years there 

 were at least thirty- five new arrivals ; of these twenty appeared along the 

 railroads, ten along roadsides and waste places, four in meadows, one in a 

 cultivated field. Of the thirty-five, seven again disappeared after a year or 

 two, eighteen merely held their own or spread only to a limited extent, 

 while teai have swept across the county and may now (t. e., 1890) be found 

 almost everywhere. 



A brief note on the mnin features of the county may aid in better under- 

 standing t he changes in the flora. Fayette county is almost due east of 

 . the capitral and ie the second county from the Ohio state line. The county 

 was for merly densely wooded. The surface, excepting the level northwest 

 portion, is rolling and in places even hilly, especially along the southern 

 boundary. The whole surface is covered by drift. The county is divided 

 from jiorth to south by a broad valley through which the White Water 



