PREFACE. Vll 



Joel Jackson Carter was a native and a resident of Lancaster County. 

 His interest in its flora extended over a period of more than fifty years, as 

 did his father's, wliich began about the beginning of the last century. Mr. 

 Carter died May 4, 1012, shortly after the first galleys of this flora were 

 received from the printer. However, a duplicate copy of the manuscript 

 of the descriptive i^art of the work had been in his hands for sevei'al years. 



The Avriter's interest in the plants of Lancaster County began in 1888. 

 During a residence at Lancaster, from 1888 to 1892, while attending Frank- 

 lin and Marshall College, nearly all parts of the county were visited and 

 the plants collected; this exploration has since been supplemented by fre- 

 quent visits to various paints of the county. 



J. K. Small. 



The New York Botanical G^vrden, 

 September 3, 1913. 



