PREFACE. 



IN 1883 I prepared for publication the first Catalogue of the 

 Plants of Worcester County, Massachusetts, containing eight 

 hundred and twelve species and well-marked varieties. 



In 1894 the second edition, enlarged to ten hundred and 

 ninety-eight species, was issued. In the meantime, by the 

 kind and generous help of many friends, all of whom will 

 understand, I hope, that whether their names appear in these 

 pages or not, my sense of obligation to them is here fully 

 acknowledged and gratefully remembered, more than a hun- 

 dred additions have been made. 



The airangement and the nomenclature are those of Gray's 

 New Manual of Botany, Seventh Edition, 1908, the book 

 most likely to be used by all persons interested in the study 

 of the local flora here given. 



In the hope that they may add some interest to certain 

 plants in the catalogue, I have inserted references to a few 

 plants, made by writers of recognized standing in American 

 and English literature. I have not included writers like 

 Thoreau in this country and Jefferies in England, whose 

 writings abound in such references, on the ground that their 

 works are more or less well known to all persons interested in 

 wild flowers found in their respective countries. 



J.J- 



