PREFACE. 



publish the list at this time, in order that it may be used 

 as a basis on which to build an exhaustive edition. 



To enable me to compile the present list, the collections 

 of the past two years, forming the nucleus of a Reserva- 

 tions Herbarium, have been placed in my hands, together 

 with a large card catalogue of valuable notes by botanists 

 who have studied the flora about Boston for years. Mr. 

 M. L. Fernald kindly took charge of naming the Com- 

 posites, and Dr. C. W. Swan the Junci, Cyperaceae and 

 Gramineae. Dr. Swan has been much aided by Prof. 

 F. Lamson-Scribner in the grasses, and Prof. L. H. 

 Bailey in the genus Carex. I hold myself responsible for 

 the rest of the Phanerogams, as I have examined them all 

 with the exception of a few which were submitted to Dr. 

 B. L. Kobinson and Mr. M. L. Fernald. In the naming 

 of these plants I have been assisted especially by the 

 co-operation of Dr. G. G. Kennedy, Judge J. E. Church- 

 ill, Mr. L. L. Dame and Mr. E. F. Williams. Mr. 

 George E. Davenport has taken charge of the Pterido- 

 phyta, Mr. E. L. Rand of the Bryophyta, Mr. J. W. 

 Blankinship of the Characeas, Mr. F. S. Collins of the 

 Algse, Miss Clara E. Cummings of the Lichens, and Prof. 

 A. B. Seymour and Mrs. Flora W. Patterson of the 

 Fun<n. The list of Thallophytes is a small one, as but 

 little work has as yet been done in this direction. Mr. 

 E. L. Rand and Dr. B. L. Robinson have rendered most 

 efficient assistance in regard to the form of the list, and 

 Miss Mary A. Day, Librarian at the Gray Herbarium, 

 has been most courteous in facilitating the work done in 

 the Library. Mr. Warren H. Manning's large collections 

 of plants, and his notes on the trees and shrubs have 

 been of great service ; and the general field notes of Mr. 

 W. P. Rich, added to his extensive contributions to the 



