SYSTEMATIC BOTANY OF NORTH AMERICA. 



UNDER THE EDITORSHIP OF 



N. L. Britton, John M. Coulter, F. V. Coville, 



Columbia College, Lake Forest University, U. S. Dept. of Agriculture, 



New York City. Lake Forest, 111. Washington, D. C. 



Edward L. Greene, Byron D. Halsted, Arthur Hollick, 



University of California, Rutger's College, Columbia College, 



Berkeley, Calif. New Brunswick, N. J. New York City. 



Lucien M. Underwood, 



De Pauw Universitj', Greencastle, Ind. 



Columbia College, New York, November — , 1893. 

 My Dear Sir: — 



It is proposed to publish a comprehensive, descriptive Flora of the 

 United States and British America in the general sequence of the larger 

 groups adopted in "Die Naturliche Pflanzenfamilien " of Eugler and 

 Prantl, thus including all the known plants of this area. In order to 

 accomplish this, the widest co-operation of American Botanists is desired, 

 and I am authorized by the Board of Editors to invite your interest and 

 assistance. 



The work will be issued in parts averaging about 100 pages each in royal 

 octavo or small quarto size. About 5 of these parts will constitute a volume, 

 and it is estimated that about 75 parts, making 15 volumes, will be required. 

 No illustration is contemplated, but copious references to published plates 

 and figures will be made a feattire. In addition to the technical characteri- 

 zations, chapters dealing with the economic, palaeontologic and horticul- 

 tural aspects of each order will be appended. Especial attention will be 

 given to the verification of original descriptions, to the examination of 

 type specimens, to the citation of type localities, and to geographical 

 distribution. 



No attempt will be made to treat the groups consecutively, but the 

 sequence of orders being tentatively established in advance, and the num- 

 ber of genera and species being approximately known, it is possible to 

 print parts of all the volumes, or of as many of them as is desired at about 

 the same time. It is hoped that five or six parts can be issued annually, 

 beginning in 1896. Several parts are already in preparation. 



The following botanists have consented to co-operate with the editors 

 in preparing monographs of various groups, or in superintending their 

 preparation: 



Prof. Thos. C. Porter, Lafayette College, Easton, Penn.; Prof. Chas. E. 

 Bessey, University of Nebraska, Lincoln, Neb.; Prof. Chas. R. Barnes, 

 University of Wisconsin, Madison, Wis.; Prof. Wm. Trelease, Missouri 

 Botanic Garden, St. Louis, Mo.; Prof Conway Mac Millan. University of 

 Minnesota, Minneapolis, Minn; Prof. J. A. Arthur, Purdue University, 

 Lafayette, Ind.; Dr. Thomas Morong, Columbia College, New York City; 



February 26, 1S94. 



