ANNOUNCEMENT 
The NortH AMERICAN FLorA is designed to present in one work de- 
scriptions of all plants growing, independent of cultivation, in North America, 
here taken to include Greenland, Central America, the Republic of Panama, 
and the West Indies, except Trinidad, Tobago, and Curacao and other islands 
off the north coast of Venezuela, whose flora is essentially South American. 
The work will be published in parts at irregular intervals, by the New 
York Botanical Garden, through the aid of the income of the David Lydig 
Fund bequeathed by Charies P. Daly. 
It is planned to issue parts as rapidly as they can be prepared, the ex- 
tent of the work making it possible to commence publication at any number of 
points. ‘The completed work will form a series of volumes with the following 
sequence : 
Volume 1. Mycetozoa, Schizophyta, Diatomaceae. 
Volumes 2 to 10. Fungi. 
Volumes 11 to 13. Algae. 
Volumes 14 and 15. Bryophyta. 
Volume 16. Pteridophyta and Gymnospermae. 
Volumes 17 to 19. Monocotyledones. 
Volumes 20 to 32. Dicotyledones. 
The preparation of the work has been referred by the Scientific Direc- 
tors of the Garden to a committee consisting of Dr. N. L. Britton, Dr. W. A. 
Murrill, and Dr. J. H. Barnhart. 
Professor George F. Atkinson, of Cornell University ; Professor John M. 
Coulter, of the University of Chicago; Mr. Frederick V. Coville, of the United 
States Department of Agriculture; Professor Edward L. Greene, of the United 
States National Museum; Professor Byron D. Halsted, of Rutgers College ; 
and Professor William Trelease, of the Missouri Botanical Garden, have con- 
sented to act as an advisory committee. 
Each author will be wholly responsible for his own contributions, being 
restricted only by the general style adopted for the work, which must vary 
somewhat in the treatment of diverse groups. 
The subscription price is fixed at $1.50 for each part; it is expected 
that four or five parts will be required for each volume. A limited number of 
separate parts will be sold at $2.00 each. Address: 
THE NEW YORK BOTANICAL GARDEN 
BRONX PARK 
NEW YORK CITY 
