North American Flora 
HIS work is designed to present descriptions 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. 
It 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 Charles P. Daly. 
with the following sequence: 
Volume 1. Mycetozoa, Schizophyta, Diatomaceae. 
Volumes 2 to 10. ngi. 
Volumes 14 and 15. phyta. 
Volume 16. Pteridophyta and Gymnospermae. 
Volumes 17 to 19. Monocotyledones. 
Volumes 20 to 30. Dicotyledones. j 
The preparation of the work has been referred by the Scientific Direc- 
tors of the Garden to a committee consisting of Professors L. M. Under- 
wood and N. L. Britton. 
Coville of the United States Department of Agriculture, Pro- 
fessor Edward L. Greene of the United States National Museum, 
¥ 
ory committee. ae 
_Each author will be wholly responsible for his own contributions, 
i t 1C. 
THE NEw York BOTANICAL GARDEN 
BRONX PARK, New York CITY 
Volume 7, Part 1, Ustilaginales, including Ustilaginaceae and Tilley 
aceae, by G, P. Clinton, was issued Oct. , 1906. 
ol, 7, Part 2, Coleosporiaceae, Uredinaceae and Aecidiaceae (pars), 
of the Uredinales, by J. C. Arthur, was issued March 6, 1907. h 
Volume 22, Part ;; including Podostemonaceae by George V. Nas d 
Crassulaceae by N. L. Britton and J. N. Rose, and Penthoraceae 40 
by N. L. Britton, Pterostemonaceae by J. K. Small, Altingiaceae by Percy 
Wilson and Phyllonomaceae by H. H. Rusby, was issued Dec. 18; 1995* 
