North American Flora 
HIS work is designed to present descriptions of all plants growing 
T 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. 
ume 1. Mycetozoa, Schizophyta, Diatomaceae. 
Volumes 2 to ro. ‘ 
olumes 11 to 13. Algae. 
Volumes 14 and 15, Br ophyta. 
Volume 16. Pteridophyta and Gymnospermae. 
S 
_“ach author will be wholly responsible for his own contriban 
being restricted only to the general style adopted for the work, whic 
must vary somewhat in the treatment of diverse groups. ee cosine 
The subscription price is fixed at $1.50 for each part; it is expecte : 
that four or five parts will be required for each volume. A limited num 
ber of separate parts will be sold at $2.00 each. Address, 
THE NEW York BOTANICAL GARDEN 
BRONX PARK, New York CITY 
Volume 7, Part r, 
Ustilaginales, including Ustilaginaceae and Tilleti- 
aceae, by G. P.C 
linton, was issued Oct. 4, 1906. : ) 
ol. 7, Part 2, Coleosporiaceae, Uredinaceae and Aecidiaceae (pats)s 
of the Uredinales, by J. C, Arthur, was issued March 6, 1907. Nash 
Volu , including Podostemonaceae by George V- pes 
- L. Britton and J. N. Rose, and Penthoraceae 4 
- Rydberg, was issued May 22, 1905. by J: 
ume 22, Part 2, including Saxifragaceae and Hydrangeaceae ae 
K. Small and P. A. Rydberg, Cunoniaceae, Iteaceae and Hamamelidactt 
by N. L. Britton, Pterostemonaceae by J. K. Small, Altingiaceae by Pe : 
Wilson and Phyllonomaceae by H. H. Rusby, was issued Dec. 18, 199?" 
