589.773 
»USS 
/ 0th Se ¢ 
Bol. 
PREFATORY NOTE. 
. . . . ~ ~ 
In the act of Congress making appropriation for the Department of 
Agriculture for the fiscal year ending June 30, 1889, provision was—__ 
made for botanical exploration and the collecting of plants in little- 
known districts of America, in connection with the United States 
National Herbarium; and since that time a similar provision bas been 
made annually. Asa partial result of these appropriations, the Divi- 
sion of Botany has issued heretofore three completed volumes, I, II, and 
IV, of a series of publications entitled Contributions from the United 
States National Herbarium. The present volume consists chiefly of 
reports on the collections made by agents of the Department of Agri- 
culture under the acts mentioned. 
FREDERICK V. COVILLE, 
Botanist, U.S. Department of Agriculture, 
Curator, U. S. National Herbarium. 
Ill 
