A Preliminary Revision of the North American Species of Cactus,
Anhalonium, and Lophophora by John M. Coulter.




U. S. Department of Agriculture
Division of Botany
CONTRIBUTIONS FROM THE U. S. NATIONAL HERBARIUM
Vol. III--No. 2
Issued June 10, 1894
Preliminary Revision of the North American Species of Cactus,
Anhalonium, and Lophophora.
by
John M. Coulter.
Published by Authority of the Secretary of Agriculture
Washington
Government Printing Office
1894
LETTER OF TRANSMITTAL
U. S. Department of Agriculture
Division of Botany
Washington, D. C., March 21, 1894
SIR: I have the honor to transmit herewith, for publication as
Vol. III, No. 2, of Contributions from the U. S. National
Herbarium, a Preliminary Revision of the North American species
of Cactus, Anhalonium, and Lophophora, by President John M.
Coulter.
Respectfully,
Frederick V. Coville,