The North American Species of
The North American Species of Cactus, Anhalonium, and Lophophora
by John M. Coulter
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 ...