You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If you need an accessible version of this item please contact JSTOR User Support
The Mesquites and Screw-Beans of the United States
American Journal of Botany
Vol. 28, No. 9 (Nov., 1941), pp. 748-754
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2436660
Page Count: 7