If you need an accessible version of this item please contact JSTOR User Support
Evidence on Rates of Evolution from the Distribution of Existing and Fossil Plant Species
G. Ledyard Stebbins, Jr.
Vol. 17, No. 2 (Apr., 1947), pp. 149-158
Published by: Ecological Society of America
Stable URL: http://www.jstor.org/stable/1943261
Page Count: 10
You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution: