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Back Matter Source: Contributions from the United States National Herbarium, Vol. 21 (1919) Published by: Department of Botany, Smithsonian Institution Stable URL: http://www.jstor.org/stable/23492340 . Accessed: 22/05/2014 18:26 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . Department of Botany, Smithsonian Institution is collaborating with JSTOR to digitize, preserve and extend access to Contributions from the United States National Herbarium. http://www.jstor.org This content downloaded from 193.104.110.60 on Thu, 22 May 2014 18:26:47 PM All use subject to JSTOR Terms and Conditions
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