a complete reference guide Block, Timothy A. creator Rhoads, Ann Fowler. Ani�sko, Anna. University of Pennsylvania Morris Arboretum. ebrary, Inc text bibliography Electronic books. pau Philadelphia University of Pennsylvania Press c2011 2011 monographic eng

electronic

electronic resource

vi, 308 p. : ill. (some col.), col. maps. Evolution and ecology -- Identification keys -- Emergent plants -- Floating-leaf plants -- Thalloid and/or tiny floating plants -- Submergent leafy-stemmed plants -- Submergent rosette forming plants -- Submergent plants with finely divided leaves. Timothy A. Block and Ann Fowler Rhoads ; illustrations by Anna Ani�sko. "Morris Arboretum of the University of Pennsylvania." Includes bibliographical references and index. Electronic reproduction. Palo Alto, Calif. : ebrary, 2013. Available via World Wide Web. Access may be limited to ebrary affiliated libraries. n-us-pa Aquatic plants Pennsylvania Identification QK183 .B56 2011eb 581.7/609748 http://site.ebrary.com/lib/rucke/Doc?id=10642709 http://site.ebrary.com/lib/rucke/Doc?id=10642709 CaPaEBR 100602 ebr10642709