Document Type: Research Article
Affiliations: 1: Botanical Research Institute of Texas, 509 Pecan Street, Fort Worth, Texas 76102, U.S.A. 2: Botany, MRC-166, United States National Herbarium, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington D.C. 20013, U.S.A. 3: Hunt Institute for Botanical Documentation, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, U.S.A. 4: Royal Botanic Garden, Edinburgh, EH3 5LR, Scotland, U.K. 5: Brooklyn Botanic Garden, 1000 Washington Avenue, Brooklyn, New York 11225, U.S.A. 6: The New York Botanical Garden, Bronx, New York 10458 U.S.A. 7: Division of Environmental Biology, National Science Foundation, 4201 Wilson Boulevard, Arlington, Virginia 22230, U.S.A.
Publication date: February 1, 2004
Impact Factor (2012): 2.78
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