Affiliation: | (1) Department of Biology, Virginia Commonwealth University, P.O. Box 842102, Richmond, Virginia 23284, U.S.A;(2) Department of Botany, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, Illinois 60605, U.S.A;(3) Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri, 63166-0299, U.S.A;(4) Département de Systématique et Evolution, Phanérogamie, Muséum National d Histoire Naturelle, 16 rue Buffon, 75005 Paris, France |