Research Associates
J. Richard Abbott, Ph.D., Botany, working with Ron Liesner on Polygalaceae; New York Botanical Garden. 

William S. Alverson, Botany Department, University of Wisconsin, Madison, WI; Malvatheca clade, Malvales. or

John W. Andresen, University of Illinois, Urbana, Illinois; urban forestry.

Elisabeth Andrews Hooper, Truman State University, Department of Biology, Kirksville, MO; Aleuritopteris

Sandra Arango, Lauraceae.

James Aronson, Centre d’Ecologie Fonctionelle et Evolutive, Montpellier, France; restoration and rehabilitation ecology of arid and semi-arid lands.

Franklin Ayala, Honorary Curator, Herbario Etnobotánico Amazónico, Iquitos, Peru.

Harvey E. Ballard, Jr., Ohio University, Athens, Ohio; Violaceae.

Janet C. Barber, Assistant Professor, Saint Louis University; Ludwigia.

Lisa Barnett, Smithsonian Tropical Research Institute, Washington, DC; Sterculiaceae and related Malvales.

Isabel Basualdo, Universidad Nacional del Paraguay, Asunción, Paraguay; Rosaceae, medicinal plants, flora of Paraguay.

David Baum, University of Wisconsin, Wisconsin; floral evolution and development, Bombacaceae.

Dorothea Bedigian, St. Louis, Missouri. Biogeography and evolution in Sesamum (Pedaliaceae) and related genera. Ethnobotany, Africa and Asia.

Peter Bernhardt, (See Associated University Faculty)

Paul E. Berry, University of Wisconsin, Madison, Wisconsin; Flora of the Venezuelan Guayana, Fuchsia (Onagraceae), Croton (Euphorbiaceae).

David Bogler, Liliaceae, Flora of Missouri. (See Staff Page)

Robert Bolla, Professor, Department of Biology, Saint Louis University; plant-nematode molecular interactions.

Frank D. Bowers, Mountain Home, Arkansas; bryophytes.

Lois Brako, University of Wisconsin-Madison, Wisconsin; research services, tropical lichens.

Alan Brant, Botanist with special interest in wetlands, species of conservation concern, plant systematics, ecology.

Andrew P. Braun, Botanist, Springfield, MO, with special interest in Dichanthelium.

Steven W. Brewer, Plant Ecologist/Field Botanist; conduct rare threatened endangered sensitive invasive species surveys throughout the Southeastern and Midwestern U.S.; conduct vegetation surveys including plant community classification and description, plot inventories, and habitat assessments. or

Jeremy J. Bruhl, University of New England, Armidale, Australia; Phyllantheae (Euphorbiaceae), Cyperaceae.

Sven Buerki, Dr., Department of Life Sciences, Natural History Museum, London, United Kingdom; Sapindaceae & Pandanaceae.

Robyn J. Burnham, University of Michigan, Michigan; Paleobotany, tropical lianas.

Fernando Cabieses Molina, Universidad Cientifíca del Sur, Peru; Andean Traditional Medicine.

Ricardo Callejas, Universidad de Antioquia, Medellín, Colombia; Piperaceae.

Martin W. Callmander, Dr., Conservatoire et Jardin botaniques de la Ville de Genève, Switzerland; Sapindaceae, Pandanaceae, New Caledonian and Malagasy Flora.

Paulo Eduardo A. S. Camara, Bryophytes.

Jia-rui Chen, Honorary Curator, Chinese National Herbarium, Beijing, China; Cycadaceae.

Elena Claudia Ciotir, Ph.D.,  Environmental Life and Sciences, Saint Louis University; global inventory and systematic evaluation of perennial grain, legume, and oilseed species

Alison Eleanor Louise Colwell,  Ph.D., evolution, ecology and population biology; presently at Yosemite National Park, Branch of Vegetation and Ecological Restoration, Division of Resources, Management and Science; collaborates with FNA works on systematic research. 

Raymond Cooper, PhytoScience LLC & Adjunct Professor at Hong Kong Polytechnic University - Hong Kong; medicinal plants and ginkgo.

David G. Corley, Nestle.

Mireya Correa, Honorary Curator, Herbario PMA, Panama City, Panama; Neotropical Droseraceae.

Barbara Crandall-Stotler, Southern Illinois University-Carbondale, Illinois; bryophytes (liverworts and anthocerotes).

Jorge V. Crisci, Honorary Curator, Herbario LP, La Plata, Argentina; Asteraceae, Onagraceae, biogeography.  or

Gabriel D’Argent, Mauritius Wildlife Foundation; plant conservation.

Gregorio Dauphin Lόpez, Ph.D., Bryologist,  Herbario Nacional, Museo Nacional de Costa Rica, San José, Costa Rica.

Christopher Davidson, Dr., collaborates with various people in the Garden; currently working on DNA and voucher specimens of Piper and Peperomia for gene sequencing.

Petra DeBlock, National Botanic Garden of Belgium, Meise, Belgium; African and Madagascar Pavetteae (Rubiaceae).

Philip J. DeVries, University of Oregon-Eugene, Oregon; caterpillar-ant-plant symbioses, host plant relationships of tropical butterflies.

Tim Dickson, Ph.D., plant ecology, restoration, and climate change.

Michael O. Dillon, Field Museum of Natural History, Chicago, Illinois; neotropical Asteraceae.

Kingsley Dixon, Dr., Botanic Gardens & Park Authority Kings Park; works in Australian Ecological restoration, conservation biology and plant conservations and Ecosystems. His research led to the discovery of the active agent in smoke germination – a butenolide molecule (karrikinolide)

Calaway H. Dodson, Honorary Curator, Orchidaceae. Sarasota, Florida.

Robert Dressler, Flora Mesoamericana, Orchidaceae.

Vincent Droissart, Institut de Recherche pour le Developpement (IRD), Montpellier France; Biologist/Tropical botanist.

Patricia Eckel, Botanical Latin, Bryology. (See Staff Page)

W. Hardy Eshbaugh, Miami University, Oxford, Ohio; Capsicum (Solanaceae).

Matt E. Estep, University of Missouri - St. Louis, Dept of Biology; grass evolution.

Don Faber-Langendoen, The Nature Conservancy, Minneapolis-St. Paul, Minnesota.

Robert Faden, Smithsonian Institution, Washington, D.C.; Commelinaceae, flora of tropical Africa.

Reinaldo Farias Paiva de Lucena, Ph.D., Universidade Federal da Paraíba; ethnobotanical work in Latin America; collaborating with Rainer Bussmann - William L. Brown Center.

Priscilla Fawcett, Waterloo, Illinois; Cycadaceae.

Trish Flaster, Botanical Liaisons, Boulder, Colorado; natural products consultant.

Donna I. Ford-Werntz, West Virginia University, Morgantown, West Virginia; Calandrinia, Montiopsis (Portulacaceae), flora of West Virginia.

Robin B. Foster, Field Museum of Natural History, Chicago, Illinois; tropical ecology and floristics.

James S. Fralish, Southern Illinois University-Carbondale, Illinois; forestry.

Alina Freire-Fierro, Universidad Regional Amazónica IKIAM, Tena, Napo, Ecuador. Polygalaceae Systematics and Medicinal Importance, Neotropical Botany.

Sara Fuentes Soriano, Indiana University; works on Brassicaceae.

L. L. Gaddy, Clemson University, Clemson, South Carolina; vascular flora of the headwaters of the Savannah River.

Chrissen Gemmill, collaboration on plant systematics in New Caledonia and Madagascar. As of Dec 1997 - hold the position as Senior Lecturer in Biological Sciences, University of Waikato, Hamilton New Zealand.

Hong ya Gu, Peking University, Beijing, China; isolation of agriculturally important genes in rice, molecular evolution of certain plant groups.

Bee Gunn, Missouri Botanical Garden, Research; phylogeny of the Cocoaeae (Arecaceae) with emphasis on Cocos nucifera L.

Clement Wilson Hamilton, Ph.D., Botanical, Ecological, and Horticultural Research; systematics of Neotropical Psychotria (Rubiaceae); climate change and geographic ranges of eastern North American trees and potential assisted migration.

Julian Harber, Foster Clough House in the United Kingdom; independent investigator who collaborates on the Flora of China; works on Berberis.

David Harris, Royal Botanic Garden Edinburgh, Edinburgh, U.K.; African plants, Irvingiaceae.

Thomas E. Hawkins, Wallingford, Pennsylvania; Mesoamerican flora, forestry.

Kristine A. Hildebrandt, Associate Professor – Southern Illinois University in Edwardsville; collaborates with Robbie Hart and Jan Salick on Himalayan bio-cultural diversity projects.

Matt Hill, Restoration Ecology - restoration of tropical rainforest.  Check Green Again - Madagascar website.

Steven R. Hill, Illinois Natural History Survey, Champaign, Illinois; Malvaceae.

Bruce Holst, Marie Selby Botanical Gardens, Sarasota, Florida; Flora of the Venezuelan Guayana, neotropical Myrtaceae, Bromeliaceae (Pitcairnioideae).

Cynthia Hong-Wa, Delaware State University.

Hugh H. Iltis, University of Wisconsin, Madison; Capparaceae, flora of Wisconsin.

Robert Ireland, Annandale, Virginia; bryophytes.

Dale E. Johnson, Dr., Systematics of Eriophyllinae ((Compositae).

Mary T. Kalin, Universidad de Chile, Santiago, Chile; breeding systems, community pollination ecology, plant biogeography in high altitude communities, temperate forests, and Mediterranean vegetation in Chile.

Valerie Kapos, University of Cambridge, Cambridge, U.K., and University of Washington, Seattle; Amazonian forest ecology.

Richard Keating, the anatomy of character state adaptations in flowering plants. (See Staff Page)  or

Robin C. Kennedy, University of Missouri, Columbia, Missouri; Epilobium (Onagraceae); research focus to "Flora of Missouri".

Sarah K. Khan, Director to Tasting Cultures; Ethnobotany, develops programs and activities in relation to food use.

David G. I. Kingston, Virginia Polytechnic Institute and State University, Blacksburg, Virginia; natural products chemistry.

Kaoru Kitajima, University of Florida, Gainesville, Florida; seedling ecology.

Robert Michael Kooyman, Dr., Restoration Ecologist; Comparative Ecology Lab, Dept of Biological Sciences, Macquarie University; Australian Rainforest Ecology on the Basis of Species Traits. and

Kim Kleinman, Webster University, St. Louis, Missouri; history of science.

Tiffany Knight, Washington University, St. Louis; Plant Population Biology.

Kyras Krakos, Ph.D., ecology and evolution, Washington University; studies Oenothera and did some collaboration with Peter Hoch.  or

Alyse Kuhlman, Dept. of Anthropology, Washington University.

Job Kuijt, University of Victoria, British Columbia, Canada; Loranthaceae and Viscasceae.

Douglas M. Ladd, The Nature Conservancy (Missouri Field Office), St. Louis, Missouri; natural area assessment and management, lichen floristics.

W. Joseph Leverich, (See Associated University Faculty)

Geoffrey A. Levin, Illinois Natural History Survey, Champaign, Illinois; Euphorbiaceae.

Ruth Lewis, Biology and Math Librarian, Washington University.

Walter H. Lewis, Senior Botanist, medical ethnobotany of Amazonian Peru and Ecuador. (See Staff Page)

Milton Lieberman, University of North Dakota, Grand Forks, North Dakota; forest dynamics and restoration in Costa Rica and other tropical countries.

David H. Lorence, National Tropical Botanical Garden, Lawai, Hawaii; Mexican and Mesoamerican Rubiaceae, Monimiaceae of Madagascar, and plants of Hawaiian Islands and Polynesia.

Jonathan B. Losos, Department of Biology, Washington University.

Timothy K. Lowrey, University of New Mexico, Albuquerque, New Mexico; Asteraceae, Nepenthaceae.

W. R. Quentin Luke, National Museums of Kenya, Nairobi; East African floristics and plant conservation assessments.

Richard Mansell, University of South Florida, Tampa, Florida; phytochemistry, Araceae.

Robert Marquis, (See Associated University Faculty)

Richard Mayden, (See Associated University Faculty)

Christine A. McAllister, Dr., Principia College, Department of Biology and Natural Resources; evolutionary history of the Andropogoneae Andropogon gerardii.

Will C. McClatchey, Department of Botany, University of Hawaii at Mañoa; Evolutionary Biology, Ethnobotany, Pharmacy, Anthropology.

Retha M. Meier, Associate Professor, Saint Louis University, St. Louis, MO; Research interests include Xerolphyllum tenax, the genus Cypripedium, Physaira filiformis, and Asclepias meadii.

Brien Meilleur, ethnobiology and ethnoecology, plant conservation and botanic gardens.

Karen Meyer Walker, M.S. in Biological Sciences. Karen will be working on the Wm. L. Brown Center's American Indian Ethnobotany Project with the members of the Sioux Tribe at the Crow Creek Reservation in South Dakota.

Betty Millan,  Museo de Historia Natural, Universidad Nacional Mayor de San Marcos; Anatomía y sistemática de Monocotiledóneas (ethnobotany). or

Allison Miller, work interest: origin, evolution, and conservation of domesticated Neotropical fruit trees.

Leslie Miller, Garden Ambassador; Science and Conservation.

Nicole E. Miller-Struttmann, Ph.D., Adjunct Professor of Biology at Maryville University, St. Louis, MO; evolution, ecology and population biology.

Robert H. Mohlenbrock, Southern Illinois University-Carbondale, Illinois; flora of Illinois and other midwestern areas, tropical legumes, and wetland flora.

Francisco Morales Quiros Ph.D., Bayreuth Universitat, Bayreuth, Bavaria, Germany; Molecular Biology and Plants Systematics.

Tania Maria de Moura, Dr.,  collaborates with Nelson Zamora and Roy Gereau – Universidade Estadual do Centro-Oeste, PR, Brazil – genus Mucuna.

Stephen Mulkey, University of Florida, Gainesville, Florida; ecological physiology of canopy plants in tropical forests.P

Jesús Muñoz, Real Jardín Botánico, Madrid, Spain; bryophytes.

Jérôme Munzinger, Laboratoire de Phanérogamie, Muséum National d'Histoire Naturelle, Paris, France; New Caledonian flora, Violaceae.

Nalini Nadkarni, Evergreen State College, Olympia, Washington; epiphyte community ecology.

Michael Nee, New York Botanical Garden; work and continue his research on the flora/checklist of Bolivia.

Beth Newton, Fontbonne University, St. Louis, MO; statistical ecological studies.

Daniel L. Nickrent, Ph.D., Department of Plant Biology, Southern Illinois University, Carbondale; Molecular phylogeny, biogeography and conservation, molecular phylogeny of Thesium.

Knut Norstog, Waterloo, Illinois; Cycadaceae.

Brad Oberle, recently completed his Ph.D. in "Ecology, Evolution and Population Biology" at Washington University; collaborating with Ivan Jimenez working in herbarium on hybridization between native and introduced Lespedeza.

Mark Olson, Universidad Nacional Autónoma de México, México; Moringaceae.

Narel Yaroslava Paniagua Zambrana, Instituto de Ecologia, Universidad Mayor de San Andres, La Paz, Bolivia; Ethnobotanical research in southern Peru and Bolivia.

Juan Carlos Penagos Zuluaga, PhD student Department of Evolution, Ecology & Organismal Biology at The Ohio State University in Columbus, Ohio; works on Lauraceae.; Skype: Jpenagos

Oliver Phillips, University of Leeds, U.K., plant community ecology.

George Pilz, Escuela Agrícola Panamericana, Zamorano, Honduras; Mesoamerican Nyctaginaceae.

John J. Pipoly, III, Ph.D., FLS, Program/Project Coordinator, Environmental Education Program, Parks and Recreation Division,

J. Chris Pires, Assistant Professor, University of Missouri-Columbia; Brassicaceae and Onagraceae.

Greg Plunkett, Department of Biology, Virginia Commonwealth University, Richmond, Virginia; phylogenetics and evolution of Apiales, especially Araliaceae.

Roger M. Polhill, Royal Botanic Gardens, Kew, U.K.; Leguminosae and African Loranthaceae and Viscaceae.

Sylvain Razafimandimbison, Stockholm University, Department of Botany; researcher and project coordinator at the Bergius Foundation; collaborates with Pete Lowry on the Madagascar project; Rubiaceae.

Paul Redfearn, Jr., Southwest Missouri State University, Springfield, Missouri; mosses of China and the interior highlands of North America, North American Leucobryum (Dicranaceae).

Susanne S. Renner, University of Munich, Germany; plant reproductive ecology, biogeography, and plant sex chromosomes; Melastomataceae, Cucurbitaceae; Monimiaceae, Siparunaceae.

Enrique Rentería, Honorary Curator, Medellín, Colombia

Carlos Reynel, Universidad Nacional Agraria-La Molina, Lima, Peru; flora of Peru, systematics of New World Zanthoxylum (Rutaceae).

Zachary S. Rogers, New Mexico State University, Las Cruces, New Mexico; Thymelaeaceae worldwide.

Steven Rogstad, University of Cincinnati, Cincinnati, Ohio; systematics and population biology of selected Malesian and north temperate plant species.

Ricardo Rueda, Universidad Nacional Autónoma de Nicaragua-León, León, Nicaragua; Verbenaceae, ethnobotany, flora of Nicaragua, especially the Bosawas and Indio Maíz Reserves.

Tammy Sage, University of Toronto, Ontario, Canada; plant reproductive physiology and development.

Barbara Schaal, (See Associated University Faculty)

David Seigler, University of Illinois, Urbana, Illinois; the role of plant secondary compounds, especially cyanogenic compounds, in biological interactions.

Stephen Sharnoff, Berkeley, California; North American lichens.

Douglas Sharon, University of California; study of South American Shamanism.

A. Johathan Shaw, Duke University, Durham, North Carolina; bryophytes.

R. D. Sheffer, Indiana University Northwest, Gary, Indiana; biosystematic studies of Anthurium and Syngonium (Araceae).

Seema Nayan Sheth, CCSD-Analysis Unit.

Alan R. Smith, University of California?Berkeley, California; neotropical ferns, especially Thelypteridaceae and Grammitidaceae.

Neil Snow, Pittsburgh State University, Pittsburgh, Kansas.  

Bonaventure Sonké, Department of Biology, Higher Teacher’s Training College, University of Yaounde I Cameroon; plant systematics.  or

Victoria Sork, Department of Organismic Biology, Ecology, and Evolution, UCLA; evolutionary ecology, conservation biology.

Mario Sousa, Honorary Curator, National Herbarium, Mexico City, Mexico; mexican and central american Fabaceae.

Lloyd Stark, University of Nevada, Las Vegas, Nevada; bryophytes.

Kim Steiner, California Academy of Sciences, San Francisco, CA; Diascia (Scrophulariaceae) and the evolution of oil secretion as a pollination syndrome.

Raymond E. Stotler, Southern Illinois University-Carbondale, Illinois; bryophytes (liverworts and anthocerotes).

Carolina Tellez Alvarado, Museo de Historia Natural, Universidad Antenor Orrego; collaborates with Rainer Bussmann, ethnobotany.   

Alan R. Templeton, Washington University, St. Louis, Missouri.

Eric J. Tepe, Ph.D., Dept. of Biological Sciences at University of Cincinnati, Adjunct Assistant Professor; plant systematics including taxonomy, phylogenetics, biogeography and diversification. (See Web Page) or

Nicholas Texier, Ph.D. student collaborating with Dr. Tariq Stevart in Gabon.

Justin R. Thomas, Institute of Botanical Training, LLC; Missouri Flora

Stephen L. Timme, Pittsburg State University, Pittsburg, Kansas; bryophytes.

Gordon Tucker, Eastern Illinois University, Charleston, IL; Cyperus and neotropical Cyperaceae.

Will Tuladhar-Douglas, Dr., ecosocial anthropology, ethnobiology, conservation of biocultural diversity; working with Rainer Bussmann in the Himalayan region and Nepal.

Thomas Valone, Saint Louis University, St. Louis, Missouri; ecology of arid ecosystems, foraging ecology and theory.

Nan C. Vance, USDA Forest Service, PNW Research Station, Corvallis, Oregon; pollination biology.

Ina Vandebroek, The New York Botanical Garden; research is on traditional plant use in the Andes and Caribbean communites in New York. Also in Peru, Bolivia, and Ecuador.

Carlos Vega, Ingeniero Industrial con especializacion en proyectos sociales y economicos, consultor en temas sobre: pueblos indigenas, biocomercio, planes de bionegocios, cadenas de valor para productos de lat biodiversidad, desarrollo local y turismo sostenible (ethnobotany). 

Gregory Allen Wahlert,  Ph.D., environmental and plant biology.

Alan Whittemore, U.S. National Arboretum, Washington, D.C.; liverworts.

Justyna Wiland-Szymanska, Adam Mickiewicz University, Poznan, Poland; tropical african Hypoxidaceae.  or

Chris Wilks, Wildlife Conservation Society-Gabon, Libreville, Gabon; forest inventory.

Paddy Woodworth, School of Languages and Literatures, University College Dublin; journalist and author; ecological restoration.

Pan-cheng Wu, Honorary Curator, Chinese Academy of Sciences, Beijing, China; Bryophytes.

Diane Wyse Jackson, Garden Ambassador; computer programming.

George Yatskievych, Curator, TEX-LL Herbarium, Plant Resources Center, University of Texas at Austin; systematics of pteridophytes and parasitic angiosperm families; floristics and biogeography of the United States (especially Missouri) and Mexico; plant conservation and invasive exotic species.

Richard H. Zander, Bryology. (See Staff Page.)

Amy Elise Zanne, Assistant Professor, University of Missouri; plants in Africa and the United States.