1997 IUCN red list of threatened plants (1997)

Aquaphyte : newsletter of the IPPC Aquatic Weed Program of the University of Florida, a part of the International Plant Protection Center of the Oregon State University, which is funded by the United States Agency for International Development - University of Florida. Center for Aquatic Plants. (The Program, 1991)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1983)

Bulletin de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Société impériale des naturalistes de Moscou, 1915)

Catálogo de las plantas vasculares de la República Argentina - Morrone, Osvaldo (Missouri Botanical Garden, 1999)

Checklist of the vascular plants of Alabama from the John D. Freeman Herbarium and the University of Alabama Herbarium - Morton, Cynthia M. (Carnegie Museum of Natural History, 2002)

Claytonia : newsletter of the Arkansas Native Plant Society - Arkansas Native Plant Society. (The Society], 1998)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1937)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1940)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1940)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1940)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1946)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1900)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1900)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1900)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1900)

Endangered and threatened plants and animals of North Carolina : proceedings of the Symposium on Endangered and Threatened Biota of North Carolina, 1, biological concerns, Meredith College, Raleigh, November 7-8, 1975 - North Carolina State Museum of Natural History. (N.C. State Museum of Natural History, 1977)

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Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXI usque ad finem anni MDCCCCXXV complectens Supplementum septimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXXVI usque ad finem anni MDCCCCXL nonnulla etiam antea edita complectens Supplementum decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1947)

The Journal of the Alabama Academy of Science - Alabama Academy of Science. ([Auburn University Printing Service], 1991)

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Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2008)

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Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2008)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1897)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1900)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2011)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2011)

Monograph of the North American Umbelliferae - Coulter, John Merle, 1851 -1928 (G.P.O, 1900)

Monograph of the North American Umbelliferae - Coulter, John Merle, 1851 -1928 (G.P.O, 1900)

Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet - Engler, Adolf, 1844 -1930 (W. Engelmann, 1887)

North American flora - New York Botanical Garden (New York Botanical Garden, 1944)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1986)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1987)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1990)

Reevaluation of vegetational characteristics at the CERC Field Research Facility, Duck, North Carolina - Coastal Engineering Research Center (U.S.). Field Research Facility. (The Center, 1983)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1937)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1947)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1947)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1950)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1988)

Tulane studies in zoology and botany - Tulane University. Department of Biology. (Tulane University, 1983)

Tulane studies in zoology and botany - Tulane University. Department of Biology. (Tulane University, 1983)

Vegetative study at the Duck Field Research Facility, Duck, North Carolina - Coastal Engineering Research Center (U.S.) (U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 1976)

Vegetative study at the Duck Field Research Facility, Duck, North Carolina - Coastal Engineering Research Center (U.S.) (U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 1976)

Virginia journal of science - Virginia Academy of Science. (Virginia Academy of Science, Dept. of Physics and Geophysical Science, School of Sciences and Health Professions, Old Dominion University, 1987)