1953 - offer 59A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Company, 1953)

1953 - offer 59B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Company, 1953)

1997 IUCN red list of threatened plants (1997)

500 wild flowers of San Antonio and vicinity - Quillin, Ellen Schulz, 1892 -1970 (The author, 1922)

Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Realschul-Buchhandlung, 1891)

Abhandlungen der Königlichen Gesellschaft der Wissenschaften zu Göttingen - Akademie der Wissenschaften in Göttingen (In der Dieterichschen Buchhandlung, 1878)

Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften - Königlich Bayerische Akademie der Wissenschaften (1844)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1991)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1992)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1994)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1995)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1996)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1998)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1999)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2001)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2002)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2003)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2007)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2010)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2011)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2012)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2013)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2018)

Acta de la Academia Nacional de Ciencias Exactas - Academia Nacional de Ciencias Exactas (Argentina) (La Academia, 1875)

Actes de la société d'histoire naturelle de Paris : tome premier, premiere partie - Société d'Histoire Naturelle de Paris (l'Impr. de la Société, 1792)

Adansonia - Muséum national d'histoire naturelle (France) (Muséum d'histoire naturelle, Laboratoire de Phanérogamie, 1962)

Adansonia - Muséum national d'histoire naturelle (France) (Muséum d'histoire naturelle, Laboratoire de Phanérogamie, 1963)

Adriani van Royen ... Florae leydensis prodromus :exhibens plantas quae in Horto academico Lugduno-Batavo aluntur - Royen, Adrianus van, 1704 -1779 (Apud Samuelen Luchtmans academiae typographum, 1740)

Agriculture of North Carolina, part II : containing a statement of the principles of the science upon which the practices of agriculture as an art are founded - Emmons, Ebenezer, 1799 -1863 (W.W. Holden, Printer to the State, 1860)

Alien plants growing without cultivation in California - Robbins, Wilfred William, 1884 -1952 (California Agricultural Experiment Station, College of Agriculture, University of California, 1940)

Allan Hancock Pacific expeditions. [Reports] - Allan Hancock Foundation. (University of Southern California Press, 1946)

Allgemeine botanische Zeitschrift für Systematik, Floristik, Pflanzengeographie etc - Kneucker, Johann Andreas, 1862 -1946 (J.J. Reiff, 1919)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1851)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1839)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1841)

Allgemeine Naturgeschichte für alle Stände - Oken, Lorenz, 1779 -1851 (Hoffman'sche Verlags-Buchhandlung, 1842)

Allgemeines Polyglotten-Lexicon der Naturgeschichte mit erklaerenden Anmerkungen - Nemnich, Philipp Andreas, 1764 -1822 (Nemnich, 1793)

Allgemeines teutsches Garten-Magazin, oder, Gemeinnützige Beiträge für alle Theile des praktischen Gartenwesens (im Verlage des Landes-Industrie-Comptoirs, 1811)

L'Amérique Centrale.|bRecherches sur sa flore et sa géographie physique. Résultats d'un voyage dans les états de Costa Rica et de Nicaragua exécuté pendant les années 1846-1848 - Ørsted, A. S. (Anders Sandøe), 1816 -1872 (Impr. de B. Luno par F. S. Muhle, 1863)

American bee journal (Dadant & Sons, 1880)

The American botanist and florist : including lessons in the structure, life, and growth of plants : together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the Americ by Alphonso Wood - Wood, Alphonso, 1810 -1881 (A. S. Barnes, 1877)

The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A. S. Barnes, 1870)

The American botanist and florist, including lessons in the structure, life growth of plants, together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (Barnes, 1900)

The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A. S. Barnes & Company, 1873)

The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A.S. Barnes & company, 1870)

American fern journal - American Fern Society. (American Fern Society, 1972)

American honey plants; together with those which are of special value to the beekeeper as sources of pollen - Pellett, Frank Chapman, 1879 -1951 (American Bee Journal, 1920)

American journal of botany - Botanical Society of America. (Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1918)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1885)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1891)

The American journal of science, & c (J. Eastburn and Co, 1819)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1842)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1841)

The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1856)

The American midland naturalist - University of Notre Dame (University of Notre Dame, 1911)

American Museum novitates - American Museum of Natural History (American Museum of Natural History, 1921)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1903)

American plants ... [Descriptions, bibliographical notes, synonymy, and other information, comp. from many sources] - Orcutt, Charles Russell, 1864 -1929 (1907)

American wild flower seeds for "natural" gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (David E. Burns, 1954)

Anales científicos paraguayos - Bertoni, Moisés S. (1901)

Anales de la Academia de Ciencias Médicas, Físicas y Naturales de la Habana - Academia de Ciencias Médicas, Físicas y Naturales de La Habana. (Academia de Ciencias Médicas, Físicas y Naturales de la Habana, 1868)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1899)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1905)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1967)

Anales de la Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (La Sociedad, 1881)

Anales de la Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (La Sociedad, 1890)

Anales de la Universidad Central del Ecuador - Universidad Central del Ecuador. (Imp. de la Universidad Central, 1903)

Anales del Museo Nacional de Buenos Aires - Museo Nacional de Buenos Aires. (Impr. de Juan A. Alsina, 1895)

Anales del Museo Nacional de Chile - Museo Nacional de Chile. (el Museo, 1891)

Anales del Museo Nacional de Chile - Museo Nacional de Chile. (el Museo, 1905)

Anales del Museo Nacional de Historia Natural de Buenos Aires - Museo Nacional de Historia Natural de Buenos Aires. (Impr. y Casa Editora "Juan A. Alsina", 1916)

Anales del Museo Nacional de Montevideo - Museo Nacional de Montevideo (El Museo, 1896)

Anales del Museo Nacional de Montevideo - Museo Nacional de Montevideo (El Museo, 1901)

Analyse des familles des plantes, avec l'indication des principaux genres qui s'y rattachent - Du Mortier, B.-C. (Barthélemy-Charles), 1797 -1878 (Impr. de J. Casterman, Aîne, 1829)

Analytical key to the ferns and flowering plants in the Atlantic section of middle Florida. (Wild and cultivated) - Baerecke, John Frederic, 1851 -1920 (News Pub. Co, 1914)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1894)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1900)

Annalen des Wiener Museums der Naturgeschichte - Wiener Museum der Naturgeschichte. (Rohrmann und Schweigerd, 1836)

Annales botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus F. Hofmeister, 1848)

Annales des sciences naturelles Botanique (Fortin, Masson, 1853)

Annales des sciences naturelles Botanique (Fortin, Masson, 1895)

Annales générales des sciences physiques - Bory de Saint-Vincent, M. (Jean Baptiste Geneviève Marcellin), 1778 -1846 (De l'impr. de Weissenbruch, 1819)

Annales Musei Botanici Lugduno-Batavi - Miquel, Friedrich Anton Wilhelm 1811 -1871 (Apud C. G. van der Post, 1865)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1841)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1853)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1899)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1903)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1904)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1913)

The Annals and magazine of natural history; zoology, botany, and geology (Taylor and Francis, Ltd, 1914)

Annals of horticulture in North America; a witness of passing events and a record of progress - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Rural publishing company, [etc.], 1892)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1901)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1902)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1916)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1951)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1967)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1975)