1997 IUCN red list of threatened plants (1997)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2005)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2008)

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, 2015)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2015)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2017)

American agriculturist (Orange Judd Co., Publishers [etc.], 1878)

The American botanist : a monthly journal for the plant lover - Clute, Willard Nelson, 1869 -1950 (Willard N. Clute & Co, 1907)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1879)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1888)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1889)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1835)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1835)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1900)

American journal of pharmacy - Philadelphia College Of Pharmacy (Philadelphia College of Pharmacy, 1910)

The American merino: for wool and for mutton. A practical treatise on the selection, care, breeding and diseases of the merino sheep in all sections of the United States - Powers, Stephen. (O. Judd co, 1887)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1891)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1887)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1887)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1887)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1908)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1908)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1908)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1908)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1911)

American veterinary review - American Veterinary Medical Association (American Veterinary Medical Association, 1912)

An analytical key to some of the common flowering plants of the Rocky Mountain Region - Nelson, Aven, 1859 -1952 (D. Appleton and Company, 1902)

An analytical key to some of the common flowering plants of the Rocky Mountain Region - Nelson, Aven, 1859 -1952 (D. Appleton and Company, 1902)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1937)

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Applied and economic botany, especially adapted for the use of students in technical schools, agricultural, pharmaceutical and medical colleges, and also as a book of reference for chemists, food analysts and students engaged in the morphological and physiological study of plants - Kraemer, Henry, 1868 -1924 (The author, 1914)

Applied and economic botany, especially adapted for the use of students in technical schools, agricultural, pharmaceutical and medical colleges, and also as a book of reference for chemists, food analysts and students engaged in the morphological and physiological study of plants - Kraemer, Henry, 1868 -1924 (The author, 1914)

Applied and economic botany for students in technical and agricultural schools, pharmaceutical and medical colleges, for chemists, food analysts and for those engaged in the morphological and physiological study of plants - Kraemer, Henry, 1868 -1924 (Wiley, 1916)

Applied and economic botany for students in technical and agricultural schools, pharmaceutical and medical colleges, for chemists, food analysts and for those engaged in the morphological and physiological study of plants - Kraemer, Henry, 1868 -1924 (J. Wiley & Sons, inc, 1916)

Applied and economic botany for students in technical and agricultural schools, pharmaceutical and medical colleges, for chemists, food analysts and for the those engaged in the morphological and physiological study of plants - Kraemer, Henry, 1868 -1924 (Wiley, 1916)

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Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1883)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1883)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1880)

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The Asa Gray bulletin - McVaugh, Rogers, 1909 - (1952)

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Beihefte zum Botanischen Centralblatt Abteilung B Systematik, Pflanzengeographie, angewandte Botanik, etc (Verlag von C. Heinrich, 1897)

Beihefte zum Botanischen Centralblatt Abteilung B Systematik, Pflanzengeographie, angewandte Botanik, etc (Verlag von C. Heinrich, 1899)

La biodiversidad en Chihuahua : estudio de estado - Barajas, Nélida (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2014)

La biodiversidad en Durango estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2017)

La biodiversidad en Durango estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2017)

La biodiversidad en Durango estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2017)

La biodiversidad en Guanajuato: estudio de Estado - Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO) (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2012)

La biodiversidad en Veracruz : estudio de estado - Cruz Angón, Andrea (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2011)

Biologia Centrali-Americana :zoology, botany and archaeology - Godman, Frederick Du Cane, 1834 -1919 (Published for the editors by R. H. Porter], 1879)

A biological survey of Colorado - United States. Bureau of Biological Survey. (Government Printing Office, 1911)

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Botanical gazette ([publisher not identified], 1882)

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Botanical gazette ([publisher not identified], 1882)

Botanical gazette ([publisher not identified], 1891)

Botanical gazette ([publisher not identified], 1898)

Botanical gazette ([publisher not identified], 1906)

Botanical gazette ([publisher not identified], 1909)

Botanical gazette ([publisher not identified], 1912)

Botanical gazette ([publisher not identified], 1917)

Botanical survey of Nebraska. Conducted by the Botanical Seminar. I-VII - University of Nebraska (Lincoln campus). Botanical Seminar. (1892)

Botanical survey of Nebraska. Conducted by the Botanical Seminar. I-VII - University of Nebraska (Lincoln campus). Botanical Seminar. (1892)

Botanische Bemerkungen - Presl, K. B. 1794 -1852 (G. Haase, 1844)

Botanische Zeitung - Mohl, Hugo von, 1805 -1872 (A. Förstner, 1882)

Botanische Zeitung - Mohl, Hugo von, 1805 -1872 (A. Förstner, 1882)

Botanische Zeitung - Mohl, Hugo von, 1805 -1872 (A. Förstner, 1882)

Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebr. Borntraeger, 1882)

Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebr. Borntraeger, 1882)

Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebr. Borntraeger, 1882)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1882)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1887)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1903)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1908)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1908)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1918)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1922)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([T.C. Davis], 1899)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([Press of T. C. Davis], 1899)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([Press of T. C. Davis & son], 1899)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([Press of T. C. Davis], 1899)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([Press of T. C. Davis & son], 1899)

The botanists of Philadelphia and their work - Harshberger, John W. (John William), 1869 -1929 ([Press of T. C. Davis & son], 1899)

Brockhaus' Konversations-Lexikon (F.A. Brockhaus, 1894)

Bulletin - United States National Museum (G.P.O, 1907)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1892)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1892)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1905)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1907)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1909)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1887)

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Bulletin of the Philosophical Society Scientific series - Philosophical Society (Charlottesville, Va.). Scientific Section. (University of Virginia, 1910)

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Bulletin - United States. Bureau of Entomology. (G.P.O, 1908)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1908)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1908)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1908)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

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Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1908)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1911)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Plant Industry. (G.P.O, 1912)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1902)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1902)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

Bulletin - United States. Bureau of Entomology. (G.P.O, 1911)

cao yuan guan li xue - Wang, Dong. (xu mu shou yi tu shu chu ban she, 1955)

The care of animals - Mayo, Nelson S. (Nelson Slater), 1866 -1958 (The Macmillan company, 1903)

The care of animals - Mayo, Nelson S. (Nelson Slater), 1866 -1958 (The Macmillan company, 1903)

The care of animals : a book of brief and popular advice on the diseases and ailments of farm animals - Mayo, Nelson S. (Nelson Slater), 1866 -1958 (The Macmillan Company, 1905)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1908)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1920)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1920)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1924)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1982)

Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1915)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1915)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1915)

Checklist of vascular plants of the Southern Rocky Mountain Region - Snow, Neil Wilton (2009)

Civic biology; a textbook of problems, local and national, that can be solved only by civic coöperation - Dawson, Jean, 1873 - (Ginn and Company, 1918)

Civic biology; a textbook of problems, local and national, that can be solved only by civic coöperation - Dawson, Jean, 1873 - (Ginn and Company, 1918)

Civic biology, a textbook of problems, local and national, that can be solved only by civic coöperation - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn, 1918)

Civic biology; a textbook of problems, local and national, that can besolved only by civic cooperation - Dawson, Jean, 1873 - (Ginn and company, 1918)

Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation - Dawson, Jean, 1873 - (Ginn, 1918)

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Common weeds of the United States - United States. Agricultural Research Service. (Dover Publications, 1971)

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Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1892)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1892)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1892)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1915)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1915)

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Contributions to western botany.no. 1-18 - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1908)

Contributions to western botany.no. 1-18 - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1930)

Crotalaria, a new legume for the South - McKee, Roland, 1880 - (U.S. Dept. of Agriculture, 1931)

Cyclopedia of farm animals - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1922)

Cyclopedia of farm animals - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1922)

A dictionary of American plant names - Clute, Willard Nelson, 1869 -1950 (W. N. Clute, 1923)

A dictionary of plant names - Hollandsche Maatschappij der Wetenschappen (M. Nijhoff, 1911)

Disease in captive wild mammals and birds; incidence, description, comparison. With a foreword by Charles B. Penrose - Fox, Herbert, 1880 -1942 (Lippincott, 1923)

Disease in captive wild mammals and birds; incidence, description, comparison. With a foreword by Charles B. Penrose - Fox, Herbert, 1880 -1942 (Lippincott, 1923)

The diseases of animals; a book of brief and popular advice on the care and the common ailments of farm animals - Mayo, Nelson S. (Nelson Slater), 1866 -1958 (The Macmillan Company, 1913)

The diseases of animals; a book of brief and popular advice on the care and the common ailments of farm animals - Mayo, Nelson S. (Nelson Slater), 1866 -1958 (Macmillan, 1917)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (W. R. Jenkins, 1905)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (W. R. Jenkins, 1905)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (W. R. Jenkins, 1905)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (W. R. Jenkins, 1905)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (W. R. Jenkins, 1905)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (American Veterinary Pub.Co, 1920)

Diseases of cattle, sheep, goats and swine - Dollar, Jno. A. W. (John A. W.) (American Veterinary Pub.Co, 1920)

Entomological news - American Entomological Society. (American Entomological Society, 1991)

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Entomological news - American Entomological Society. (American Entomological Society, 1991)

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El estudio - Instituto Médico Nacional (Mexico) (Instituto Médico Nacional, 1893)

Une excursion botanique au Colorado et dans le Far West - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (Secrétariat de la Fédération, 1880)

Une excursion botanique au Colorado et dans le Far West - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (Secrétariat de la Fédération, 1880)

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Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1889)

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Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1907)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1907)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1908)

Farmer's cyclopedia : a compilation of such bulletins and reports as are indispensable to the practical farmer (Doubleday, Page, 1915)

Farmer's cyclopedia : a compilation of such bulletins and reports as are indispensable to the practical farmer (Doubleday, Page, 1915)

Farmer's cyclopedia : a compilation of such bulletins and reports as are indispensable to the practical farmer (Doubleday, Page, 1915)

Field, forest, and garden botany; a simple introduction to the common plants of the United States east of the 100th meridian, both wild and cultivated - Gray, Asa, 1810 -1888 (American Book Company, 1895)

Flora del bajío y de regiones adyacentes - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2016)

Flora del Valle de Tehuacán-Cuicatlán (Universidad Nacional Autónoma de México, 2014)

Flora del Valle de Tehuacán-Cuicatlán (Universidad Nacional Autónoma de México, 2014)

Flora del Valle de Tehuacán-Cuicatlán (Universidad Nacional Autónoma de México, 2014)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Nebraska; a list of the conifers and flowering plants of the state with keys for their determination - Petersen, Niels Frederick, 1877 - (1912)

Flora of Nebraska; a list of the conifers and flowering plants of the state, with keys for their determination - Petersen, Niels Frederick, 1877 - (Printed by State Printing Co, 1912)

Flora of Nebraska; a list of the conifers and flowering plants of the state, with keys for their determination - Petersen, Niels Frederick, 1877 - (Printed by State Printing Co, 1912)

Flora of Nebraska; a list of the ferns, conifers and flowering plants of the state with keys for their determination - Petersen, Niels Frederick, 1877 - (1923)

Flora of New Mexico - Standley, Paul Carpenter, 1884 -1963 (G.P.O, 1915)

Flora of New Mexico. By E.O. Wooton and Paul C. Standley - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1915)

Flora of New Mexico - Standley, Paul Carpenter, 1884 -1963 (G.P.O, 1915)

Flora of New Mexico. By E.O. Wooton and Paul C. Standley - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1915)

Flora of New Mexico. By E.O. Wooton and Paul C. Standley - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1915)

Flora of the four corners region : vascular plants of the San Juan River drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil...[et al.] - Heil, Kenneth D. (Missouri Botanical Garden, 2013)

Flora of the four corners region : vascular plants of the San Juan River drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil...[et al.] - Heil, Kenneth D. (Missouri Botanical Garden, 2013)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1917)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)

Flora of the Rocky Mountains and adjacent plains : Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (Rydberg, 1917)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)

The flora of the Rocky Mountains - Campbell, Robert, 1835 -1921 (s.n, 1900)

Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahoma and Texas east of the one hundredth meridian - Small, John Kunkel, 1869 -1938 (The author, 1913)

Flowering plants and ferns of Arizona - Kearney, Thomas H. (Thomas Henry), 1874 -1956 (U.S. Dept. of Agriculture, 1942)

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The Gardener's monthly and horticulturist (Charles H. Marot, 1885)

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The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1888)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1906)

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The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1978)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1978)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1980)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1981)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1981)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1983)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1983)

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Handbuch der Pflanzenkrankheiten - Graebner, Paul, 1871 -1933 (P. Parey, 1913)

Handbuch der Pflanzenkrankheiten - Graebner, Paul, 1871 -1933 (P. Parey, 1925)

Handbuch der Pflanzenkrankheiten - Sorauer, Paul, 1839 -1916 (P. Parey, 1921)

Handbuch der Pflanzenkrankheiten - Sorauer, Paul, 1839 -1916 (P. Parey, 1921)

Handbuch der Pflanzenkrankheiten - Lindau, Gustav, 1866 -1923 (P. Parey, 1908)

Handbuch der Pflanzenkrankheiten - Lindau, Gustav, 1866 -1923 (P. Parey, 1908)

Handbuch der Tropenkrankheiten - Mense, Carl Anton, 1861 -1938 (Johann Ambrosius Barth, 1905)

Handbuch der Tropenkrankheiten - Mense, Carl Anton, 1861 -1938 (J. A. Barth, 1914)

Handbuch der Tropenkrankheiten - Mense, Carl Anton, 1861 -1938 (J. A. Barth, 1921)

Henderson's Handbook of plants - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1881)

Herpetofauna of Lake Meredith National Recreation Area and Alibates Flint Quarries National Monument and the vicinity (Potter, Hutchinson, and Moore Counties, Texas) - Patrikeev, Michael. (Museum of Texas Tech University, 2008)

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Hymenoptera of America north of Mexico : synoptic catalog, second supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1967)

Hymenoptera of America north of Mexico : synoptic catalog, second supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1967)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1913)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1913)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's Sons, 1896)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1897)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1897)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1897)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

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John Charles Frémont : botanical explorer - Welsh, Stanley L. (Missouri Botanical Garden Press, 1998)

John Charles Frémont : botanical explorer - Welsh, Stanley L. (Missouri Botanical Garden Press, 1998)

John Charles Frémont : botanical explorer - Welsh, Stanley L. (Missouri Botanical Garden Press, 1998)

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Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1887)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1888)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1888)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1889)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1889)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1892)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1892)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1896)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1909)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1918)

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The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

The Kansas University science bulletin - University of Kansas. Museum of Natural History. (The University, 1917)

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Live stock : a cyclopedia for the farmer and stock owner including the breeding, care, feeding and management of horses, cattle, swine, sheep and poultry with a special department on dairying : being also a complete stock doctor : with one thousand explanatory engravings - Baker, A. H. (Austin Hart), 1852 - (Intercollegiate Press, 1914)

Locoweed disease of sheep - Marshall, Harry Taylor, 1875 -1929 (University of Virginia, 1914)

Locoweed disease of sheep - Marshall, Harry Taylor, 1875 -1929 (University of Virginia, 1914)

Locoweed disease of sheep - Marshall, Harry Taylor, 1875 -1929 (University of Virginia, 1914)

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Mammals of the Mexican boundary of the United States. A descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees - Mearns, Edgar Alexander, 1856 -1916 (Govt. print. off, 1907)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America : with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1910)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (Torch Press, 1910)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch press, 1911)

Manual of the botany (Phaenogamia and Pteridophyta) of the Rocky mountain region, from New Mexico to the British boundary - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and company, 1885)

Manual of the botany (Phænogamia and Pteridophyta) of the Rocky mountain region, from New Mexico to the British boundary - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and Company, 1885)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (H. Holt, 1907)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (H. Holt and Co, 1901)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (H. Holt, 1907)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual of the flora of the northern states and Canada, by Nathaniel Lord Britton ... - Britton, Nathaniel Lord, 1859 -1934 (H. Holt and Co, 1901)

Manual of the flora of the northern states and Canada, by Nathaniel Lord Britton ... - Britton, Nathaniel Lord, 1859 -1934 (H. Holt and Co, 1901)

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Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (1885)

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Minnesota botanical studies - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey of Minnesota, 1909)

Minnesota botanical studies - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey of Minnesota, 1909)

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Miscellaneous papers - United States. Bureau of Plant Industry. (Govt. Print. Off, 1908)

Miscellaneous papers - United States. Bureau of Plant Industry. (Govt. Print. Off, 1908)

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National list of scientific plant names - United States. Soil Conservation Service. (U.S. Dept. of Agriculture, Soil Conservation Service, 1982)

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Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & Co, 1902)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & Co, 1902)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & co, 1903)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & Company, 1902)

Nature study and life - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn & Co, 1902)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American book company, 1909)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American Book Company, 1909)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American book company, 1909)

New manual of botany of the central Rocky Mountains, vascular plants - Coulter, John Merle, 1851 -1928 (American Book Co, 1909)

New manual of botany of the central Rocky Mountains, vascular plants - Coulter, John Merle, 1851 -1928 (American Book Co, 1909)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2010)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2004)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2004)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2008)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1910)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1918)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1918)

North American flora - New York Botanical Garden (New York Botanical Garden, 1912)

North American flora - New York Botanical Garden (New York Botanical Garden, 1927)

North American flora - New York Botanical Garden (New York Botanical Garden, 1931)

North American flora - New York Botanical Garden (New York Botanical Garden, 1919)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1902)

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Pamphlets on forestry in California (1900)

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Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Pharmacal plants and their culture - Schneider, Albert, 1863 -1928 (Richardson, Superintendent of State Printing, 1912)

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Phytogeographic survey of North America. A consideration of the phytogeography of the North American continent, including Mexico, Central America and the West Indies, together with the evolution of North American plant distribution - Harshberger, John W. (John William), 1869 -1929 (W. Engelmann, 1911)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

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Phytoneuron (Guy L. Nesom, 2020)

Pinyon-juniper woodlands of the Great Basin : distribution, flora, vegetal cover - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1979)

Plant associations of region two : potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas - Johnston, Barry C. (USDA Forest Service, Rocky Mountain Region, 1987)

Plant communities of playa wetlands in the southern Great Plains - Haukos, David A. (Museum of Texas Tech University, 2004)

Plant communities of playa wetlands in the southern Great Plains - Haukos, David A. (Museum of Texas Tech University, 2004)

Plant indicators: the relation of plant communities to process and practice - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Carnegie Institution of Washington, 1920)

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Plant lists : Texas - Lay, Daniel W., (1930)

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Plantae Wrightianae texano-neo-mexicanae :an account of a collection of plants made by Charles Wright ... - Gray, Asa, 1810 -1888 (Smithsonian Institution, 1852)

The poisonous plants of New Jersey - Halsted, Byron D. (Byron David), 1852 -1918 (New Jersey Agricultural Experiment Stations, 1899)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton and company, 1902)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton and company, 1902)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton, 1902)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton, 1902)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton and company, 1902)

Preliminary catalogue of plants poisonous to stock - Chesnut, V. K. (Victor King), 1867 -1938 (1898)

Preliminary catalogue of plants poisonous to stock - Chesnut, V. K. (Victor King), 1867 -1938 (1898)

Preliminary catalogue of plants poisonous to stock - Chesnut, V. K. (Victor King), 1867 -1938 (1898)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (Govt. print. off, 1898)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (U.S. Dept. of Agriculture, Division of Botany, 1898)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (U.S. Dept. of Agriculture, Division of Botany, 1898)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (Govt. print. off, 1898)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (Govt. print. off, 1898)

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Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1957)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1983)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1991)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1917)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1885)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1885)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1944)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

Range and pasture management - Sampson, Arthur W. (Arthur William), 1884 -1967 (John Wiley, 1923)

Range and pasture management - Sampson, Arthur W. (Arthur William), 1884 -1967 (John Wiley, 1923)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U.S. Govt. print. off, 1937)

Report number I, the natural resources survey of the Conservation and Natural Resources Commission of New Mexico - New Mexico. Conservation; Natural Resources Commission. (New Mexican Printing Co, 1911)

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Report of the Commissioner of Agriculture ... - United States. Department of Agriculture. (G.P.O, 1862)

Report of the Commissioner of Agriculture ... - United States. Department of Agriculture. (G.P.O, 1862)

Report of the Commissioner of Agriculture ... - United States. Department of Agriculture. (G.P.O, 1884)

Report of the Commissioner of Agriculture ... - United States. Department of Agriculture. (G.P.O, 1863)

Report of the Commissioner of Agriculture ... - United States. Department of Agriculture. (G.P.O, 1863)

Report of the exploring expedition to the Rocky Mountains in the year 1842 : and to Oregon and north California in the years 1843-44 - Hall, James, 1811 -1898 (Blair and Rives, Printers, 1845)

Report on the botany of the expedition - Gray, Asa, 1810 -1888 (War Dept, 1855)

Report on the flora of western and southern Texas - Havard, Valery, 1846 -1927 (1885)

Report on the flora of western and southern Texas - Havard, Valery, 1846 -1927 (1885)

Report on the flora of western and southern Texas - Havard, Valery, 1846 -1927 (1885)

Report on the flora of western and southern Texas - Havard, Valery, 1846 -1927 (1885)

Reports of explorations and surveys : to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson printer, 1855)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1855)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1855)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1855)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1856)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Revision of North-American species of Astragalus - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1923)

Revision of North-American species of Astragalus - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1923)

Revision of North-American species of Astragalus - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1923)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1930)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1930)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1932)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Rock garden alpines, and other Colorado native plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Upton Gardens, 1933)

Rock garden alpines, and other Colorado native plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Upton Gardens, 1933)

Rocky mountain flowers; an illustrated guide for plantlovers and plant-users - Clements, Frederic E. (Frederic Edward), 1874 -1945 (the H.W. Wilson company, 1914)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1889)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2022)

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Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1968)

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Science - American Association for the Advancement of Science. ([s.n.], 1898)

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Select extra-tropical plants : readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (C. Troedel and Co, 1891)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (1895)

Select extra-tropical plants readily eligible for Victorian industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

A selected bibliography on management of western ranges, livestock, and wildlife - Renner, Frederic Gordon, 1897 - (U.S. Dept. of Agriculture, 1938)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1938)

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Sheep diseases - Baker, Eustace Thurman, 1882 - (American journal of veterinary medicine, 1916)

Sheep diseases - Baker, Eustace Thurman, 1882 - (American journal of veterinary medicine, 1916)

Sheep diseases - Baker, Eustace Thurman, 1882 - (American journal of veterinary medicine, 1916)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1962)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1962)

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Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1853)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1878)

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Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

Some miscellaneous results of the work of the Bureau of Entomology, IX - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1906)

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Special report on diseases of cattle and on cattle feeding - United States. Bureau of Animal Industry (Govt. Print. Off, 1896)

Special report on diseases of cattle and on cattle feeding - United States. Bureau of Animal Industry (Govt. print. off, 1892)

Special report on diseases of cattle - Pearson, Leonard, 1868 -1909 (Govt. print. off, 1916)

Special report on diseases of cattle - Pearson, Leonard, 1868 -1909 (Govt. print. off, 1916)

Special report on diseases of cattle - Pearson, Leonard, 1868 -1909 (Govt. Print. Off, 1912)

Special report on diseases of cattle - Pearson, Leonard, 1868 -1909 (Govt. print. off, 1904)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

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Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1898)

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Text book of veterinary medicine - Law, James, 1838 -1921 (J. Law, 1903)

Text book of veterinary medicine - Law, James, 1838 -1921 (The author, 1896)

Text book of veterinary medicine, v. 1-5 - Law, James, 1838 -1921 (The author, 1905)

Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm - Harshberger, John W. (John William), 1869 -1929 (P. Blakiston's Son & Co, 1920)

Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm - Harshberger, John W. (John William), 1869 -1929 (P. Blakiston's Son & Co, 1920)

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Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R. M. McBride & company, 1920)

Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R.M. McBride, 1920)

Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R.M. McBride, 1920)

Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R.M. McBride, 1920)

Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R.M. McBride, 1920)

Useful wild plants of the United States and Canada - Saunders, Charles Francis, 1859 -1941 (R.M. McBride, 1920)

Vascular plants of the Desert Experimental Range, Millard County, Utah - Goodrich, Sherel (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986)

Vascular plants of the Desert Experimental Range, Millard County, Utah - Goodrich, Sherel (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986)

Die Vegetation der Erde :Sammlung pflanzengeographischer Monographien - Engler, Adolf, 1844 -1930 (W. Engelmann, 1896)

Die Vegetation der Erde :Sammlung pflanzengeographischer Monographien - Engler, Adolf, 1844 -1930 (W. Engelmann, 1896)

Veterinary studies for agricultural students - Reynolds, M. H. (Myron Herbert), 1865 - (The author, 1903)

Veterinary toxicology - Lander, G. D. (George Druce). (A. Eger, 1912)

Vick's illustrated monthly magazine (J. Vick, 1881)

The weed flora of Iowa ... - Pammel, L. H. (Louis Hermann), 1862 -1931 (Iowa Geological Survey, 1913)

The weed flora of Iowa ... - Pammel, L. H. (Louis Hermann), 1862 -1931 (Iowa Geological Survey, 1913)

The weed flora of Iowa - Pammel, L. H. (Louis Hermann), 1862 -1931 (Iowa Geological Survey, 1913)

The weeds, poison plants, and naturalized aliens of Victoria - Victoria. Dept. of Agriculture. (J. Kemp, Government Printer, 1909)

Weeds poisonous to livestock - Hooper, J. C. ([Government of Alberta], 1919)

Western grazing grounds and forest ranges; a history of the live-stock industry as conducted on the open ranges of the arid West, with particular reference to the use now being made of the ranges in the national forests - Barnes, Will C. (Will Croft), 1858 -1936 (The Breeder's gazette, 1913)

Western grazing grounds and forest ranges; a history of the live-stock industry as conducted on the open ranges of the arid West, with particular reference to the use now being made of the ranges in the national forests - Barnes, Will C. (Will Croft), 1858 -1936 (Breeder's Gazette, 1913)

Western grazing grounds and forest ranges; a history of the live-stock industry as conducted on the open ranges of the arid West - Barnes, Will C. (Will Croft), 1858 -1936 (The Breeder's gazette, 1913)

Wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Birdwell, 1934)

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Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1893)

Zoe:a biological journal (Zoe Publishing Co, 1892)