Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1906)

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, 1920)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1925)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1973)

Contributions to Canadian botany - Macoun, James Melville, 1862 -1920 ([s. n.], 1894)

Contributions to North American ethnology. Vol. I-VII, IX - Smithsonian Institution (Govt. Print. Off, 1877)

Contributions to the botany of Vermont - Middlebury College. (Botanical Dept., University of Vermont, 1898)

Control of western Dwarf Mistletoe with the plant-growth regulator Ethephon - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1991)

Cooperative plant pest report - United States. Animal; Plant Health Inspection Service. (The Service, 1976)

Correspondence : Caspary (Robert) and Engelmann (George), 1857-1877 - Caspary, Robert, 1818 -1887 (1877)

Correspondence : Hegelmaier (Christoph) and Engelmann (George), 1864-1880 - Hegelmaier, Christoph Friedrich, 1833 -1906 (1864)

Correspondence : Parry (Charles Christopher) and Engelmann (George), 1851-1884 - Engelmann, George, 1809 -1884 (1862)

Courses in forest pathology - Overholts, Lee Oras, 1890 -1946 (1917)

Crop production. Annual report of the National research programs - United States. Science; Education Administration. (U.S. Dept. of Agriculture, Science and Education Administration, National Program Staff, 1978)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1994)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1996)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1998)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2006)

Damage assessment and insect disease incidence on private forest land in northern Idaho - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1989)

Delectus seminum ex horto Cantabrigiensis Academiae ad mutuam commutationem propositorum - Cambridge Botanic Garden. (Typis academicis, 1901)

Delectus seminum ex horto Cantabrigiensis Academiae ad mutuam commutationem propositorum - Cambridge Botanic Garden. (Typis academicis, 1903)

Delectus seminum ex horto Cantabrigiensis Academiae ad mutuam commutationem propositorum - Cambridge Botanic Garden. (Typis academicis, 1908)

Delectus seminum ex horto Cantabrigiensis Academiae ad mutuam commutationem propositorum - Cambridge Botanic Garden. (Typis academicis, 1913)

Desired future conditions for PinÌƒon-juniper ecosystems, August 8-12, 1994, Flagstaff, Arizona - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1995)

Deutsche botanische Monatsschrift : Organ für Floristen, Systematiker und alle Freunde der heimischen Flora (Verlag der Redaktion, 1900)

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

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)

A dictionary of the flowering plants and ferns - Willis, J. C. (John Christopher), 1868 -1958 (The University Press, 1919)

Dictionnaire étymologique de la flore francaise - Gentil, Ambroise, 1842 - (P. Lechevalier, 1923)

Dictionnaire universel d'histoire naturelle ... - Audouin, Jean Victor, 1797 -1841 (Au bureau principal des ©♭diteurs, 1841)

Dictionnaire universel d'histoire naturelle - Orbigny, Charles d', 1806 -1876 (A. Pilon et cie, 1867)

Dictionnaire universel d'histoire naturelle : résumant et complétant tous les faits présentés par les encyclopédies, les anciens dictionnaires scientifiques, les Oeuvres complètes de Buffon, et les meilleurs traités spéciaux sur les diverses branches des sciences nautrelles ; donnant la description des etres et des divers phénomènes de la nature, l'étymologie et la définition des noms scientifiques, et les principales applications des corps organiques et inorganiques à l'agriculture, à la médecine, aux arts industriels, etc - Martinet, L., (Chez les editeurs MM. Renard, Martinet et cie, rue et Hotel Mignon, 2 (quartier de l'École-de-Médecine) ; et chez Langlois et Leclercq, rue de la Harpe, 81 ; Victor Masson, Place de l'Ecole-de-Médecin, 1849)

Dictionnaire universel d'histoire naturelle : résumant et complétant tous les faits présentés par les encyclopédies, les anciens dictionnaires scientifiques, les Oeuvres complètes de Buffon, et les meilleurs traités spéciaux sur les diverses branches des sciences nautrelles ; donnant la description des etres et des divers phénomènes de la nature, l'étymologie et la définition des noms scientifiques, et les principales applications des corps organiques et inorganiques à l'agriculture, à la médecine, aux arts industriels, etc - Martinet, L., (Chez les editeurs MM. Renard, Martinet et cie, rue et Hotel Mignon, 2 (quartier de l'École-de-Médecine) ; et chez Langlois et Leclercq, rue de la Harpe, 81 ; Victor Masson, Place de l'Ecole-de-Médecin, 1845)

Dictionnaire universel d'histoire naturelle : résumant et complétant tous les faits présentés par les encyclopédies, les anciens dictionnaires scientifiques, les Oeuvres complètes de Buffon, et les meilleurs traités spéciaux sur les diverses branches des sciences nautrelles ; donnant la description des etres et des divers phénomènes de la nature, l'étymologie et la définition des noms scientifiques, et les principales applications des corps organiques et inorganiques à l'agriculture, à la médecine, aux arts industriels, etc - Martinet, L., (Chez les editeurs MM. Renard, Martinet et cie, rue et Hotel Mignon, 2 (quartier de l'École-de-Médecine) ; et chez Langlois et Leclercq, rue de la Harpe, 81 ; Victor Masson, Place de l'Ecole-de-Médecin, 1847)

Dictionnaire universel d'histoire naturelle résumant et complétant tous les faits présentés par les encyclopédies,... - Orbigny, Charles d', 1806 -1876 (L. Houssiaux et Cie, 1861)

A directory of Illinois systematists and ecologists - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1986)

A directory of Illinois systematists, ecologists, and field biologists - Robertson, Kenneth Ray, 1941 - ([Section of Botany and Plant Pathology, Illinois Natural History Survey], 1989)

Diseases of widely planted forest trees - International Union of Forestry Research Organizations. Working Group on International Cooperation in Forest Disease Research. Section 24: Forest Protection. (U.S. Dept. of Agriculture, Forest Service, 1964)

The distribution of vegetation in the United States, as related to climatic conditions - Livingston, Burton E. (Burton Edward), 1875 -1948 (Carnegie institution of Washington, 1921)

The distribution of vegetation in the United States, as related to climatic conditions - Shreve, Forrest, 1878 -1950 (Carnegie institution of Washington, 1921)

Disturbance and forest health in Oregon and Washington - Brookes, Martha H. (USDA Forest Service, Pacific Northwest Research Station, 1996)

Dizionario di botanica generale, istologia, anatomia, morfologia, fisiologia, biologia vegetale - Bilancioni, Guglielmo, 1881 -1935 (U. Hoepli, 1903)

Draft supplement to the environmental impact statement for an amendment to the Pacific Northwest regional guide - United States. Forest Service. Pacific Northwest Region. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1986)

Dwarf mistletoe infection in ponderosa pine - United States. Forest Service. Southwestern Region. (The Region?, 1990)

Dwarf mistletoe-related mortality of Ponderosa and Jeffrey pines at five campgrounds in California and Nevada - United States. Forest Pest Management. (USDA, Forest Service, Pacific Southwest Region, State and Private Forestry, Forest Pest Management, 1981)

Dwarf mistletoes of ponderosa pine - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 2003)

Dwarfmistletoe control in California : an outline of basic principles (USDA, Forest Service, Region 5, 1900)

Dwarfmistletoe of ponderosa pine in the southwest - United States. Forest Service. (Rocky Mountain Forest and Range Experiment Station, 1954)

An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) - U.S. Fish; Wildlife Service (Department of the Interior, U.S. Fish and Wildlife Service, Northeast Region, 1980)

Ecology and conservation of the marbled murrelet - Pacific Southwest Forest; Range Experiment Station (Berkeley, Calif.) (U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1995)

Ecology and management of larix forests : a look ahead : proceedings of an international symposium, Whitefish, Montana, U.S.A. October 5-9, 1992 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1995)

Effects of Arceuthobium americanum on twig growth of Pinus contorta - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1986)

Elementos de botánica : Arreglados para la enseñanza agrícola, forestal, secundaria y normal de México. una introducción en la flora de la República - Reiche, Karl Friedrich, 1860 -1929 (SEP, 1927)

The elements of botany for beginners and for schools - Gray, Asa, 1810 -1888 (American book company, 1901)

Enchiridion botanicum, exhibens classes et ordines plantarum accedit nomenclator generum et officinalium vel usualium indicatio - Endlicher, Stephan, 1804 -1849 (Sumptibus G. Engelmann, 1841)

Encyclopédie d'histoire naturelle; ou, traité complet de cette science d'après les travaux des naturalistes les plus éminents de tous les pays et de toutes les époques: Buffon, Daubenton, Lacépède, G. Cuvier, F. Cuvier, Geoffroy Saint-Hilaire, Latreille, De Jussieu, Brongniart, etc - Chenu, Jean-Charles, 1808 -1879 (Maresq, 1868)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia - American Entomological Society. ([Entomological Rooms of the Academy of Natural Sciences], 1904)

Enumeration of the species of plants collected by Dr. C.C. Parry and Messrs. Elihu Hall and J.P. Harbour during the summer and autumn of 1862 on and near the Rocky Mountains in Colorado Territory, lat. 39 - 41 - Gray, Asa, 1810 -1888 (1863)

Essays in geobotany in honor of William Albert Setchell - Goodspeed, T. H. (Thomas Harper), 1887 -1966 (University of California Press, 1936)

Evaluation of diseases in the Basket and Tamarack II timber sale areas, Pineridge Ranger District, Sierra National Forest - United States. Forest Pest Management. (South Sierra Shared Service Area, USDA Forest Service, Stanislaus National Forest, 1993)

Evaluation of forest pest conditions on Los Coyotes Indian Reservation, San Diego County, CA - Allison, James R. (U.S. Dept. of Agriculture, Forest Service, San Bernardino National Forest, 1998)

Evaluation of forest pest conditions on the Pauma Indian Reservation, San Diego County, CA - Allison, James R. (U.S. Dept. of Agriculture, Forest Service, San Bernardino National Forest, 1998)

Evaluation of insect and disease conditions in the Secret Harbor, Slaughterhouse Canyon and Skunk Harbor areas on the east shore of Lake Tahoe - United States. Forest Pest Management. (South Sierra Shared Service Area, USDA Forest Service, Stanislaus National Forest, 1993)

An evaluation of tree mortality in four Cedar Grove campgrounds, Kings Canyon National Park - United States. Forest Pest Management. (USDA, Forest Service, Pacific Southwest Region, State and Private Forestry, Forest Pest Management, 1983)

Excursionsflora für Oesterreich, mit Ausschluss von Galizien, Bukowina und Dalmatien. Mit theilseiser Benützung des "Botanischen Excursionsbuches" von G. Lorinser - Fritsch, Karl, 1864 -1934 (C. Gerold's Sohn, 1897)

Exkursionsflora für Österreich, mit Ausschlus von Galizien, Bukowina und Dalmatien - Fritsch, Karl, 1864 -1934 (Karl Gerolds Sohn, 1909)

Exkursionsflora von Europa : Anleitung zum Bestimmen der Gattungen der europäischen Blütenpflanzen - Thonner, Franz, 1863 - (R. Friedländer, 1901)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1920)

The ferns, fern allies and flowering plants of Rhode Island - Providence Franklin Society. (Providence Franklin Society, 1920)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1890)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1908)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1909)

Field guide to the common diseases and insect pests of Oregon and Washington conifers - United States. Forest Service. (USDA Forest Service, Pacific Northwest Region, 2006)

Field key to the flora of Yellowstone National Park - United States. National Park Service. (Yellowstone Library and Museum Association in cooperation with National Park Service, U.S. Dept. of the Interior, 1975)

Field notes, Death Valley Expedition, 1891 - Coville, Frederick V. (Frederick Vernon) 1867 -1937 (1891)

Fieldiana. Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1946)

Fieldiana. Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1977)

Final environmental impact statement on management for the northern spotted owl in the national forests : states of Washington, Oregon and California - United States. Forest Service. (USDA-Forest Service, 1992)

Final supplemental environmental impact statement on management of habitat for late-successional and old-growth forest related species within the range of the northern spotted owl - United States. Bureau of Land Management. ([Interagency SEIS Team], 1994)

First report on the flora of Wyoming - Nelson, Aven, 1859 -1952 (Wyoming Experiment Station, 1896)

Flora atlantica - Wood, Alphonso, 1810 -1881 (A. S. Barnes & company, 1879)

Flora boreali-Americana, or, The botany of the northern parts of British America compiled principally from the plants collected by Dr. Richardson & Mr. Drummond on the late northern expeditions, under command of Captain Sir John Franklin, R.N. to which are added (by permission of the Horticultural Society of London) those of Mr. Douglas from north west America and other naturalists - Hooker, William Jackson, Sir, 1785 -1865 (H.G. Bohn, 1840)

Flora boreali-americana, or, the botany of the northern parts of British America : compiled principally from the plants collected by Dr. Richardson & Mr. Drummond on the late northern expeditions, under command of Captain Sir John Franklin, R.N. To which are added (by permission of the Horticultural society of London,) those of Mr. Douglas, from north-west America, and of other naturalists - Hooker, William Jackson, Sir, 1785 -1865 (1840)

Flora Brasiliensis, enumeratio plantarum in Brasilia hactenus detectarum :quas suis aliorumque botanicorum studiis descriptas et methodo naturali digestas partim icone illustratas - Martius, Karl Friedrich Philipp von, 1794 -1868 (R. Oldenbourg, 1866)

Flora Bulgarica : descriptio et enumeratio systematica plantarum vascularium in Principatu Bulgariae sponte nascentium. Supplementum I - Velenovský, J. (Josef), 1858 -1949 (F. Rivnác, 1898)

Flora Croatica : exhibens stirpes phanerogamas et vasculares cryptogamas quae in Croatia, Slavonia et Dalmatia sponte crescunt nec non illas quae frequentissime coluntur - Vukotinović, Ljudevit Farkaš, 1813 -1893 (Apud F. Zupan, 1869)

A flora de Portugal (plantas vasculares) : disposta em chaves dichotomicas - Coutinho, Antonio Xavier Pereira, 1851 -1939 (Aillaud, Alves, 1913)

Flora del bajío y de regiones adyacentes - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2011)

Flora del Valle de Tehuacán-Cuicatlán (Universidad Nacional Autónoma de México, 2010)

Die Flora des Bernsteins und ihre Beziehungen zur Flora der Tertiärformation und der Gegenwart von H.R. Goeppert und A. Menge. Nach deren Hinscheiden selbstständig bearb. und fortgesetzt von H. Conwentz. Mit Unterstützung des Westpreussischen Provinzial-Landtages; hrsg. von der Naturforschenden Gesellschaft in Danzig - Conwentz, Hugo, 1855 -1922 (Commissions-Verlag von W. Engelmann, 1883)

Flora excursoria en el Valle Central de México : claves analíticas y descripciones de las familias y géneros fanerogámicos - Reiche, Karl Friedrich, 1860 -1929 (s.n, 1928)

Flora excursoria en el valle central de mexico Claves analiticas y descripciones de las familias y generos fanerogamicos - Reiche, Karl Friedrich, 1860 -1929 (Talleres Gráficos de la Nación, 1926)

Flora Franciscana. An attempt to classify and describe the vascular plants of middle California - Greene, Edward Lee, 1843 -1915 (Cubery & Co., Printers, 1892)

Flora Malesiana. Series I, Spermatophyta - Kebun Raya Indonesia. (Noordhoff-Kolff, 1997)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1859)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1920)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1919)