Laboratory outlines in plant pathology - Hesler, L. R. 1888 -1977 (The authors, 1916)

Laminated root rot of Douglas-fir - United States. Forest Service. (Dept. of Agriculture, Forest Service, 1960)

Laminated root rot of Douglas-fir in western Oregon and Washington - Childs, T. W. (Thomas White), 1908 - (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1970)

The Lancaster, farmer, a monthly journal - Harris, Alexander, 1827 - (Wylie & Griest [etc, 1869)

Large scale spatial patterns of conifer diseases in the Bighorn Mountains, Wyoming - United States. Forest Service. (USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1993)

Lasca leaves - Southern California Horticultural Institute. (California Arboretum Foundation, 1963)

Lasca leaves - Southern California Horticultural Institute. (California Arboretum Foundation, 1971)

Lasca leaves - Southern California Horticultural Institute. (California Arboretum Foundation, 1973)

Lasca leaves - Southern California Horticultural Institute. (California Arboretum Foundation, 1974)

Lasca leaves - Southern California Horticultural Institute. (California Arboretum Foundation, 1975)

LASCA miscellanea - Los Angeles State; County Arboretum. (Los Angeles State and County Arboretum ; Prepared for distribution by California Arboretum Foundation, Inc, 1958)

Latrobe Valley naturalist (Latrobe Valley Field Naturalists' Club, 1979)

Lehrbuch der Botanik für Hochschulen - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1911)

Lehrbuch der Botanik; für höhere Lehranstalten und die Hand des Lehrers, sowie für alle Freunde der Natur. Unter besonderer Berücksichtigung biologischer Verhältnisse bearb. von Otto Schmeil - Schmeil, O. (Otto), 1860 -1943 (Quelle & Meyer, 1911)

Lehrbuch der ökologischen Pflanzengeographie - Warming, Eugenius, 1841 -1924 (Gebrüder Borntraeger, 1918)

Lehrbuch der ökologischen pflanzengeographie - Warming, Eugenius, 1841 -1924 (Gebrüder Borntraeger, 1902)

Lehrbuch der pilzparasitären Pflanzenkrankheiten mit besonderer Berücksichtigung der Krankheiten gärtnerischer Kulturgewächse - Höstermann, Gustav (P. Parey, 1923)

The life of the fly; with which are interspersed some chapters of autobiography - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead and Company, 1919)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2009)

List of the water-color drawings of Fungi by George E. Morris in the Peabody museum of Salem - Morse, Albert P. (Albert Pitts), 1863 -1936 (Peabody museum, 1918)

London atalanta - London Natural History Society. Ecology; Entomology Section. (1992)

London Naturalist - London Natural History Society. (London Natural History Society, 1946)

London Naturalist - London Natural History Society. (London Natural History Society, 1947)

London Naturalist - London Natural History Society. (London Natural History Society, 1948)

London Naturalist - London Natural History Society. (London Natural History Society, 1974)

London Naturalist - London Natural History Society. (London Natural History Society, 1984)

London Naturalist - London Natural History Society. (London Natural History Society, 1992)

London Naturalist - London Natural History Society. (London Natural History Society, 1994)

London Naturalist - London Natural History Society. (London Natural History Society, 1997)

London Naturalist - London Natural History Society. (London Natural History Society, 1999)

London Naturalist - London Natural History Society. (London Natural History Society, 2001)

London Naturalist - London Natural History Society. (London Natural History Society, 2004)

London Naturalist - London Natural History Society. (London Natural History Society, 2005)

London Naturalist - London Natural History Society. (London Natural History Society, 2006)

Long Island Botanical Society newsletter - Long Island Botanical Society. (Long Island Botanical Society, 1998)

Losses from decay in 40- to 120- year old Oregon and Washington western hemlock stands - Goheen, D. J. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1980)

The luminescence of biological systems; proceedings of the conference on luminescence, March 28-April 2, 1954, sponsored by the Committee on Photobiology of the National Academy of Sciences-National Research Council and supported by the National Science Foundation - National Research Council (U.S.). Committee on Photobiology. (American Association for the Advancement of Science, 1955)

Luther Burbank's plant contributions - Howard, W. L. (Walter Lafayette), 1872 - (Agricultural Experiment Station, 1945)

Macrofungi of La Butte Creek, Fidler-Greywillow and Colin-Cornwall Wildland Provincial Parks - Alberta. Parks; Protected Areas Division. (Alberta Community Development, Parks and Protected Areas Division, 2003)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1976)

Magyar botanikai lapok = Ungarische botanische Blätter - Degen, Árpád von, 1866 -1934 (Müller Karoly Könyvnyomdaja aja, 1915)

Les maladies cryptogamiques des plantes cultive´es - Marchal, Emile, 1871 -1954 (A. Castaigne, 1896)

Maladies des plantes agricoles et des arbres fruitiers et forestiers causées par des parasites végétaux - Prillieux, Édouard-Ernest, 1829 -1915 (Didot, 1895)

Maladies des plantes cultivées - Delacroix, Georges, 1858 -1907 (J.-B. Baillière et fils, 1908)

Maladies des plantes cultivées - Delacroix, Georges, 1858 -1907 (J.-B. Baillière et fils, 1909)

... Les maladies parasitaires des plantes (infestation–infection) - Magrou, Joseph Émile, 1883 -1951 (Masson et cie, 1922)

Malpighia :rassegna mensuale di botanica - Penzig, O. (Ottone), 1856 -1929 (g. Capra & co, 1894)

Malpighia :rassegna mensuale di botanica - Penzig, O. (Ottone), 1856 -1929 (g. Capra & co, 1899)

Malpighia :rassegna mensuale di botanica - Penzig, O. (Ottone), 1856 -1929 (g. Capra & co, 1900)

Malpighia :rassegna mensuale di botanica - Penzig, O. (Ottone), 1856 -1929 (g. Capra & co, 1906)

Mammals of Eastern Europe and Northern Asia - Ognev, S. I. (Sergei Ivanovich), 1886 -1951 (Pub. for the Smithsonian Institution and the National Science Foundation, Washington, D.C., by the Israel Program for Scientific Translations, 1966)

Management of ponderosa pine in the Southwest as developed by research and experimental practice - Pearson, G. A. (Gustaf Adolph), 1880 - (U.S. Dept. of Agriculture, Forest Service, 1950)

A manual of botany for Indian forest students - Hole, R. S. (Superintendent Government Printing, India, 1909)

A manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1907)

A manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1908)

Manual of fruit diseases - Hesler, L. R. 1888 -1977 (Macmillan, 1917)

Manual of plant diseases - Lindau, Gustav, 1866 -1923 (The Record press, 1914)

Manual of plant diseases - Lindau, Gustav, 1866 -1923 (The Record Press, 1914)

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, 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)

Manual of tree diseases - Rankin, William Howard, 1888 - (The Macmillan Company, 1918)

Mass wasting in coastal Alaska - Swanston, Douglas N. (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Institute of Northern Forestry, 1969)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1902)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1879)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica (Societas, 1876)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1909)

Meddelelser fra den Botaniske forening i Kjøbenhavn = Bulletins de la Société botanique de Copenhague - Kiaerskou, Hjalmar, 1835 -1900 (H. Hagerup, 1882)

Meddelelser fra den Botaniske forening i Kjøbenhavn = Bulletins de la Société botanique de Copenhague - Kiaerskou, Hjalmar, 1835 -1900 (H. Hagerup, 1887)

Mededeelingen van de Ned. Mycologische Vereeniging - Nederlandse Mycologische Vereniging. (Der Vereeniging, 1910)

Mededeelingen van het Laboratorium voor Plantenziekten - Laboratorium voor Plantenziekten. (Drukkerij van het Departement, 1914)

Medical mycology; fungous diseases of men and other mammals - Dodge, Carroll W. (Carroll William), 1895 -1988 (The C.V. Mosby company, 1935)

Mémoires couronnés et autres mémoires publiés par l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (F. Hayez, 1895)

Mémoires de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1919)

Mémoires de la Société des sciences naturelles de Saône-et-Loire - Société des sciences naturelles de Saône-et-Loire. (Société des sciences naturelles de Saône-et-Loire, 1884)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1918)