Mountain, plain and garden : the magazine of Denver Botanic Gardens - Denver Botanic Gardens. (The Gardens, 1990)

The Mountaineer (The Mountaineers, 1907)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1900)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1905)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1907)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1909)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1911)

Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1913)

Multiresource management of ponderosa pine forests : Nov. 14-16, 1989, Flagstaff, Arizona - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

Museum bulletin - Geological Survey of Canada. Museum. (Government Printing Bureau, 1917)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1912)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1916)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1918)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1919)

Mycologisches Centralblatt = Mycological review = Revue mycologique = Revista micologica : Zeitschrift für allgemeine und angewandte Mycologie : Organ für wissenschaftliche Forschung auf den Gebieten der allgemeinen Mycologie, Gärungschemie und technischen Mycologie - Wehmer, C. (Carl), 1858 -1935 (G. Fischer, 1913)

Mycotaxon (Mycotaxon, 2014)

The National geographic magazine - National Geographic Society (U.S.) (National Geographic Society, 1917)

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

National list of scientific plant names - United States. Soil Conservation Service. (Nebr.], 1971)

Native plants of the National Park Region - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank H. Rose, 1949)

Native woody plants of the United States : their erosion-control and wildlife values - Mulford, Furman Lloyd, 1869 - (U.S. Dept. of Agriculture, 1938)

Natural history - American Museum of Natural History (American Museum of Natural History, 1919)

Natural history manual of the T. C. U. vicinity / prepared by Hortense Winton, W. M. Winton and Gayle Scott - Winton, W. M. (Texas Christian University, 1924)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1843)

Natural history of New York (D. Appleton, 1842)

Natural history of the Queen Charlotte islands, British Columbia. Natural history of the Cook inlet region, Alaska - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1901)

The natural history of Washington territory and Oregon : with much relating to Minnesota, Nebraska, Kansas, Utah, and California between the thirty-sixth and forty-ninth parallels of latitude : being those parts of the final reports on the survey of the Northern Pacific Railroad route, relating to the natural history of the regions explored : with full catalogues and descriptions of the plants and animals collected from 1853 to 1860 - Cooper, J. G. (James Graham), 1830 -1902 (Bailliáere Brothers ... [and 3 others], 1860)

The natural history of Washington territory, with much relating to Minnesota, Nebraska, Kansas, Oregon, and California, between the thirty-sixth and forty-ninth parallels of latitude, being those parts of the final reports on the survey of the Northern Pacific railroad route, containing the climate and physical geography, with full catalogues and descriptions of the plants and animals collected from 1853 to 1857 - Gray, Asa, 1810 -1888 (Baillière brothers, 1859)

The natural history review - Belfast Natural History; Philosophical Society. (Hodges & Smith, 1862)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1869)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1871)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1874)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1880)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1885)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1887)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1891)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1898)

A naturalist in the Great Lakes region - Downing, Elliot Rowland, 1868 -1944 (The University of Chicago Press, 1922)

A naturalist in the Great Lakes region - Downing, Elliot Rowland, 1868 -1944 (University of Chicago Press, 1922)

Naturalist's guide to the Americas - Ecological Society of America. Committee on the Preservation of Natural Conditions. (Williams & Wilkins, 1926)

Le Naturaliste : journal des échanges et des nouvelles - Deyrolle, Émile, 1838 -1917 (Bureaux à Paris, 2010)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1906)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1909)

Nature and development of plants - Curtis, Carlton C. (Carlton Clarence), 1864 -1945 (H. Holt, 1917)

Nature and development of plants - Curtis, Carlton C. (Carlton Clarence), 1864 -1945 (H. Holt, 1915)

Nature and development of plants - Curtis, Carlton C. (Carlton Clarence), 1864 -1945 (H. Holt, 1916)

Nature and development of plants - Curtis, Carlton C. (Carlton Clarence), 1864 -1945 (H. Holt, 1918)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors... - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Grosset & Dunlap, 1900)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1900)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1900)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1901)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Co, 1922)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Company, 1905)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, 1920)

Nature's garden : With many color illustrations - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Garden City Pub. Co, 1900)

Nature study - Manchester Institute of Arts; Sciences. ([Nature Study Press], 1901)

The nature-study review - American Nature Study Society. (Comstock Pub. Co, 1905)

The Nature-study review : devoted to all phases of nature-study in elementary schools - American Nature Study Society. ([M.A. Bigelow], 1917)

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

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1886)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1914)

Neues allgemeines Garten-Magazin - Bernhardi, Johann Jacob, 1774 -1850 (Im Verlage der Grossherzogl. Sachs. priv. Landes-Industrie-Comptoirs, 1826)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1868)

Nevada rangeland phenology - United States. Bureau of Land Management. (NRC, Inc, 1978)

The new American botanist and florist - Wood, Alphonso, 1810 -1881 (A. S. Barnes & co, 1889)

New manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada, rearr. and extensively rev. by Benjamin Lincoln Robinson and Merritt Lyndon Fernald - Robinson, Benjamin Lincoln, 1864 -1935 (American Book Co, 1908)

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 company, 1909)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 1995)

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)

New tracks in North America :a journal of travel and adventure whilst engaged in the survey for a southern railroad to the Pacific ocean during 1867/8 - Bell, William Abraham (Chapman and Hall, 1869)

New York State : state floras - Gray, Asa, 1810 -1888 (various publishers, 1814)

Newsletter - Colorado Native Plant Society. (The Society, 1977)

Newsletter - Colorado Native Plant Society. (The Society, 1980)

Newsletter - Colorado Native Plant Society. (The Society, 1981)

Nomenclator botanicus hortensis : oder, alphabetische und synonymische aufzählung der in den gärten Europa's cultivirten gewächse, nebst angabe ihres autors, ihres vaterlandes, ihrer dauer und cultur - Heynhold, Gustav, 1800 -approximately 1860 (Arnoldischen Buchhandlung, 1840)

Nomenclator botanicus hortensis : oder, alphabetische und synonymische aufzählung der in den gärten Europa's cultivirten gewächse, nebst angabe ihres autors, ihres vaterlandes, ihrer dauer und cultur - Heynhold, Gustav, 1800 -approximately 1860 (Arnoldischen Buchhandlung, 1846)

Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischeri, 1873)