Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1928)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1940)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1972)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1982)

Cascade-Siskiyou National Monument : draft resource management plan/environmental impact statement - United States. Bureau of Land Management. Medford District. (U.S. Department of the Interior, Bureau of Land Management, Medford District Office, 2002)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1987)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1991)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1995)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1996)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1997)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1998)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2001)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2003)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2006)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2009)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2010)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2011)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2014)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2016)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2017)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2018)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2019)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2020)

A catalog and bibliography of the Buprestoidea of America north of Mexico - Nelson, Gayle H (Coleopterists Society, 2008)

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

Catalogue des oiseaux du Canada - Macoun, John, 1831 -1920 (Impr. du Gouvernement, 1909)

Catalogue des oiseaux du Canada - Geological Survey of Canada (Imprimerie du gouvernement, 1915)

Catalogue of Canadian birds - Geological Survey of Canada (Printed by S. E. Dawson, 1900)

Catalogue of Canadian birds - Geological Survey of Canada (Government printing bureau, 1909)

Catalogue of Canadian birds - Macoun, John, 1831 -1920 (Canada Dept. of Mines, Geological Survey Branch, 1909)

Catalogue of Canadian plants ... - Kindberg, N. C. (Nils Conrad), 1832 -1910 (1883)

Catalogue of mammals collected by E. Heller in Southern California - Elliot, Daniel Giraud, 1835 -1915 (1904)

A catalogue of Nevada flora - Anderson, Charles L. (Charles Lewis), 1827 -1910 (State Mineralogist, 1871)

A catalogue of North American Diptera (or two-winged flies) - Osten-Sacken, C. R. (Carl Robert), 1828 -1906 (Smithsonian Institution, 1905)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1918)

Catalogue of the flora of Montana and the Yellowstone National Park - Rydberg, Per Axel, 1860 -1931 (1900)

Catalogue of the trees and shrubs in the arboretum and botanic garden at the Central Experimental Farm, Ottawa, Ontario, Canada - Saunders, William, 1836 -1914 (Govt. Print. Bureau, 1899)

Catalogus dipterorum hucusque descriptorum - Kertész, Kálmán, 1867 -1922 (G. Engelmann, 1902)

Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (G. Engelmann, 1894)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

A century of botanical exploration in Montana, 1805-1905 : collectors, herbaria, and bibliography ; Supplement to the flora of Montana : additions, and corrections ; Common names of Montana plants - Henshall, Hester F. (Montana Agricultural College, 1905)

Cereal investigations at the Nephi substation - Cardon, P. V. (Philip Vincent), 1889 -1965 (U.S. Dept. of Agriculture, 1913)

The challenge of producing native plants for the intermountain area : proceedings, Intermountain Nurseryman's Association, 1983 conference, August 8-11, 1983, Las Vegas, Nevada - Intermountain Nurseryman's Association. Meeting. (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

Changes in perennial grass cover following conversion from yearlong to summer-deferred grazing in west central New Mexico - United States. Forest Service. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1964)

Changes in ponderosa pine forests of the Mt. Logan Wilderness - United States. Bureau of Land Management. (Northern Arizona University, College of Ecosystem Science and Management, 1998)

Chaparral : studies in the dwarf forests, or elfin-wood, of southern California - Plummer, Fred G. (Fred Gordon), 1864 -1913 (U.S. Dept. of Agriculture, Forest Service, 1911)

Characteristics and hybridization of important intermountain shrubs III Sunflower family - United States. Forest Service. (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1979)

Characteristics and hybridization of important intermountain shrubs 1 / Rose family - United States. Forest Service. (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975)

Characteristics and hybridization of important intermountain shrubs II / Chenopod family - Blauer, A. Clyde. (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1976)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1981)

Cheatgrass : the invader that won the west - United States. Forest Service. (U.S. Department of the Interior, Bureau of Land Management, Idaho State Office, 1996)

A check list of North American rust fungi (Uredinales) - Stevenson, John A. (John Albert), 1890 -1979 (Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1956)

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

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Chemical control of woody plants - Harvey, W. A. (William Alfred), 1914 -1989 (California Agricultural Experiment Station, 1965)

Chemical control of woody plants in California - Harvey, W. A. (William Alfred), 1914 -1989 (California Agricultural Experiment Station, 1956)

Chromatographic characteristics and phylogenetic relationships of "Artemisia", section "Tridentatae" - Hanks, David LaWayne, 1925 - (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973)

Circle west vegetation baseline study : final report - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1978)

Circle West vegetation monitoring study - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1982)

Circle west wildlife baseline study : final report - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1978)

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Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1965)

Clarice Nye Oregon wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mrs. Clarice Nye, 1940)

Clarice Nye Oregon wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mrs. Clarice Nye, 1942)

Clarice Nye Oregon wild flowers, rock plants and seeds, lilies, trees and shrubs, ferns, perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mrs. Clarice Nye, 1934)

Clarice Nye Oregon wild flowers, rock plants and seeds, lilies, trees and shrubs, ferns, perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mrs. Clarice Nye, 1938)

Classification and management of USDI Bureau of Land Management's riparian and wetland sites in eastern and southern Idaho - United States. Bureau of Land Management. Idaho State Office. (Bitterroot Restoration Incorporated, 2002)

A classification of forest habitat types of the southern Arizona and portions of the Colorado Plateau - DeVelice, Robert L. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1996)