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Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1915)

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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)

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Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1973)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cora Lee Young Nursery fall and spring - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cora Lee Young Nursery, 1930)

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

Correspondence : Parry (Charles Christopher) and Engelmann (George), 1851-1884 - Engelmann, George, 1809 -1884 (1863)

Correspondence : Parry (Charles Christopher) and Engelmann (George), 1851-1884 - Engelmann, George, 1809 -1884 (1866)

Correspondence : Purkyně (Emanuel) and Engelmann (George), 1875-1881 - Purkyně, Emanuel, 1831 -1882 (1875)

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Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2011)

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The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1923)

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Curtis's botanical magazine - Hooker, Joseph Dalton, 1817 -1911 (Academic Press [etc.], 1848)

Curtis's botanical magazine - Hooker, Joseph Dalton, 1817 -1911 (Academic Press [etc.], 1912)

Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1909)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Doubleday, Page & Company, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1900)

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The Death valley expedition. A biological survey of parts of California, Nevada, Arizona, and Utah. Part II - Stejneger, Leonhard, 1851 -1943 (Govt. print. off, 1893)

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Denkschrift über eine Reise nach Nord-Mexiko, verbunden mit der Expedition des Obersten Donniphan, in den Jahren 1846 und 1847 - Engelmann, George, 1809 -1884 (Druck und Verlag von Friedrich Vieweg und Sohn, 1850)

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Department bulletin - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1924)

Department bulletin - United States. Department of Agriculture. (Supt. of Docs., G.P.O, 1913)

Descriptions and prices of one hundred select hardy perennial plants of the Rocky Mountains - Andrews, D. M. (Firm) (D.M. Andrews, 1899)

Descriptive catalogue for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Forestry Company, 1921)

Descriptive catalogue for the nursery trade of forest and ornamental tree seed seeds of shrubs, conifers, palms and evergreens rare seed unusual, exotic and newly introduced trees, shrubs and evergreens from all parts of the Earth : season of 1928-29 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Ellis, 1928)

Descriptive catalogue for the nursery trade of forest and ornamental tree seed seeds of shrubs, conifers, palms and evergreens rare seed unusual, exotic and newly introduced trees, shrubs and evergreens from all parts of the Earth : season of 1929-30 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Ellis, 1929)

Descriptive catalogue of hardy ornamental trees, flowering shrubs and vines : including rhododendrons, roses, magnolias, Chinese and Ghent azaleas, camellias, Japanese maples and other rare and choice plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Parsons & Sons Co, 1890)

Descriptive catalogue of hardy ornamental trees, flowering shrubs and vines : including rhododendrons, roses, magnolias, Chinese and Ghent azaleas, camellias, Japanese maples and other rare and choice plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Parsons & Sons Co, 1903)

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)

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A digitized systematic classification for ecosystems : with an illustrated summary of the natural vegetation of North America - Lowe, Charles H. (Forest Service, Rocky Mountain Forest and Range Experiment Station, 1980)

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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 important forest trees of the United States - Munns, E. N. (Edward Norfolk), 1889 -1972 (U.S. Dept. of Agriculture, 1938)

Distribution of vascular plant species of special concern and limited distribution in the Pryor Mountain Desert ; Carbon County, Montana - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1992)

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)

A distributional list of the birds of Montana, with notes on the migration and nesting of the better known species - Saunders, Aretas A. (Aretas Andrews), 1884 -1970 (The Club, 1921)

Distributions of eagles and a survey for and habitat characteristics of communal roosts of bald eagles (Haliaeetus leucocephalus) wintering in northeastern Wyoming - United States. Bureau of Land Management. (Wyoming Cooperative Fishery and Wildlife Research Unit, 1985)

Documentation of the modeling of potential vegetation at three spatial scales using biophysical settings in the Columbia River Basin assessment area - United States. Bureau of Land Management. ([University of Washington], 1995)

The douglas-fir/white spirea habitat type in central Idaho : succession and management - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1994)

Draft environmental assessment, forest fire management, Glacier National Park - United States. National Park Service. (The Service, 1977)

Draft environmental impact statement, Custer National Forest : noxious weed treatment program : Montana ... - United States. Forest Service. (The Service, 1986)

Draft vegetation treatments using aminopyralid, fluroxypyr, and rimsulfuron on Bureau of Land Management lands in 17 western states programmatic environmental impact statement - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, 2015)

East Front grizzly studies - Aune, Keith, 1954 - (Montana Dept. of Fish, Wildlife & Parks, 1987)

The ecological characteristics and historical distribution of the family Cervidae in Alberta - Dwyner, Mary V. (1969)

Ecological land classification and vegetation description of Upper Bob Creek Ecological Reserve - Cornish, Beth. (Alberta Environmental Protection, Resource Data Division, 1997)

Ecological land classification of Beauvais Lake Provincial Park study area - Alberta. Alberta Environment. (Alberta Environment, 2001)

The ecological relations of roots - Weaver, John E. (John Ernest),‏ ‎ 1884 -1966 (Carnegie institution of Washington, 1919)

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An ecological study of the Douglas fir vegetation in Banff and Jasper National Parks - Stringer, Paul William. (1966)

Ecological types of the upper Gunnison Basin : review draft - Johnston, Barry C. (U.S. Department of Agriculture, Forest Service, Grand Mesa-Uncompahgre-Gunnison National Forests, 1997)

Ecologically significant wetlands in the Missouri headwaters : Jefferson, lower Madison, lower Gallatin, and upper Red Rock River watersheds - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2004)

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)

Ecology of Shiras moose in Montana : big game research projects W-98-R and W-120-R, January 4, 1965-December 31, 1973 : final report - Montana. Department of Fish; Game (The Department, 1974)

Ecology of the Columbian ground squirrel in the Sheep River region - University of Alberta. Department of Zoology. (1962)

The efficacy and economic effects of plant quarantines in California : report of a committee - University of California (1868-1952). College of Agriculture. (Agricultural Experiment Station, 1933)

Eighty years of vegetation and landscape changes in the Northern Great Plains : a photographic record - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agriculture Research Service, 2001)