Report on the conservation status of Cirsium longistylum, a candidate threatened species - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Report on the conservation status of Howellia aquatilis, a candidate threatened species - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Report on the conservation status of Trisetum orthochaetum, a candidate endangered species - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1986)

Report on the forests of North America, exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Govt. Print. Off, 1884)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Govt. print. off, 1884)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (G.P.O, 1884)

Research accomplishments - United States. Forest Service. (1971)

Research natural areas in Colorado, Wyoming, Nebraska, North Dakota, South Dakota, and parts of Wyoming - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994)

Response of breeding birds to commercial clearcutting of aspen in southwestern Colorado - Crouch, Glenn LeRoy, 1929 - (1987)

Response of elk to Exxon's field development in the Riley Ridge area of western Wyoming, 1979-1990 - Wyoming. Game; Fish Dept. (Hayden-Wing Associates, 1990)

Results of a biological reconnoissance of the Yukon river region. : General account of the region. Annotated list of mammals - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1900)

Results of a biological survey of Mount Shasta, California - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Govt Print. Off, 1899)

Results of a biological reconnoisance of the Yukon river region. General account of the region. Annotated list of mammals - Osgood, Wilfred Hudson, 1875 -1947 (Govt. Print. Off, 1900)

Results of boreal owl (Aegolius funereus) surveys on the Jefferson Division of the Lewis & Clark National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Results of field surveys for Allotropa virgata in the Beaverhead and Deerlodge National Forests - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Results of regeneration cutting in a spruce-subalpine fir stand - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1965)

Review and comparison of site evaluation methods - Jones, John R. (John Robert), 1926 - (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1916)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1918)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1919)

Revision of Phoenicocoris Reuter with descriptions of three new species from North America and a new genus from Japan (Heteroptera, Miridae, Phylinae) - Schwartz, Michael D. (American Museum of Natural History, 2004)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1964)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1976)

Revue des sciences naturelles appliquées - Société nationale d'acclimatation de France (La Société, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1858)

Revue horticole (Librairie agricole de la maison rustique, 1867)

Revue horticole (Librairie agricole de la maison rustique, 1869)

Revue horticole (Librairie agricole de la maison rustique, 1874)

Revue horticole (Librairie agricole de la maison rustique, 1875)

Revue horticole (Librairie agricole de la maison rustique, 1881)

Revue horticole (Librairie agricole de la maison rustique, 1883)

Revue horticole (Librairie agricole de la maison rustique, 1884)

Revue horticole (Librairie agricole de la maison rustique, 1885)

Revue horticole (Librairie agricole de la maison rustique, 1886)

Revue horticole (Librairie agricole de la maison rustique, 1890)

Revue horticole (Librairie agricole de la maison rustique, 1892)

Revue horticole (Librairie agricole de la maison rustique, 1897)

Revue horticole (Librairie agricole de la maison rustique, 1900)

Revue horticole (Librairie agricole de la maison rustique, 1901)

Revue horticole (Librairie agricole de la maison rustique, 1902)

Revue horticole (Librairie agricole de la maison rustique, 1906)

Revue horticole (Librairie agricole de la maison rustique, 1909)

Revue horticole (Librairie agricole de la maison rustique, 1922)

Rhododendrons, 1949 : shrubs, trees, other plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl S. English, Jr, 1949)

Rhododendrons, roses, clematis, azaleas, bulbs, hardy plants, bay trees, evergreens : palms, araucarias, ferns, vines, orchids, flowering shrubs, ornamental grasses and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1901)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1935)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1963)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1970)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1972)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1974)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1991)

Riley Ridge natural gas project : soils/vegetation/reclamation technical report - United States. Bureau of Land Management. (Environmental Research and Technology, Inc, 1983)

Rio Grande National Forest, Colorado - United States. Department of Agriculture. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Region, 1937)

Riparian and wetland plant associations of southwestern Idaho : with a focus on the Bureau of Land Management's Lower Snake River District - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, National Science and Technology Center, Information and Communications Group, 2001)

Riparian zone associations : Deschutes, Ochoco, Fremont, and Winema National Forests - United States. Forest Service. Pacific Northwest Region. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1987)

Rivista di patologia vegetale - Istituto di patologia vegetale (Università di Milano) (Tipografia del Seminario, 1912)

RMYLD : computation of yield tables for even-aged and two-storied stands - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1978)

Rocky Mountain flowers : an illustrated guide for plant-lovers and plant-users - Clements, Frederic E. (Frederic Edward), 1874 -1945 (H. W. Wilson, 1920)

Rocky mountain flowers; an illustrated guide for plantlovers and plant-users - Clements, Frederic E. (Frederic Edward), 1874 -1945 (the H.W. Wilson company, 1914)

Rocky Mountain front grizzly bear monitoring and investigation - U.S. Fish; Wildlife Service (s.n, 1985)

Rocky Mountain front grizzly bear monitoring and investigation - Aune, Keith, 1954 - (Montana Dept. of Fish, Wildlife and Parks, 1982)

Rocky Mountain mine timbers - Betts, Norman De Witt, 1880 -1917 (U.S. Dept. of Agriculture, 1914)

The romance of our trees - Wilson, Ernest Henry, 1876 -1930 (Doubleday, Page, 1920)

Root disease-caused losses in the commercial coniferous forests of the western United States - United States. Forest Pest Management. Methods Application Group. (U.S. Dept. of Agriculture, Forest Service, Forest Pest Management, Methods Application Group, 1984)

Routt national forest, Colorado. United States Department of agriculture, Forest service, Rocky mountain region, Denver, Colorado ... - United States. Forest Service. Rocky Mountain Region. (U. S. Govt. print. off, 1941)

Royal gardens - Ward, Cyril, 1863 -1935 (Longmans, Green, 1912)

Russula, Gomphidius, Lepiota and fungous flora of Mt. Hood and higher Rockies - Kauffman, C. H. (Calvin Henry), 1869 -1931 (1918)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 1992)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 1999)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2002)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2003)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2009)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2011)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2019)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2021)

Salmon-Challis National Forest noxious weed management program : final environmental impact statement - United States. Forest Service. (U.S. Forest Service, 2003)

Samuel C. Moon's descriptive catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Samuel C. Moon, 1889)

Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1947)

Schlich's manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1922)

Science - American Association for the Advancement of Science. ([s.n.], 1896)

Science - American Association for the Advancement of Science. ([s.n.], 1900)

Science - American Association for the Advancement of Science. ([s.n.], 1904)

Science - American Association for the Advancement of Science. ([s.n.], 1907)

Science - American Association for the Advancement of Science. ([s.n.], 1911)

Science studies, v.1, no. 1-3 - Montana Agricultural Experiment Station. (1905)

The Scientific basis for conserving forest carnivores : American marten, fisher, lynx, and wolverine in the western United States - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994)

The Scientific monthly - American Association for the Advancement of Science. (American Association for the Advancement of Science [etc.])

A screening procedure to evaluate air pollution effects in Region 1 wilderness areas, 1991 - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1997)

Seaside planting of trees and shrubs - Gaut, Alfred, 1845 -1928 (Pub. at the offices of "Country life," ltd. [etc.], 1907)

Seasonal height growth of upper-slope conifers - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1968)

Seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cox Seed and Plant Co, 1900)

Seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cox Seed and Plant Co, 1902)

Seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cox Seed and Plant Co, 1903)

Seed annual, 1901 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cox Seed and Plant Co, 1901)

Seed, tree & nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. R. Strong Company, 1892)

Seedfall and establishment of Engelmann spruce in clearcut openings : a case history - Alexander, Robert R. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969)

Seeds, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mische & Losier, 1931)

Seeds for nurseryman and forester, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Schumacher, 1932)

Seeds for nurserymen : November, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1941)

Seeds native to the Pacific Northwest - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl S. English, Jr, 1947)

Seeds of rare plants : Offer 23 C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : Offer no. 23 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : offer no. 25 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : offer no. 27B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27D - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

La Semaine horticole ([s.n.], 1898)

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Sensitive plant species inventory in the Centennial Valley, Beaverhead County, Montana - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1993)

Sensitive plant species surveys, Butte District, Beaverhead and Madison Counties, Montana - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1996)

Sensitive plant survey in the Sweetgrass Hills, Liberty and Toole Counties, Montana - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1994)

Sensitive plant survey in the Tobacco Root Mountains, Madison County, Montana, Beaverhead and Deerlodge National Forests - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Sensitive plant surveys, 1989 : U.S. Forest Service, Region 1, Gallatin National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1989)

Sensitive plant surveys in the Big Belt and Elkhorn Mountains, U.S.D.A. Forest Service, Region 1, Helena National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1993)

Sensitive plant surveys in the Bull River and adjacent drainages, U.S.D.A. Forest Service, Region 1, Kootenai National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1990)

Sensitive plant surveys in the Gallatin National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1994)

Sensitive plants of the Malheur, Ochoco, Umatilla, and the Wallowa-Whitman National Forests / by Paula J. Brooks ... [et. al.] - United States. Forest Service. Pacific Northwest Region. (USDA, Forest Service, Pacific Northwest Region, 1991)

Service bulletin - United States. Forest Service. (Forest Service, U.S. Dept. of Agriculture, 1917)

sheng wu duo yang xing yan jiu de yuan li yu fang fa - Zhongguo ke xue yuan. Sheng wu duo yang xing wei yuan hui (zhong guo ke xue ji shu chu ban she, 1994)

Shoshone National Forest, Wyoming - United States. Forest Service. (U.S. Govt. Print. Off, 1941)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1968)

Sierra Club bulletin - Sierra Club. (Sierra Club, 1907)

The silva of North America :a description of the trees which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin and company, 1897)