Root development in the grassland formation, a correlation of the root systems of native vegetation and crop plants - Weaver, John E. (John Ernest),‏ ‎ 1884 -1966 (Carnegie inst. of Washington, 1920)

Rose special : 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Western Seed Co, 1956)

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The Salton Sea; a study of the geography, the geology, the floristics, and the ecology of a desert basin - MacDougal, Daniel Trembly, 1865 -1958 (Carnegie institution of Washington, 1914)

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Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1906)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1932)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1933)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1935)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1936)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1937)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1940)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation in Erie county, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Clapper, 1899)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation, in Erie County, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Press of Clapper Printing Co, 1899)

Science - American Association for the Advancement of Science. ([s.n.], 1893)

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

Science - American Association for the Advancement of Science. ([s.n.], 1897)

Science - American Association for the Advancement of Science. ([s.n.], 1898)

Science - American Association for the Advancement of Science. ([s.n.], 1880)

Science - American Association for the Advancement of Science. ([s.n.], 1906)

Science - American Association for the Advancement of Science. ([s.n.], 1910)

Science - American Association for the Advancement of Science. ([s.n.], 1912)

Science - American Association for the Advancement of Science. ([s.n.], 1914)

Science - American Association for the Advancement of Science. ([s.n.], 1922)

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A search for phytotoxins influencing germination and early growth of ponderosa pine - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1979)

Seasonal nitrification as influenced by crops and tillage - Jensen, Charles A. (Govt. print. off, 1910)

Sediment distribution, sand resources and geologic character of the inner continental shelf off Galveston County, Texas - Meisburger, Edward P. (U.S. Army Corps of Engineers, Coastal Engineering Research Center, 1979)

The seed plants, ferns, and fern allies of the Austin Region - Young, Mary Sophie, 1919 (The University, 1920)

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Seeds and plants imported during the period from December, 1903, to December, 1905; inventory no. 11, nos.9897 to 16796 ... - United States. Bureau of Plant Industry. (Gov't. Print. Off, 1907)

Seeds and plants imported through the Section of Seed and Plant Introduction for distribution in cooperation with the Agricultural experiment stations : inventory no. 9, numbers 4351-5500 - United States. Bureau of Plant Industry. (U.S. Dept. of Agriculture, Bureau of Plant Industry, 1902)

Seeds and plants imported - United States. Department of Agriculture. (G.P.O, 1907)

Seeds, garden and farm supplies, planting information, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Aggeler & Musser Seed Co, 1953)

Seeds, garden and farm supplies, planting information, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Aggeler & Musser Seed Co, 1954)

Select extra-tropical plants : readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select extra-tropical plants, readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (T. Richards, government printer, 1881)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (C. Troedel and Co, 1891)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (1895)

Select extra-tropical plants readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (Off. of the superintendent of government printing, 1880)

Select extra-tropical plants readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (Off. of the Superintendent of Government Printing, 1880)

Select extra-tropical plants readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (G.S. Davis, 1884)

Select extra-tropical plants readily eligible for Victorian industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select plants readily eligible for industrial culture or naturalisation in Victoria - Mueller, Ferdinand von, 1825 -1896 (Printed for the government of Victoria by McCarron, Bird & co, 1876)

A Selected bibliography of insect-vascular plant associational studies - Kingsolver, John M. (U.S. Dept. of Agriculture, Agricultural Research Service, 1984)

A selected bibliography of insectvascular plant associational studies - Sanderson, Milton W. (Milton William) (Agricultural Research Service, U.S. Dept. of Agriculture, 1967)

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Selected shrubland and grassland communities of the northern Great Plains - Montana Natural Heritage Program. (Nature Conservancy, 1999)

Selected western flora Manitoba, Saskatchewan, Alberta - Hales, B. J. (Benjamin Jones), 1868 -1945 (Macmillan, 1915)

Selected western flora, Manitoba, Saskatchewan, Alberta - Hales, B. J. (Benjamin Jones), 1868 -1945 (the Macmillan Co. of Canada, 1915)

Selectus e seminario Horti Botanici Cracoviensis - Uniwersytet Jagielloński. Ogród Botaniczny. (Hort Botanici Gracoviensis, 1906)

Sensitive plant species survey, Ashland District, Custer National Forest, Powder River and Rosebud Counties, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1996)

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 Sioux District, Custer National Forest, Carter County, Montana, and Harding County, South Dakota - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1937)

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

sheng wu ming cheng he sheng wu xue shu yu de ci yuan - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (ke xue chu ban she, 1979)

The shepherd's manual. A practical treatise on the sheep - Stewart, Henry. (Orange Judd company, 1876)

The shepherd's manual. A practical treatise on the sheep. Designed especially for American shepherds - Stewart, Henry. (O. Judd company, 1884)

A short guide to Canadian genera of seed plants - Adams, John, 1872 -1950 (Dominion of Canada, Dept. of Agriculture, 1927)

A short guide to Canadian genera of seed plants - Canada. Department of Agriculture. (Dominion of Canada, Dept. of griculture, 1938)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1981)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1985)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1987)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1998)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2000)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2001)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2002)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2006)

Sinonomia cientifica y vulgar de las plantas Yucatecas - Gaumer, George F, 1851 -1929 ([publisher not identified], 1890)

Sketches of the physical geography and geology of Nebraska - Aughey, Samuel, 1831 -1912 (Daily Republican Book and Job Office, 1880)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2012)

Smithsonian herpetological information service - Smithsonian Institution (Division of Reptiles and Amphibians, U.S. National Museum, 1983)

The smuts of Australia, their structure, life history, treatment, and classification - Victoria. Dept. of Agriculture. (J. Kemp, government printer, 1910)

Some new anatomical characters for certain Gramineæ - Holm, Theodor (Herman Theodor), 1854 -1932 (Tuttle, Morehouse & Taylor, 1903)

Some new and important plant disease occurrences and developments in the United States in 1957 - Nance, Nellie W. (Crops Research Division, Agricultural Research Service, United States Department of Agriculture, 1958)

Some unusual natural areas in Illinois - Evers, Robert A. (Robert August), 1912 - (Illinois Natural History Survey, 1977)

The Sonoran Quarterly - Desert Botanical Garden (Ariz.) (Desert Botanical Garden, 1993)

The Sonoran Quarterly - Desert Botanical Garden (Ariz.) (Desert Botanical Garden, 2002)

Southeast Montana wetland assessment : developing and refining Montana's wetland assessment and monitoring strategy - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2013)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2001)

Southern Alberta herbicide application project report, 1980 - Hoyles, S. E. (Alberta Energy and Natural Resources, 1982)

The spatial and temporal partitioning of a desert spider community, with descriptions of new species - Gertsch, Willis John, 1906 - (American Museum of Natural History, 1976)

Special papers - Ohio Academy of Science. (The Academy, 1899)

Special report on the history and present condition of the sheep industry of the United States - United States. Bureau of Animal Industry (Govt. Print. Off, 1892)

Special reports of state geologist, 1860 - Geological Survey of California. (John Wilson & Son, 1880)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1953)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1970)

Spring catalog and planting guide : garden, field. and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1958)

Spring catalog and planting guide : garden, field. and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1957)

Spring catalog : garden, field. and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1954)

Spring catalog : garden, field. and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1955)

Spring catalog : garden, field and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1952)

Spring catalog : garden, field and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Nicholson, 1953)

St. Croix's flora - Eggers, H. F. A. Baron von, (Heinrich Franz Alexander), 1844 -1903 (s.n, 1876)

Status of endangered and threatened sand area species of the Illinois flora - Illinois. Natural History Survey Division (Illinois Natural History Survey, 2011)

Status review of Astragalus barrii, U.S.D.A. Forest Service, Region 1, Custer National Forest, Montana ; prepared by Lisa Ann Schassberger - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Status Review of Astragalus barrii, U.S.D.A. Forest Service, Region 1, Custer National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Stock ranges of northwestern California : notes on the grasses and forage plants and range conditions - United States. Bureau of Plant Industry. (U.S. G.P.O, 1902)

Studies on the genus agropyron - Robinson, Wilfred, (University of Alberta, 1928)

The study of plant communities : an introduction to plant ecology - Oosting, Henry John, 1903 - (W.H. Freeman, 1948)

A study of the vegetation of southeastern Washington and adjacent Idaho - Weaver, John E. (John Ernest),‏ ‎ 1884 -1966 (1917)