Status review of Lesquerella klausii, U.S. Forest Service, Region 1, Helena and Lewis & Clark National Forests, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Status review of Lesquerella klausii, U.S. Forest Service, Region 1, Helena and Lewis & Clark National Forests, Montana - Montana Natural Heritage Program. ([Montana Natural Heritage Program], 1988)

Status review of Lesquerella sp. novum, Butte District, Bureau of Land Management, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1993)

Status review of Penstemon lemhiensis, U.S. Forest Service, Region 1, Beaverhead and Bitterroot National Forests, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1987)

Status review of Phlox kelseyi var. missoulensis, U.S.D.A. Forest Service, Region 1, Lewis and Clark National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Status review update and establishment of demographic monitoring studies: Penstemon lemhiensis - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1990)

The stock-poisoning plants of Montana: a preliminary report - Chesnut, V. K. (Victor King), 1867 -1938 (Govt. print. off, 1901)

The stock-poisoning plants of Montana : a preliminary report - Chesnut, V. K. (Victor King), 1867 -1938 (Govt. Print. Off, 1901)

Strategic plan for the Coordinated Intermountain Restoration Project - Geological Survey (U.S.) (U.S. Department of the Interior, U.S. Geological Survey, 2003)

Streptanthus morrisonii complex : final report - United States. Bureau of Land Management. (Tierra Madre Consultants, 1987)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (Swan Sonnenschein, 1895)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein & co, 1896)

A students' text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein, 1895)

Studies of reptile life in the arid Southwest - Klauber, Laurence Monroe, 1883 -1968 ([Zoological Society of San Diego], 1939)

Studies on Rocky Mountain flora - Rydberg, Per Axel, 1860 -1931 (New York Botanical Garden, 1912)

Studies scientific & social / by Alfred Russel Wallace - Wallace, Alfred Russel, 1823 -1913 (Macmillan and co., limited, 1900)

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

A summary of the prevalence of plant diseases in the Dominion of Canada, 1920-1924 - Canada. Department of Agriculture. (F.A. Acland, Printer to the King's Most Excellent Majesty, 1926)

Supplement to the Catalogue of Arkansas plants - Buchholz, J. T. (John Theodore), 1888 -1951 (Academy of Science of St. Louis], 1926)

Supplementum primum Prodromi florae Novae Hollandiae: exhibens proteaceas novas quas in Australasia legerund, DD. Baxter, Caley, Cunningham, Freser et Sieber - Brown, Robert, 1773 -1858 (Typis R. Taylor, 1830)

A survey of Canadian plants in relation to their environment - Adams, John, 1872 -1950 (Canada Dept. of Agriculture, 1927)

A survey of extent and cost of weed control and specific weed problems - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1965)

Surveys of significant plant resources in southeast and south-central Montana on the Billings and Miles City field offices of the Bureau of Land Management - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2006)

Sweet's Hortus britannicus, or a catalogue of plants cultivated in the gardens of Great Britain, arranged in natural orders ... - Sweet, Robert, 1783 -1835 (J. Ridgway, 1827)

Sweet's Hortus britannicus; or, A catalogue of plants, indigenous, or cultivated in the gardens of Great Britain;arranged according to their natural orders, with references to the Linnean class and order to which each genus belongs; the whole brought up to the present time, and contains above 34,000 plants ... - Sweet, Robert, 1783 -1835 (J. Ridgway, 1830)

Sweet's Hortus britannicus; or, A catalogue of plants, indigenous, or cultivated in the gardens of Great Britain; arranged according to their natural orders, with references to the Linnean class and order to which each genus belongs; the whole brought up to the present time, and contains above 34,000 plants ... - Sweet, Robert, 1783 -1835 (J. Ridgway, 1830)

Sweet's Hortus britannicus : or a catalogue of plants cultivated in the gardens of Great Britain, arranged in natural orders - Sweet, Robert, 1783 -1835 (J. Ridgway, 1826)

Syllabus de Pflanzenfamilien, eine Übersicht über das gesamte Pflanzensystem mit besonderer Berücksichtigung der Medizinalund Nutzpflanzen nebst einer Ubersicht über die Florenreiche und Florengebiete der Erde zum Gebrauch bei Vorlesungen und Studien über spezielle und medizinisch-pharmazeutische Botanik - Engler, Adolf, 1844 -1930 (Borntraeger, 1919)

Syllabus der Pflanzenfamilien : eine Übersicht über das gesamte Pflanzensystem mit Berücksichtigung der Medizinal- und Nutzpflanzen, nebst einer Übersicht über die Florenreiche und Florengebiete der Erde : zum Gebrauch bei Vorlesungen und Studien über spezielle und medizinisch-pharmazeutische Botanik - Engler, Adolf, 1844 -1930 (Gebrüder Borntraeger, 1904)

Syllabus der pflanzenfamilien : eine übersicht über das gesamte pflanzensystem mit berücksichtigung der medizinal- und nutzpflanzen, nebst einer übersicht über die florenreiche und florengebiete der erde, über spezielle und medizinisch-pharmazeutische botanik - Engler, Adolf, 1844 -1930 (Gebrüder Borntraeger, 1909)

Syllabus der Pflanzenfamilien : eine Übersicht über das gesamte Pflanzensystem mit Berücksichtigung der Medicinal- und Nutzpflanzen nebst einer Übersicht über die Florenreiche und Florengebiete der Erde zum Gebrauch bei Vorlesungen und Studien über specielle und medicinisch-pharmaceutische Botanik - Engler, Adolf, 1844 -1930 (Borntraeger, 1903)

Syllabus der Vorlesungen über specielle und medicinisch-pharmaceutische Botanik. Eine Uebersicht über das gesammte Pflanzensystem mit Berücksichtigung der Medicinal- und Nutzpflanzen - Engler, Adolf, 1844 -1930 (Gebrüder Borntraeger, 1892)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1884)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1788)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1895)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1897)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1898)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1899)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1902)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1905)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1906)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1931)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1978)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1979)

Synonymia botanica locupletissima generum, sectionum vel subgenerum ad finem anni 1858 promulgatorum : In forma conspectus systematici totius regni vegetabilis schemati Endlicheriano adaptati - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischer, 1870)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

Synopsis of the flora of Colorado - Coulter, John Merle, 1851 -1928 (Govt. print. off, 1874)

A synopsis of the flora of the western states - Riddell, John Leonard, 1807 -1867 (E. Deming, 1835)

A synopsis of the genera of American plants, according to the latest improvements on the Linnaean system: with the new genera of Michaux and others. Intended for the use of students in botany ... - Rich, Oliver O. (Printed by J. M. Carter, for J. Milligan, and Richards and Mallory, Georgetown, A. Finley, Philadelphia; [etc., etc.], 1814)

Synopsis of the genera of vascular plants in the vicinity of San Francisco, with an attempt to arrange them according to evolutionary principles - Behr, H. H. (Hans Herman), 1818 -1904 (Payot, Upham, 1884)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J. B. Metzler, 1855)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J.B. Metzler, 1855)

Synopsis plantarum :seu, Enumeratio systematica plantarum plerumque adhuc cognitarum cum differentiis specificis et synonymis selectis ad modum Persoonii elaborata - Dietrich, David Nathanael Friedrich, 1800 -1888 (B. F. Voigtii, 1840)

Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum - Persoon, C. H. (Christiaan Hendrik), 1755 -1837 (C.F. Cramerum, 1805)

Synoptical flora of North America - Gray, Asa, 1810 -1888 (American Book Company, 1895)

Synoptical flora of North America - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, and Co. [etc.,etc.], 1878)

Synoptical flora of North America - Gray, Asa, 1810 -1888 (American Book Company, 1878)

Synoptical flora of North America: the Gamopetalæ, being a second edition of vol. I, part II, and vol. II, part I, collected - Gray, Asa, 1810 -1888 (Iverson, Blakeman, Taylor, and Company, 1886)

Synoptical flora of North America : the Gamopetalae, a second edition of vol. I, pt. II, and vol. II, pt. I - Gray, Asa, 1810 -1888 (Smithsonian Institution, 1888)

Tableau de l'école de botanique du Jardin du roi - Desfontaines, René Louiche, 1750 -1833 (J. A. Brosson, 1815)

Tableau de l'École de botanique du Muséum d'histoire naturelle - Desfontaines, René Louiche, 1750 -1833 (J. A. Brosson, 1804)

Tableau encyclopédique et méthodique des trois règnes de la nature. Botanique - Poiret, Jean-Louis-Marie, 1755 -1834 (Panckoucke, 1823)

Taxonomic literature : a selective guide to botanical publications and collections with dates, commentaries and types. Volume VI, Sti-Vuy - Cowan, Richard S., 1921 -1997 (Bohn, Scheltema & Holkema, 1986)

Taxonomic literature : a selective guide to botanical publications and collections with dates, commentaries and types. Supplement VIII, Fres-G - Dorr, Laurence J. (A.R.G. Gantner Verlag K.G, 2009)

Taxonomic literature : a selective guide to botanical publications and collections with dates, commentaries and types. Volume III, Lh-O - Cowan, Richard S., 1921 -1997 (Bohn, Scheltema & Holkema, 1976)

Taxonomic novelties from North America north of Mexico : a 20-year vascular plant diversity baseline - Hartman, Ronald L (Missouri Botanical Garden Press, 1998)

Taxonomic report of the International Lepidoptera Survey - Gatrelle, Ronald R. (International Lepidoptera Survey, 2003)

Taxonomic report of the International Lepidoptera Survey - Gatrelle, Ronald R. (International Lepidoptera Survey, 2010)

Taxonomic report of the International Lepidoptera Survey - Gatrelle, Ronald R. (International Lepidoptera Survey, 2021)

A taxonomic study of the Nearctic spider wasps belonging to the tribe Pompilini (Hymenoptera: Pompilidae) - Evans, Howard E. (Howard Ensign), 1922 -2002 (1900)

Taxonomy and ecology of grassland sedges - Marfleet, Frederic C., (University of Alberta, 1950)

The taxonomy, distribution and ecology of California desert ants (Hymenoptera, Formicidae) - United States. Bureau of Land Management. ([Publisher not identified], 1979)

Technical series / Bureau of Entomology United States Department of Agriculture - United States. Bureau of Entomology. (Govt. print. off, 1912)

Tennessee Native Plant Society newsletter - Tennessee Native Plant Society. (The Society, 2023)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1882)

Test of seeds of Mohave Desert shrubs : progress report - Kay, Burgess L. (1976)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1949)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1950)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1972)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1985)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1989)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1990)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1999)

A text-book of grasses : with especial reference to the economic species of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (Macmillan, 1914)

A text-book of grasses with especial reference to the economic species of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (Macmillan Co, 1914)

Text-book of structural and physiological botany - Bennett, Alfred W. (Alfred William), 1833 -1902 (J. Wiley & sons, 1877)

Text-book of western botany : consisting of Coulter's Manual of the botany of the Rocky mountains, to which is prefixed Gray's lessons in botany. For the use of schools and colleges between the Mississippi river and the Rocky mountains - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and Company, 1885)

Theodore Payne : seeds, plants, trees - Payne, Theodore (Nursery) (The Foundation, 1918)

Theodore Payne : seeds, plants, trees - Payne, Theodore (Nursery) (The Foundation, 1922)

Threatened and endangered plants of Alaska - United States. Bureau of Land Management. (U.S. Department of Agriculture, Forest Service, 1979)

Threatened and endangered plants of Nevada : an illustrated manual - U.S. Fish; Wildlife Service (U.S. Department of Agriculture, Fish & Wildlife Service, 1981)