Flora of Middlesex : a topographical and historical account of the plants found in the county : with sketches of its Physical Geography and climate and of the progress of Middlesex Botany during the last three centuries - Trimen, Henry, 1843 -1896 (R. Hardwicke, 1869)

Flora of Nebraska; a list of the conifers and flowering plants of the state with keys for their determination - Petersen, Niels Frederick, 1877 - (1912)

Flora of Nebraska; a list of the conifers and flowering plants of the state, with keys for their determination - Petersen, Niels Frederick, 1877 - (Printed by State Printing Co, 1912)

Flora of Nebraska; a list of the ferns, conifers and flowering plants of the state with keys for their determination - Petersen, Niels Frederick, 1877 - (1923)

The flora of New England : a manual for the identification of all vascular plants including ferns and fern allies growing without cultivation in New England - Seymour, Frank Conkling. (H.N. and A.L. Moldenke, 1982)

Flora of New Mexico - Standley, Paul Carpenter, 1884 -1963 (G.P.O, 1915)

Flora of New Mexico. By E.O. Wooton and Paul C. Standley - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1915)

A flora of North America :containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico, arranged according to the natural system - Gray, Asa, 1810 -1888 (Wiley & Putnam, 1838)

The flora of North Carolina from Ranunculaceae to Salviniaceae - Hyams, C. W. (Charles Walter), 1864 - (The North Carolina College of Agriculture and Mechanic Arts, Agricultural Experiment Station, 1899)

Flora of northwest America ... - Howell, Thomas, 1842 -1912 (1903)

A flora of northwest America : containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia. Vol. I, Phanerogamae - Howell, Thomas, 1842 -1912 ([s.n.], 1897)

A flora of northwest America : containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia - Howell, Thomas, 1842 -1912 ([s.n.], 1903)

A flora of northwest America, containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia - Howell, Thomas, 1842 -1912 (1903)

A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia - Howell, Thomas, 1842 -1912 ([s.n.], 1903)

Flora of Onondaga county as collected by the members of the Syracuse Botanical Club - Goodrich, L. Leonora Hutchinson. (McDonnell, 1912)

The flora of Oxfordshire and its contiguous counties : (comprising the flowering plants only;) arranged in easy and familiar language according to the Linnaean and natural systems ; preceded by an introduction to botany - Walker, Richard, 1790 or 1791 -1870 (H. Slatter, 1833)

The flora of Oxfordshire, and its contiguous counties, (comprising the flowering plants only). Arranged in easy and familiar language, according to the Linnaean and natural systems; preceded by an introduction to botany, with illustrative plates - Walker, Richard, 1790 or 1791 -1870 (H. Slatter; Longman, Rees, Orme, Brown, Green, and Longman [etc.] London, 1833)

The flora of Oxfordshire; being a topographical and historical account of the flowering plants and ferns found in the county, with sketches of the progress of Oxfordshire botany during the last three centuries - Druce, George Claridge, 1850 -1932 (Parker and Co, 1886)

Flora of Pennsylvania - Small, John Kunkel, 1869 -1938 (Ginn & Company, 1903)

Flora of Pennsylvania - Small, John Kunkel, 1869 -1938 (Ginn & Co, 1903)

The flora of Perthshire - White, Francis Buchanan, 1842 -1894 (Perthshire Society of Natural Science, 1898)

Flora of southeastern Washington and adjacent Idaho - Piper, Charles V. (Charles Vancouver), 1867 -1926 (New Era, 1914)

Flora of southeastern Washington and adjacent Idaho - Piper, Charles V. (Charles Vancouver), 1867 -1926 (Press of the New era printing company, 1914)

The flora of Suffolk a topographical enumeration of the plants of the county, showing the results of former observations and of the most recent researches - Hind, Wheelton, 1859 -1920 (Gurney and Jackson, 1889)

The flora of Switzerland - Gremli, A. (August), 1833 -1899 (Orell, Füssli & Co, 1888)

The flora of Switzerland for the use of tourists and field-botanists - Gremli, A. (August), 1833 -1899 (D. Nutt, 1889)

Flora of Syria, Palestine, and Sinai : from the Taurus to Ras Muhammas and from the Mediterranean sea to the Syrian desert - Post, George E. (George Edward), 1838 -1909 (Syrian Protestant college, 1896)

Flora of Syria, Palestine and Sinai; from the Taurus to Ras Muhammad, and from the Mediterranean Sea to the Syrian desert - Post, George E. (George Edward), 1838 -1909 (Syrian Protestant College, 1896)

The flora of Tennessee and a philosophy of botany, respectfully dedicated to the citizens of Tennessee - Gattinger, Augustin, 1825 -1903 (Press of Gospel Advocate Publishing Company, 1901)

The flora of the Alps : being a description of all the species of flowering plants indigenous to Switzerland; and of the alpine species of the adjacent mountain districts of France, Italy, & Austria including the Pyrenees - Bennett, Alfred W. (Alfred William), 1833 -1902 (Truslove & Comba, 1898)

The flora of the Alps being a description of all the species of flowering plants indigenous to Switzerland; and of the Alpine species of the adjacent mountain districts of France, Italy, & Austria including the Pyrenees - Bennett, Alfred W. (Alfred William), 1833 -1902 (J.C. Nimmo, 1896)

The flora of the Alps; being a description of all the species of flowering plants indigenous to Switzerland; and of the alpine species of the adjacent mountain districts of France, Italy, & Austria including the Pyrenees - Bennett, Alfred W. (Alfred William), 1833 -1902 (J. C. Nimmo, 1896)

The flora of the Alps; being a description of all the species of flowering plants indigenous to Switzerland; and of the alpine species of the adjacent mountain districts of France, Italy, & Austria including the Pyrenees - Bennett, Alfred W. (Alfred William), 1833 -1902 (J. C. Nimmo, 1897)

The flora of the Alps; being a description of all the species of flowering plants indigenous to Switzerland; and of the Alpine species of the adjacent mountain districts of France, Italy, & Austria including the Pyrenees - Bennett, Alfred W. (Alfred William), 1833 -1902 (Nimmo, 1900)

Flora of the Black Hills of South Dakota - Rydberg, Per Axel, 1860 -1931 (Govt. Print. Off, 1896)

Flora of the Bristol coal-field - Bristol Naturalists' Society (Bristol, England) (J. Fawn & Son [etc.], 1881)

Flora of the Bristol coal-field - Bristol Naturalists' Society (Bristol, England) (J. Fawn [etc.], 1881)

Flora of the Colosseum of Rome, or, Illustrations and descriptions of four hundred and twenty plants growing spontaneously upon the ruins of the Colosseum of Rome - Deakin, Richard, 1808 -1873 (Groombridge, 1855)

Flora of the District of Columbia and vicinity. By A.S. Hitchcock and Paul C. Standley, with the assistance of the botanists of Washington - Standley, Paul Carpenter, 1884 -1963 (Govt. print. off, 1919)

Flora of the Indiana dunes, a handbook of the flowering plants and ferns of the lake Michigan Coast of Indiana and of the Calumet District - Peattie, Donald Culross, 1898 -1964 (Field Museum of Natural History, 1930)

A flora of the islands of Jersey, with a list of the plants of the Channel Islands in general, and remarks upon their distribution and geographical affinities - Lester-Garland, Lester Vallis, 1860 -1944 (West, Newman, 1903)

The flora of the North Appalachian Experimental Watershed and surrounding territory - Moldenke, Harold N. (Harold Norman), 1909 -1996 (Soil Conservation Service, U.S.D.A, 1943)

A flora of the north-east of Ireland : including the Phanerogamia, the Cryptogamia vascularia, and the Muscineae - Corry, Thomas H. (Thomas Hughes), 1859 -1883 (Belfast Naturalists' Field Club, 1888)

A flora of the northern and middle sections of the United States; or, A systematic arrangement and description of all the plants hitherto discovered in the United States north of Virginia Vol. 1 - Torrey, John, 1796 -1873 (Swords, 1824)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1917)

Flora of the Rocky Mountains and adjacent plains : Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (Rydberg, 1917)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and the neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)