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 the neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)

Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahoma and Texas east of the one hundredth meridian - Small, John Kunkel, 1869 -1938 (The author, 1913)

Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian - Small, John Kunkel, 1869 -1938 (The author, 1903)

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

Flora of the southern United States : containing an abridged description of the flowering plants and ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi, and Florida: arranged according to the natural system - Chapman, A. W. (Alvan Wentworth), 1809 -1899 (Ivison, Blakeman, Taylor & co, 1889)

A flora of the State of New-York, comprising full descriptions of all the indigenous and naturalized plants hitherto discovered in the state; with remarks on their economical and medicinal properties - Torrey, John, 1796 -1873 (Carroll and Cook, Printers to the Assembly, 1843)

Flora of the state of Washington - Piper, Charles V. (Charles Vancouver), 1867 -1926 (G.P.O, 1906)

Flora of the state of Washington - Piper, Charles V. (Charles Vancouver), 1867 -1926 (Govt. Print. Off, 1906)

The flora of the town of Southold, Long Island, and Gardiner's Island - Burnham, Stewart H. (Stewart Henry), 1870 -1943 (Torrey Botanical Club, 1914)

Flora of the U.S.S.R - Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) (Israel Program for Scientific Translations, 1970)

Flora of the U.S.S.R - Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) (Israel Program for Scientific Translations, 1974)

Flora of the U.S.S.R - Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) (Israel Program for Scientific Translations, 1968)

Flora of the U.S.S.R - Botanicheskiĭ institut (Akademii︠a︡ nauk SSSR) (Israel Program for Scientific Translations, 2004)

Flora of the vicinity of New York; a contribution to plant geography - Taylor, Norman, 1883 -1967 (1915)

Flora of tropical Africa - Oliver, Daniel, 1830 -1916 (L. Reeve and co, 1868)

Flora of Vermont. List of ferns and seed plants growing without cultivation - Kirk, George Leavitt, 1878 -1966 (Free Press Print. Co, 1915)

Flora of Vermont; a list of the fern and seed plants growing without cultivation - Vermont Botanical Club. (Free Press Association, 1900)

Flora of Virgin Gorda (British Virgin Islands) - Wadsworth, Frank H. (Institute of Tropical Forestry, 1976)

A flora of western middle California - Jepson, Willis Linn, 1867 -1946 (Cunningham, Curtiss and Welch, 1911)

A flora of western middle California - Jepson, Willis Linn, 1867 -1946 (Encina Publishing Company, 1901)

Flora of Willoughby, Vermont - Kennedy, George G. (George Golding), 1841 -1918 (1904)

Flora padovana; ossia, Prospetto floristico e fitogeografico delle piante vascolari indigene inselvatichite o largamente coltivate crescenti nella provincia di Padova; con notizie storico-bibliografiche sulle fonti della flora ed illustrata da 20 tavole - Béguinot, Augusto, 1875 -1940 (Prem. Soc. coop. tip, 1909)

Flora Peoriana; the vegetation in the climate of middle Illinois - Brendel, Frederick, 1820 -1912 (J. W. Franks, 1887)

Flora simlensis; a handbook of the flowering plants of Simla and the neighbourhood - Collett, H. (Henry), 1836 -1901 (Thacker, Spink & Co, 1921)

Flora simlensis; a handbook of the flowering plants of Simla and the neighbourhood - Hemsley, W. Botting (William Botting), 1843 -1924 (Thacker, Spink & Co, 1902)

De flora van Nederland - Heukels, Hendrik, 1854 -1936 (N. v. boekhandel en drukkerij voorheen D.J. Brill, 1909)

Flora Vitiensis nova : a new Flora of Fiji (spermatophytes only) - Smith, Albert C. (Albert Charles), 1906 Apr 5 - (Pacific Tropical Botanical Garden, 1996)

Flora Vitiensis nova : a new Flora of Fiji (spermatophytes only) - Smith, Albert C. (Albert Charles), 1906 Apr 5 - (Pacific Tropical Botanical Garden, 1985)

Flora Vitiensis nova : a new Flora of Fiji (spermatophytes only) - Smith, Albert C. (Albert Charles), 1906 Apr 5 - (Pacific Tropical Botanical Garden, 1991)

Flora von Bayern - Vollmann, Franz. (E. Ulmer, 1914)

Flora von Bremen und Oldenburg - Buchenau, Franz, 1831 -1906 (Heinsius Nachfolger, 1919)

Flora von Bremen und Oldenburg : zum Gebrauch in Schulen und auf Exkursionen - Buchenau, Franz, 1831 -1906 (M. Heinsius Nachfolger, 1906)

Flora von Brixen a. E.; ein mit Standorts- und Höhenangaben versehenes Verzeichnis der im weiteren Gebiete von Brixen a. E. (Südtirol) beobachteten wildwachsenden höheren Sporen- und Samenpflanzen, der Nutzgewächse und Ziergehölze - Heimerl, Anton, 1857 - (Deuticke, 1911)

Flora von Deutschland und Fennoskandinavien sowie von Island und Spitzbergen - Hermann, Friedrich, 1873 - (T. O. Weigel, 1912)

Flora von Erfurt. Verzeichnis der im Kreise Erfurt und seiner nächsten Umgebung beobachteten Gafässpflanzen - Reinecke, Karl L. (C. Villaret, 1914)

Flora von Fiume - Knapp, Josef Armin, 1843 -1899 (1879)

Flora von Freiburg im Breisgau (Schwarzwald, Rheinebene, Kaiserstuhl, Baar) - Neuberger, Joseph. (Herdersche Verlagshandlung, 1912)

Flora von Freiburg im Breisgau (Südl. Schwarzwald, Rheinebene, Kaiserstuhl.) - Neuberger, Joseph. (Herdersche Verlagshandlung, 1903)

Flora von Neu-Vorpommern und den Inseln Rügen und Usedom - Marsson, Theodor Friedrich, 1816 -1892 (W. Engelmann, 1869)

Flora von Neuburg a. D. Verzeichnis der in den Amtsgerichtsbezirken Neuburg a. D., Rain und Monheim und den angrenzenden Teilen des übrigen Schwabens, Mittelfrankens und Oberbayerns wild wachsenden und häufiger kultivierten Gefässpflanzen - Erdner, Eugen. (Druck von Ph. J. Pfeiffer, 1911)

Flora von Nieder-Österreich - Beck-Mannagetta, G. (Günther), 1856 -1931 (C. Gerold, 1890)

Flora von Niederösterreich. Zum Gebrauche auf Excursionen und zum Selbstunterricht - Halácsy, Eugen v., 1842 -1913 (F. Tempsky, 1896)

Flora von Schlesien, preussischen und österreichischen Anteils - Schube, Theodor, 1860 -1934 (Korn, 1904)

Flora von Steiermark, eine systematische Bearbeitung der im Herzogtum Steiermark wildwachsenden oder im Grossen gebauten Farn- und Blütenpflanzen nebst einer pflanzengeographischen Schilderung des Landes - Naturwissenschaftlicher Verein für Steiermark. (Borntraeger, 1908)

Flora voor de Nederlandsch West-Indische eilanden - Boldingh, Isaäc, 1879 -1938 (Druk. van J. H. de Bussy, 1913)

Floral almanac : containing the flowering season of one thousand and seven hundred phaenogamous plants of Florida - Schaffranek, A. (Palatka News Pub. Co, 1888)

Floras (1865)

Flore de l'île de Lesbos : plantes sauvages et cultivées - Candargy, C. A. (A. Diggelmann, 1889)

Flore de la Suisse. Première ptie, Flore d'excursion - Schinz, Hans, 1858 -1941 (F. Rouge, 1909)

Flore de Madagascar et des Comores : plantes vasculaires - Humbert, H. 1887 -1967 (Imprimerie officielle, 1946)

Flore générale de l'Indo-Chine - Lecomte, Henri, 1856 -1934 (Masson, 1907)

Florida scientist - Florida Academy of Sciences. (Florida Academy of Sciences, 1977)

Florida trees; a handbook of the native and naturalized trees of Florida - Small, John Kunkel, 1869 -1938 (The author, 1913)

The florist and pomologist - Hogg, Robert, 1818 -1897 ("Journal of Horticulture" Office, 1870)

Floristicka istrazivanja po jugoistocnoj hrvatskoj - Rossi, Ljudevit, 1850 - (Tisak Kr. Zemaljske Tiskare, 1915)

Florists' review (Florists' Pub. Co, 1921)

The flower-finder. Frontispiece photographed by W.H. Stedman, other photographs byHenry Troth. 573 pen and ink drawings from nature by the author - Walton, George Lincoln, 1854 -1941 (1916)

The flower garden: its design, formation, planting and management, including the description and cultivation of all hardy and half-hardy plants, trees and shrubs adapted for outdoor culture in the British Isles - Sanders, T. W. (Thomas William), 1855 -1926 (W.H. & L. Collingridge)

Flowering plants and ferns of Arizona - Kearney, Thomas H. (Thomas Henry), 1874 -1956 (U.S. Dept. of Agriculture, 1942)

Flowering plants : basswoods to spurges - Mohlenbrock, Robert H., 1931 - (Southern Illinois University Press, 1982)

The flowering plants of Africa; an analytical key to the genera of African phanerogams - Thonner, Franz, 1863 - (Dulau & Co., Ltd, 1915)

Flowers and insects; lists of visitors of four hundred and fifty-three flowers - Robertson, Charles, 1858 -1935 (n.p, 1928)

Földtani közlöny - Magyar Földtani Társulat. (1957)

The forest resources of the territories of Papua and New Guinea - Lane-Poole, Charles Edward, 1885 -1970 (Printed and Pub. for the government of the commonwealth of Australia by H.J. Green, government printer for the State of Victoria, 1925)

Forest restoration of Lincoln Boyhood National Memorial : presettlement, existing vegetation, and restoration management recommendations - United States. National Park Service. (U.S. Dept. of the Interior, National Park Service, Midwest Region, 1989)

The forest trees of Britain - Johns, C. A. (Charles Alexander), 1811 -1874 (Society for Promoting Christian Knowledge, 1800)

Forest trees of the Pacific slope - Sudworth, George B. (George Bishop), 1864 -1927 (Govt. Print. Off, 1908)

Forstliche Botanik - Schwarz, Frank, 1857 -1928 (P. Parey, 1892)

Förteckning öfver Skandinaviens växter. 1, Karlväxter - Lunds botaniska förening. (C.W.K. Gleerup, 1907)

Fortuna Forest Reserve, Panama : interacting effects of climate and soils on the biota of a wet premontane tropical forest - Dalling, James W., (Smithsonian Scholarly Press, 2021)

Foundations of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & Co, 1901)

The freshwater swamp-forest of South Johore and Singapore - Corner, E. J. H. (Edred John Henry) (Botanic Gardens, Parks & Recreation Dept, 1978)