Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz - Rabenhorst, Ludwig, 1806 -1881 (E. Kummer, 1889)

Draft environmental impact statement, Custer National Forest : noxious weed treatment program : Montana ... - United States. Forest Service. (The Service, 1986)

An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) - U.S. Fish; Wildlife Service (Department of the Interior, U.S. Fish and Wildlife Service, Northeast Region, 1980)

Ecological land classification of Police Outpost Provincial Park and Outpost Wetlands natural area - Alberta. Alberta Environment. (Alberta Environment, 2001)

An ecological survey of Isle Royale, Lake Superior - Adams, Charles C. (Charles Christopher), 1873 -1955 (Wynkoop Hallenbeck Crawford Co., State Printers, 1909)

The ecology of the plants native to Dutchess County, New York - Roberts, Edith Adelaide, 1881 - (Conservation Committee of the Garden Club of America, 1924)

Ecology of the Svjatoj Nos wetlands, Lake Baikal : results of the Svjatoj Nos 1991 expedition - Mlâikovskây, Jiérâi (Ninox Press, 1992)

Edinburgh Journal of Natural and Geographical Sciences (1829)

Edmonston's flora of Shetland : comprehending a list of the prevalent wild-flowers, horse-tails, club-mosses and ferns of the Shetland Isles - Saxby, Argyll (Oliphant, Anderson & Ferrier, 1903)

Eesti Looduseuurijate Seltsi aastaraamat - Eesti Looduseuurijate Selts. (Valgus, 1906)

Eesti Looduseuurijate Seltsi aastaraamat - Eesti Looduseuurijate Selts. (Valgus, 1908)

Elémens de physiologie végétale et de botanique - Royal College of Physicians of Edinburgh. (chez Magimel, 1815)

An elementary course of botany : structural, physiological, and systematic - Henfrey, Arthur, 1819 -1859 (John Van Voorst, 1878)

An elementary text-book of botany - Vines, Sydney Howard, 1849 -1934 (W.S. Sonnenschein & Allen, 1880)

An elementary text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein & co., lim, 1898)

Elemente der wissenschaftlichen Botanik - Wiesner, Julius, 1838 -1916 (A. Hölder, 1906)

Elements of the philosophy of plants : containing the principles of scientific botany, nomenclature, theory of classification, phytography, anatomy, chemistry, physiology, geography, and diseases of plants, with a history of the science, and practical illustrations - Candolle, Augustin Pyramus de, 1778 -1841 (Printed for William Blackwood, and T. Cadell, 1821)

English botany, or, Coloured figures of British plants - Salter, John William, 1820 -1869 (R. Hardwicke, 1886)

The English flora. Vol. I - Smith, James Edward, 1759 -1828 (Longman, 1824)

The English flora - Smith, James Edward, 1759 -1828 (Longman, Rees, Orme, Brown and Green, 1828)

The English flora - Smith, James Edward, 1759 -1828 (Printed for Longman, Hurst, Rees, Orme, Brown, and Green, 1824)

The English flora - Smith, James Edward, 1759 -1828 (Longman, Hurst, Rees, Orme, Brown, and Green, 1824)

Entomologische berichten - Nederlandse Entomologische Vereniging (1942)

Entomologische Blätter : internationale Monatsschrift für die Biologie der Käfer Europas unter besonderer Berücksichtigung der Forstentomologie - Naturhistorischer Verein der Rheinlande und Westfalens. (Fritz Pfenningstorff, 1910)

Entomologische Nachrichten (R. Friedländer [etc.], 1896)

Entomologische Nachrichten (R. Friedländer [etc.], 1897)

Entomologisk tidskrift - Entomologiska föreningen i Stockholm (Jacob Spångberg, 1904)

Entomologisk tidskrift - Entomologiska föreningen i Stockholm (Jacob Spångberg, 1908)

The entomologist's record and journal of variation - Tutt, James William, 1858 -1911 (s.n, 2012)

Die Entomostrakenfauna der "alten Donau" bei Wien : eine ethologische Studie - Steuer, Adolf, 1871 - (G. Fisher, 1901)

Enumeración de las plantas de la Peninsula Hispano-Lusitana é Islas Baleares, con la distribución geográfica de las especies, y sus nombres vulgares, tanto nacionales como provinciales - Colmeiro, Miguel, 1816 -1901 (Impr. de las Viuda é Hija de Fuentenebro, 1885)

Enumeración y revisión de las plantas de la Peninsula Hispano-Lusitana é Islas Baleares, con la distribución geográfica de las especies, y sus nombres vulgares, tanto nacionales como provinciales - Colmeiro, Miguel, 1816 -1901 (Fuentenebro, 1889)

Enumeratio plantarum Transsilvaniae : exhiben: stirpes phanerogamas sponte crescentes atque frequentius cultas, cryptogamas vasculares, charceas, etiam muscos hepaticasque - Schur, Philipp Johann Ferdinand, 1799 -1878 (Apud G. Braumhuller, 1866)

Enumeratio plantarum, vel ab alium vel ab ipso observatum, cum earum differentiis specificis, synonymis selectis et descriptionibus succinctis - Vahl, M. (Martin), 1749 -1804 (Impensis auctoris, & prostat apud J.H. Schubothe, 1805)

Enumeratio systematica fungorum in omnium herbarum europaearum organis diversis hucusque observatorum mentione facta fontium litterariorum diagnoses eorum figurasque proferentium nec non praecipuorum eorum synonymorum numerorumque collectionum plurium venalium species enumeratas - Oudemans, C. A. J. A. (Cornelis Antoon Jan Abraham), 1825 -1906 (apud M. Nijhoff, 1919)

Erigenia : journal of the Illinois Native Plant Society - Illinois Native Plant Society. (The Society, 1983)

Erigenia : journal of the Illinois Native Plant Society - Illinois Native Plant Society. (The Society, 1985)

Erigenia : journal of the Illinois Native Plant Society - Illinois Native Plant Society. (The Society, 1991)

The Eskimo tribes; their distribution and characteristics, especially as regards language, with a comparative vocabulary and sketch-map - Rink, H. (Hinrich), 1819 -1893 (1887)

Essai d'un exposé géognostico-botanique de la flore du monde primitif - Sturm, Jakob, 1771 -1848 (Imprimé chez la veuve de Christophe Ernest Brenck, 1823)

Essai de phytostatique appliqué à la chaîne du Jura et aux contrées voisines, ou Étude de la dispersion des plantes vasculaires envisagée principalement quant à l'influence des roches soujacentes - Thurmann, Jules, 1804 -1855 (Jent et Gassmann, 1849)

Essai sur la topographie médicale d'Aix-en-Savoie (Dt. du Mt.-Blanc) et sur ses eaux minérales. Présenté à l'Ecole de médecine de Montpellier, 12-26. nivôse an X - Despine, Charles-Humbert-Antoine, 1777 -1852 (Izar et Ricard], 1802)

Essex naturalist : being the journal of the Essex Field Club - Essex Field Club. (The Club, 1918)

Etude des fleurs, botanique élémentaire, descriptive et usuelle - Cariot, Antoine, abbé, 1820 -1883 (Girard et Josserand, 1865)

Etude sur la géographie botanique de l'Europe, et en particulier sur la végétation du plateau central de la France - Lecoq, Henri, 1802 -1871 (J.-B. Baillière, 1854)

Études sur la géographie botanique de l'Europe, et en particulier sur la végétation du plateau central de la France - Lecoq, Henri, 1802 -1871 (H. Baillière, 1854)

Eurasian water milfoil, Alberta lake survey 1982 - Alberta. Pesticide Chemicals Branch. (Alberta Environment, Pollution Control Division, Pesticide Chemicals Branch, 1984)

Eurasian water milfoil, Alberta lake survey 1983 - Alberta. Pesticide Chemicals Branch. (Alberta Environment, Pollution Control Division, Pesticide Chemicals Branch, 1984)

Excursionsflora für das Grossherzogthum Baden - Seubert, Moritz, 1818 -1878 (J. Engelhorn, 1863)

Exkursionsflora für die Schweiz - Gremli, A. (August), 1833 -1899 (E. Wirz, 1901)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1913)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1898)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1904)

Fauna och flora : populär tidskrift för biologi - Naturhistoriska riksmuseet (Sweden) (Almqvist & Wiksells, 1918)

The fern allies : a supplement to The ferns of Great Britain - Sowerby, John E. (John Edward), 1825 -1870 (Printed by Taylor and Francis for the proprietor, J. E. Sowerby, 1856)

The fern allies of North America north of Mexico - Clute, Willard Nelson, 1869 -1950 (F. A. Stokes company, 1905)

The fern allies of North America north of Mexico - Clute, Willard Nelson, 1869 -1950 (F. A. Stokes, 1905)

The fern allies of North America north of Mexico - Clute, Willard Nelson, 1869 -1950 (Stokes, 1905)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1899)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1902)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1903)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1905)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1906)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1907)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1908)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1911)

The Fern bulletin - Clute, Willard Nelson, 1869 -1950 (W. N. Clute & Co, 1912)

The fern garden : how to make, keep, and enjoy it ; or, fern culture made easy / By Shirley Hibberd - Hibberd, Shirley, 1825 -1890 (Groombridge, 1872)

The fern garden : how to make, keep, and enjoy it ; or, Fern culture made easy - Hibberd, Shirley, 1825 -1890 (W.H. and L. Collingridge, 1894)

The fern garden : how to make, keep, and enjoy it, or, Fern culture made easy - Hibberd, Shirley, 1825 -1890 (Groombridge, 1870)

The fern garden: how to make, keep, and enjoy it; or, Fern culture made easy - Hibberd, Shirley, 1825 -1890 (Groombridge and sons, 1869)

The fern garden : how to make, keep and enjoy it, or, fern culture made easy - Hibberd, James Shirley. (Groombridge, 1881)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 1974)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 1979)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 1985)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 2000)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 2012)

The Fern gazette - British Pteridological Society. (British Pteridological Society, 2013)

Ferns and fern allies of Canada - Cody, William J. (Research Branch, Agriculture Canada, 1989)