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)

Ernährungsphysiologisches Praktikum der höheren Pflanzen - Grafe, Viktor, 1878 -1936 (P. Parey, 1914)

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)

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

Everything for farm, garden & lawn, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph Breck & Sons, 1935)

Everything for farm, garden and lawn, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph Breck & Sons, 1936)

Everything for farm, garden and lawn, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph Breck & Sons, 1939)

Everything for the farm and garden. 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1917)

Everything for the farm and garden : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ross Bros. Co, 1920)

Everything for the garden, lawn or farm : spring 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chaapel's Seed Store, 1941)

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, 1910)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1911)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1912)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1917)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1916)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1890)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1889)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1896)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1897)

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, 1900)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1901)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1902)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1905)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1907)

Experiment station record - United States. Office of Experiment Stations. (G.P.O, 1908)

Experiments in orchard culture - Munson, W. M. (Welton Marks), 1866 -1910 (Maine Agricultural Experiment Station, 1905)

Fall 1951 : cover collection of tulips - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson Stumpp & Walter Co, 1951)

Fall bulbs 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.E. Marshall & Co., Inc, 1927)

Fall bulbs 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.E. Marshall & Co., Inc, 1928)

Fall bulbs, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.E. Marshall & Co., Inc, 1929)

Fall bulbs : 1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thos. J. Grey Co, 1930)

Fall bulbs : 1931 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thos. J. Grey Co, 1931)

Fall garden guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Lagomarsino & Sons, 1941)

The families of flowering plants - Pollard, Charles Louis, 1872 -1945 (The Plant World Co, 1900)

Farm and garden rule-book - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1911)

Farm and garden rule-book; a manual of ready rules and reference with recipes, precepts, formulas, and tabular information for the use of general farmers, gardeners, fruit-growers, stockmen, dairymen, poultrymen, foresters, rural teachers, and others in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1911)

Farm and garden rule-book; a manual of ready rules and reference with recipes, precepts, formulas, and tabular information for the use of general farmers, gardeners, fruit-growers, stockmen, dairymen, poultrymen, foresters, rural teachers, and others in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

Farm and garden supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Griffith & Turner Co, 1898)

The farmers' handbook [4th ed.] - New South Wales. Dept. of Agriculture. (J. Spence, 1922)

The Farmers ready reference book - Items of interest co., St. Joseph, Mo., pub. (Items of interest co, 1913)

Farquhar's 1910 garden annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1910)

Farquhar's autumn catalogue : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1906)

Farquhar's autumn catalogue : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1908)

Farquhar's autumn catalogue : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1909)

Farquhar's autumn catalogue : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1910)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1918)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1919)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1920)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1921)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1922)

Farquhar's autumn catalogue : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1923)

Farquhar's autumn catalogue : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar Company, 1925)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1911)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1912)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1913)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1914)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1916)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1917)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1926)

Farquhar's autumn catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1927)

Farquhar's autumn catalogue : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1928)

Farquhar's catalogue of bulbs for autumn planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1903)

Farquhar's catalogue : spring 1904 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1904)

Farquhar's garden annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1907)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1906)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1908)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1909)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1911)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1912)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1913)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1914)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1915)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1929)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1930)

Farquhar's garden annual : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1931)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1916)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1917)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1918)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1919)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1920)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1921)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1924)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1925)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1926)

Farquhar's garden annual : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1927)

Farquhar's garden annual, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Farquhar, 1928)

Farquhar's garden annual : spring 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. & J. Farquhar, 1905)

Feeds and feeding - Henry, W. A. (William Arnon), 1850 -1932 (The Henry-Morrison company, 1915)

Feeds and feeding; a hand-book for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (The author, 1910)

Feeds and feeding : a handbook for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (Henry-Morrison Co, 1928)

Feeds and feeding : a handbook for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (Morrison Pub. Co, 1936)

Feeds and feeding : a hand-book for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (1912)

Feeds and feeding : a hand-book for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (The author, 1912)

Feeds and feeding, a hand-book for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (The author, 1898)

Feeds and feeding, a handbook for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (Pub. by the author, 1898)

Feeds and feeding; a handbook for the student and stockman - Henry, W. A. (William Arnon), 1850 -1932 (The Henry-Morrison company, 1922)

Femhundra afbildningar af mera allmänt förekommande svenska växter : för skolan och hemmet - Andersson, N. J. (Nils Johan), 1821 -1880 (Z. Haeggström, 1870)

Ferry's seed annual 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Ferry & Co, 1920)

Ferry's seed annual : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Ferry & Co, 1923)

Ferry's seed annual : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Ferry & Co, 1924)

Ferry's seed annual : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Ferry & Co, 1925)

Ferry's seed annual : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Ferry & Co, 1926)

The fertilizing value of hairy vetch for Connecticut tobacco fields - United States. Bureau of Plant Industry. (U.S. Dept. of Agriculture, Bureau of Plant Industry, 1908)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1875)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1883)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1884)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1892)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1894)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1895)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1899)

La feuille des jeunes naturalistes : revue mensuelle d'histoire naturelle (A. Dollfus, 1900)

Field crop production; a text-book for elementary courses in schools and brief courses in colleges - Livingston, George. (The Macmillan company, 1914)

Field crops - Wilson, A. D. (Archie Dell), 1875 - (Webb Pub. Co, 1918)

Field crops - Wilson, A. D. (Archie Dell), 1875 - (Webb publishing co, 1918)

Field crops - Wilson, A. D. (Archie Dell), 1875 - (Webb publishing co, 1912)

Field crops - Wilson, A. D. (Archie Dell), 1875 - (Webb Pub. Co, 1914)

Field crops in South Africa, by H. D. Leppan and G. J. Bosman - Bosman, Gideon Johannes, 1888 -1957 (Central News Agency, 1923)

Fieldbook of Illinois wild flowers; six hundred fifty of the more common flowering plants in the state - Illinois. Natural History Survey Division (Illinois. Natural History Survey Division, 1936)

Fieldiana. Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1946)

Finlands kärlvexter, ordnade i et naturligt system - Alcenius, Otto, 1838 -1913 (J. Simelii tryck, 1863)

Fire management notes - United States. Forest Service. (The Service, 1976)

Fiske Seed Company 1927 [catalog] : highest grade seeds, Boston - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fiske Seed Co, 1927)

Fiske Seed Company 1928 [catalog] : highest grade seeds, Boston - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fiske Seed Co, 1928)

Flora Aetnea, seu, Descriptio plantarum in Monte Aetna sponte nascentium - Tornabene, Francesco, 1813 -1897 (Ex Typis Francisci Galati, 1889)

Flora and fauna of Bucks County - Moyer, I. S. (Lewis, 1905)

Flora balearica, étude phytogéographique sur les íles Baléares - Knoche, Herman, 1870 -1945 (Imp. Roumégous et Déhan], 1921)

Flora Berolinensis, sive, Descriptio plantarum phanerogamarum circa Berolinum sponte crescentium vel in agris cultarum, additis Filicibus et Charis - Brandt, Johann-Friedrich, 1802 -1879 (In Bibliopolio Flittneriano, 1825)

Flora Berolinensis, sive, Enumeratio plantarum circa Berolinum sponte crescentium secundum familias naturales disposita - Kunth, Karl Sigismund, 1788 -1850 (Duncker et Humblot, 1838)

Flora Comense : disposta secondo il sistema di Linneo - Comolli, Giuseppe, 1780 -1849 (C.P. Ostinelli, 1847)

Flora Croatica : exhibens stirpes phanerogamas et vasculares cryptogamas quae in Croatia, Slavonia et Dalmatia sponte crescunt nec non illas quae frequentissime coluntur - Vukotinović, Ljudevit Farkaš, 1813 -1893 (Apud F. Zupan, 1869)

Flora del Modenese e del Reggiano - Pirotta, Romualdo, 1853 -1936 (Tip. di G.T. Vincenzi, 1882)

Flora der Baar und der angrenzenden Landesteile - Zahn, Karl Hermann, 1865 -1940 (s.n, 1889)

Die Flora der Bodenseegegend mit vergleichender Betrachtung der Nachbarfloren - Höfle, M. A. (Marc Aurel), 1855 (F. Enke, 1850)

Flora der Schweiz - Hegetschweiler, Johannes, 1789 -1839 (F. Schulthess, 1840)

Flora der Stadt Lemberg : oder Beschreibung, der um Lemberg wildwachsenden Pflanzen, nach ihrer Blüthezeit geordnet - Zawadski, Alexander, 1798 -1868 (Kuhn und Millikowski, 1836)

Flora gallica, seu, Enumeratio plantarum in Gallia sponte nascentium : secundum Linnaeanum systema digestarum : addita familiarum naturalium synopsi - Linné, Carl von, 1707 -1778 (Apud J.B. Baillière, 1828)

Flora Italica; sistens plantas in Italia et in insulis circumstantibus sponte nascentes - Bertoloni, Antonio, 1775 -1869 (R. Masi, 1833)

Flora melitensis nova - Sommier, Stefano, 1848 -1922 (Stabilimento Pellas, 1915)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1818)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1825)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1830)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1840)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1842)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1843)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1845)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1848)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1849)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1850)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1851)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1876)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1879)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1883)

Flora oder Botanische Zeitung :welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält - Königl. Bayer. Botanische Gesellschaft zu Regensburg. (Die Gesellschaft, 1913)

Flora of Bermuda ... - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1918)

Flora of Bermuda... - Britton, Nathaniel Lord, 1859 -1934 (Scribner, 1918)

Flora of China - Missouri Botanical Garden. (Science Press, 1900)

Flora of Delaware and the Eastern Shore : an annotated list of the ferns and flowering plants of the peninsula of Delaware, Maryland and Virginia - Tatnall, Robert Richardson, 1870 - (Society of Natural History of Delaware, 1946)

Flora of Illinois, containing keys for identification of flowering plants and ferns - Jones, George Neville, 1904 -1970 (University of Notre Dame Press, 1963)

Flora of Indiana - Deam, Charles Clemon, 1865 -1953 (Wm. B. Burford printing co., contractor for state printing and binding, 1940)