Handbuch der Blütenbiologie, unter Zugrundelegung von Herman Müllers Werk: "Die Befruchtung der Blumen durch Insekten." - Knuth, Paul, 1854 -1899 (W. Engelmann, 1898)

Handbuch der Naturgeschichte aller drei Reiche, fur Lehrer and Lernende, fur Schule und Haus - Bromme, Traugott, 1802 -1866 (1850)

Handbuch der Naturgeschichte. Zum Gebrauch bei vorlesungen - Burmeister, Hermann, 1807 -1892 (Verlag von Theod. Chr. Friedr. Enslin, 1836)

Handbuch der praktischen Botanik : enthaltend die Geschichte, Beschreibung und Anwendung sämmtlicher in Deutschland wildwachsenden und in den Gärten und Gewächshäusern cultivierten Pflanzen - Voigt, F. S. (Friedrich Siegmund), 1781 -1850 (F. Mauke, 1850)

Handbuch der systematischen botanik, mit besonderer berücksichtigung der arzneipflanzen. Bd. 1 - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Handbuch des natürlichen Pflanzensystems nach allen seinen Classen, Ordnungen und Familien : nebst naturgemässer Gruppirung der Gattungen, oder Stamm und Verzweigung des Gewächsreiches : enthaltend eine vollständige Charakteristik und Ausführung der natürlichen Verwandtschaften der Pflanzen in ihrer Richtung aus der Metamorphose und geographischen Verbreitung, wie die fortgebildete Zeit deren Anschauung fordert - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Arnold, 1837)

Handbuch des natürlichen Pflanzensystems nach allen seinen Classen, Ordnungen und Familien : nebst naturgemässer Gruppirung der Gattungen, oder Stamm und Verzweigung des Gewächsreiches : enthaltend eine vollständige Charakteristik und Ausführung der natürlichen Verwandtschaften der Pflanzen in ihrer Richtung aus der Metamorphose und geognostischen Verbreitung, wie die fortgebildete Zeit deren Anschauung fordert - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Arnold, 1850)

Handbuch für botanische Bestimmungsübungen - Niedenzu, Franz, 1857 -1937 (Engelmann, 1895)

Hard times price list for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Botanical Nursery Co, 1921)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2009)

Hardy ferns & flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1901)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1890)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1898)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1901)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1904)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1908)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1910)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1912)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1913)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1915)

Hardy ferns and flowers, roses, over 60 kinds of lilies : bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Southwick Nurseries, 1982)

Hardy ferns and flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1899)

Hardy ferns and flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1898)

Hardy ferns and flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1897)

Hardy ferns and flowers : Southwick Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1904)

Hardy flowers. Descriptions of upwards of thirteen hundred of the most ornamental species, with directions for their arrangement, culture, etc. ... - Robinson, W. (William), 1838 -1935 (Macmillan, 1878)

Hardy garden flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knickerbocker Nurseries, 1916)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Firm, 1926)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1929)

Hardy ornamentals : trees, plants bulbs ferns shrubs, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1899)

Hardy ornamentals trees plants bulbs shrubs ferns vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1900)

Hardy perennial plants : season 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Perennial Gardens, 1959)

Hardy plants : a complete collection : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1926)

Hardy plants : a complete collection : 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1927)

Hardy plants : a complete collection, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1929)

Hardy plants : a complete collection, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1930)

Hardy plants for cottage gardens - Albee, Helen Rickey, 1864 -1939 (H. Holt and company, 1910)

Hardy plants, rock plants, dwarf and slow growing evergreens, trees & shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George L. Ehrle, 1934)

Hardy trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1910)

Hardy trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1919)

Hardy trees, shrubs, vines, roses, plants and their uses : spring 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries Co, 1914)

[Harlan P. Kelsey (Firm) materials] - Harlan P. Kelsey (Firm) (1885)

Harper's guide to wild flowers - Creevey, Caroline A. Stickney, 1843 -1920 (Harper, 1912)

Henderson's autumn catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1911)

Henderson's autumn catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1914)

Henderson's autumn catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1906)

Henderson's autumn catalogue : 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1905)

Henderson's autumn catalogue : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1907)

Henderson's autumn catalogue : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1908)

Henderson's autumn catalogue : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1909)

Henderson's autumn catalogue : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1913)

Henderson's autumn catalogue : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1916)

Henderson's autumn catalogue : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1910)

Henderson's autumn catalogue : 1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1912)

Henderson's garden guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1913)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1890)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1910)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & company, 1910)

Henderson's Handbook of plants - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1881)

Herbaceous perennials, rock plants, and hardy vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1930)

Herbaceous perennials, rock plants, and hardy vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1927)

Das Herbarienbuch : Erklärung des natürlichen Pflanzensystems, systematische Aufzählung, Synonymik und Register der bis jetzt bekannten Pflanzengattungen ... = Repertorium herbarii, sive, Nomenclator generum plantarum systematicus synonymicus et alphabeticus ad usum practicum accommodatus ... - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (In der Arnoldischen Buchh, 1841)

Herbarium Pedemontanum; juxta methodum naturalem dispositum, additis nonnullis stirpibus exoticis ad universos ejusdem methodi ordines exhibendos - Colla, Luigi, 1766 -1848 (Ex Typis Regis, 1833)

Herbier de l'Amateur de Fleurs (1830)

Herbier de l'Amateur de Fleurs (1834)

Herbier de l'Amateur de Fleurs (1835)

Herbier General de l'Amateur (1821)

Histoire des plantes de la Guiane Françoise : rangées suivant la méthode sexuelle, avec plusieurs mémoires sur différens objects intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l'Isle-de-France ... - Aublet, Fusée, 1720 -1778 (P. F. Didot jeune, 1775)

Histoire des plantes de la Guiane Françoise, rangées suivant la méthode sexuelle, avec plusieurs mémoires sur différens objets intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l'Isle-de-France - Aublet, Fusée, 1720 -1778 (P.F. Didot jeune, 1775)

Histoire des plantes de la Guiane Françoise, rangées suivant la méthode sexuelle, avec plusiers mémoires sur différens objets intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l'Isle-de-France ... - Aublet, Fusée, 1720 -1778 (P.F. Didot jeune, 1775)

Histoire des plantes - Baillon, H. (Henri), 1827 -1895 (Librairie Hachette, 1880)

Histoire naturelle de Buffon, clasée par ordres, genres et espèces, d'après le système de Linné, avec les caractères génériques et la nomenclature Linnéenne - Buffon, Georges Louis Leclerc, comte de, 1707 -1788 (Chez Deterville, 1803)

Histoire naturelle des lépidoptères exotiques - Lucas, Pierre Hippolyte, 1814 -1899 (Pauquet, editeurs, 1835)

Histoire naturelle des lépidoptères exotiques - Lucas, Pierre Hippolyte, 1814 -1899 (L. De Bure, 1845)

Histoire naturelle des végétaux Phanérogames Phanérogames - Spach, Edouard, 1801 -1879 (Librairie encyclopédique de Roret, 1835)

Histoire naturelle des végétaux Phanérogames Phanérogames - Spach, Edouard, 1801 -1879 (Librairie encyclopédique de Roret, 1848)

Histoire physiologique des Plantes d'Europe, ou exposition des phénomènes qu'elles presentent dans les diverses periodes de leur développement - Vaucher, Jean-Pierre, 1763 -1841 (Aurel Freres, 1841)

Historia natural : la creación - Brehm, Alfred Edmund, 1829 -1884 (Montaner y Simón, 1880)

The history of Bucks County, Pennsylvania : from the discovery of the Delaware to the present time - Davis, W. W. H. (William Watts Hart), 1820 -1910 (Democrat Book and Job Office Print, 1876)

History of Delaware County, Pennsylvania : from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science - Delaware County Institute of Science. (H.B. Ashmead, 1862)

History of Delaware County, Pennsylvania : from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science - Delaware County Institute of Science. (Printed by Henry B. Ashmead, 1862)

History of Lancaster County - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (G. Hills, 1844)

History of Lancaster County : to which is prefixed a brief sketch of the early history of Pennsylvania - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (G. Hills, 1844)

History of Lancaster County : to which is prefixed a brief sketch of the early history of Pennsylvania - Rupp, I. Daniel (Israel Daniel), 1803 -1878 (Gilbert Hills, 1844)

History of the Massachusetts horticultural society - Manning, Robert, (The Society, 1880)

History of the Massachusetts Horticultural Society. 1829-1878 - Manning, Robert. (The Society, 1880)

History of the town of Hingham, Massachusetts - Bouvé, Edward Tracy. (Pub. by the town, 1893)

History of the town of Hingham, Massachusetts : in three volumes - Bouvé, Edward Tracy. (Published by the town, 1893)

History of Vermont, natural, civil and statistical, in three parts, with an appendix. 1853 - Thompson, Zadock, 1796 -1856 (The author, 1853)

Home adornment, 1887 : a select catalogue of what is needed for the garden and lawn, containing valuable information relating to seeds, bulbs, and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (V.H. Hallock, Son & Thorpe, 1887)

Horsford's autumn supplement 1914 : hardy plants for cold climates - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1914)

Horsford's autumn supplement for 1908 : hardy plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred'k H. Horsford, 1908)

Horsford's descriptive catalogue of hardy ornamentals herbaceous plants bulbs, ferns shrubs and vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1895)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1901)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1904)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1913)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1909)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1910)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1911)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1912)

Horsford's trade list of bulbs, ferns, orchids, and bog plants for the summer and autumn of '93 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1894)

Horsford's trade list of bulbs, ferns, orchids, and bog plants for the summer and autumn of '93 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1893)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1849)

Hortus Anglicus; or, the modern English garden: containing a familiar description of all the plants which are cultivated in the climate of Great Britain, either for use or ornament, and of a selection from the established favourites of the stove and green-house; arranged according to the system of Linnaeus. With remarks on the properties of the more valuable species - Linné, Carl von, 1707 -1778 (Printed for F. C. & J. Rivington, 1822)

Hortus Boissierianus : énumération des plantes cultivées en 1885 à Valleyres (Vaud) et à la Pierrière (Chambésy près Genève) - Durand, Th. (Théophile), 1855 -1912 (Georg & Cie, 1896)

Hortus cantabrigiensis : or, An accented catalogue of indigenous and exotic plants cultivated in the Cambridge Botanic Garden - Cambridge Botanic Garden. (Longman, 1845)

Hortus Dyckensis; oder, Verzeichniss der in dem botanischen Garten zu Dyck wachsenden Pflanzen - Salm-Reifferscheidt, Joseph, Graf zu, 1773 -1861 (Arnz, 1834)

Hortus dyckensis : ou catalogue des plantes cultivées dans les jardins de Dyck - Salm-Reifferscheidt, Joseph, Graf zu, 1773 -1861 (Arnz, 1834)

Hortus Elginensis, or A catalogue of plants, indigenous and exotic, cultivated in the Elgin Botanic Garden, in the vicinity of the city of New-York : established in 1801 - Hosack, David, 1769 -1835 (Printed by T. & J. Swords, 1811)

Hortus Jamaicensis, or A botanical description (according to the Linnean system) and an account of the virtues, &c., of its indigenous plants hitherto known, as also of the most useful exotics - Lunan, John. (St. Jago de la Vega Gazette, 1814)

Hortus kewensis, or, A catalogue of the plants cultivated in the Royal Botanic Garden at Kew - Aiton, William, 1731 -1793 (Longman, Hurst, Rees, Orme, and Brown, 1811)

Hortus kewensis, or, A catalogue of the plants cultivated in the Royal Botanic Garden at Kew - Aiton, William, 1731 -1793 (Longman, Hurst, Rees, Orme, and Brown, 1813)

Hortus Kewensis, or, A catalogue of the plants cultivated in the Royal Botanic Garden at Kew - Ehret, Georg Dionysius, 1708 -1770 (Printed for George Nicol, Bookseller to his Majesty, 1789)