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

Hortus Cliffortianus : plantas exhibens quas in hortis tam vivis quam siccis, Hartecampi in Hollandia, coluit ... Georgius Clifford ... reductis varietatibus ad species, speciebus ad genera, generibus ad classes, adjectis locis plantarum natalibus differentiisque specierum. Cum tabulis aeneis - Linné, Carl von, 1707 -1778 ([s.n.], 1737)

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 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 - Ehret, Georg Dionysius, 1708 -1770 (Printed for George Nicol, Bookseller to his Majesty, 1789)

Hortus lignosus londinensis: or, A catalogue of all the ligneous plants, indigenous and foreign, hardy and half-hardy, cultivated in the gardens and grounds in the neighbourhood of London: with all their synonymes, scientific and popular, including their French, German, and Italian names; and with their native country, habit, habitation in the garden, etc. To which are added the prices of hardy trees and shrubs in the principal nurseries of London and Edinburgh, and at Bollwyller in France, and in Hamburg - Loudon, J. C. (John Claudius), 1783 -1843 (The author, 1838)

Hortus Marybonensis, or, A catalogue of hardy herbaceous plants, deciduous & evergreen shrubs, forest & fruit trees, to which is added, a list of aquatic and bog plants - Jenkins, Thomas. (Printed for and sold by the proprietor, 1819)

Hortus Mauritianus :ou enumeration des plantes, exotiques et indigenes, qui croissent a l'Ile Maurice, disposees d'apres la methode naturelle - Bojer, W., 1797 -1858 (Imprimerie d'Aimé Mamarot et Compagnie, 1837)

Hortus medicus Edinburgensis, or, A catalogue of the plants in the Physical Garden at Edinburgh : containing their most proper Latin and English names; with an English alphabetical index - Sutherland, James (printed by the heir of Andrew Anderson, and to be sold by Mr. Henry Ferguson seed-merchant, at the head of Black Friar-Wynd, and at the Physical Garden by the author, 1683)

Hortus Mortolensis : enumeratio plantarum in Horto Mortolensi cultarum = Alphabetical catalogue of plants growing in the garden of the late Sir Thomas Hanbury ... at La Mortola, Ventimiglia, Italy - Berger, Alwin, 1871 -1931 (West, Newman, 1912)

Hortus Nymphenburgensis, seu, Enumeratio plantarum in Horto Regio Nymphenburgensi cultarum - Sterler, A. (Alois), 1787 -1831 ([publisher not identified], 1821)

Hortus suburbanus calcuttensis. A catalogue of the plants which have been cultivated in the Hon. East India company’s botanical garden, Calcutta, and in the Serampore botanical garden ... from the beginning of both establishments (1786 and 1800) to the end of August 1841 ... - Voigt, J. O. (Jahann Otto), 1798 -1843 (Bishop's College Press, 1845)

Hortus suburbanus Calcuttensis; A catalogue of the plants which have been cultivated in the Hon. East India Company's botanical garden, Calcutta, and in the Serampore botanical garden - Voigt, J. O. (Jahann Otto), 1798 -1843 (Bishop's College Press, 1845)

Hortus suburbanus Londinensis, or, A catalogue of plants cultivated in the neighborhood of London : arranged according to the Linnean system, with the addition of the natural orders to which they belong, references to books where they are described, their native places of growth, when introduced, time of flowering, and reference to figures - Sweet, Robert, 1783 -1835 (Printed for James Ridgway, 1818)

Hortus woburnensis; a descriptive catalogue of upwards of six thousand ornamental plants cultivated at Woburn Abbey ... - Bedford, John Russell, Duke of, 1766 -1839 (J. Ridgway, 1833)

Hortvs medicvs et philosophicvs : in qvo plvrimarvm stirpivm breves descriptiones, novæ icones non paucæ, indicationes locorum natalium, observationes de cultura earum peculiares, atque insuper nonnulla remedia euporista, nec non philologica quædam continentur - Camerarius, Joachim, 1534 -1598 (Impressum ... apud Iohannem Feyerabend, 1588)

Hosea Waterer Golden Anniversary, 1892-1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hosea Waterer, 1942)

A host index of Mississippi plant diseases - United States. Plant Disease Survey. (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1947)

Host plants of leaf beetle species occurring in the United States and Canada : (Coleoptera: Megalopodidae, Orsodacnidae, Chrysomelidae, excluding Bruchinae) - Coleopterists Society. (Coleopterists Society, 2004)

House, garden and field, a collection of short nature studies - Miall, L. C. (Louis Compton), 1842 -1921 (Arnold, 1904)

The house of Rynveld : fall 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1937)

The house of Rynveld : spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1937)

The house of Rynveld : spring 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1938)

The house of Rynveld : spring 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1939)

The house of Rynveld : spring 1941 wholesale catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1941)

Hovey & Co.'s reliable seeds bulbs : plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hovey & Co, 1893)

How plants grow... - Gray, Asa, 1810 -1888 (A. Miller, 1858)

How plants grow a simple introduction to structural botany : with a popular flora, or an arrangement and description of common plants, both wild and cultivated : illustrated by 500 wood engravings - Gray, Asa, 1810 -1888 (A. Miller, 1858)

How to find and name wild flowers; being a new method of observing and identifying upwards of 1,200 species of flowering plants in the British isles - Fox, Thomas. (Cassell, 1906)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1937)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1939)

hu bei en shi yao yong zhi wu zhi 湖北恩施药用植物志 - Fang, Zhixian & Liao Chaolin 方志先，廖朝林 (hu bei ke xue ji shu chu ban she湖北科学技术出版社, 2006)

hua bei jing ji zhi wu zhi yao - Cui, Youwen. (zhong guo ke xue yuan chu ban)

Hua dong shui sheng wei guan su zhi wu - Pei, Jian 裴鑑 (zhong guo ke xue yuan chu ban)

huang he zhong you huang tu qu zhi wu ming lu - Zhongguo ke xue yuan. Xi bei sheng wu tu rang yan jiu suo zhi wu zu bian (zhong guo ke xue yuan chu ban)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1887)

Humboldt; Monatsschrift für die gesamten Naturwissenschaften - Damer, Otto, 1839 -1916 (F. Enke, 1882)

Huntington 1929 : catalogue of seeds, plants & bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1929)

Huntington, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1937)

Huntington, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1938)

Huntington, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1939)

Huntington, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1940)

Huntington's, 1933 : rare seeds of alpines, perennials and annuals, hardy herbaceous and selected rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1933)

Huntington's 1942 presentation of fine alpine, perennial and annual seeds, hardy herbaceous plants, new novelties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1942)

Huntington's catalogue, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1935)

Huntington's catalogue, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1936)

Huntington's catalogue of finest Alpine, perennial and selected annual seeds, hardy herbaceous plants, bulbs, shrubs, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1930)

Huntington's catalogue of rare seeds, hardy plants, novelties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1941)

Huntington's list of the best known and most useful seeds of perennial and biennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1926)

Huntington's rare and unusual Alpine, perennial and annual seeds, hardy herbaceous plants, bulbs, and roses, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1931)

Huntington's seeds, bulbs, plants, shrubs, and roses, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1932)

Huntington's seeds of perennial and biennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1927)

Huntington's seeds of perennial and biennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1929)

Huntington's seeds of perennial and biennial plants : list of best known and most useful for your files - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1924)

Huntingtons present their complete list of rare and unusual alpine, perennial and annual seeds, select hardy herbaceous and choice rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1934)

H.W. Buckbee seed and plant guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Buckbee, 1894)

H.W. Buckbee seed and plant guide 1895 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Buckbee, 1895)

Hyde's landscape service for increasing the value and adding to the beauty of your home - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.A. Hyde Co, 1930)

Hymenoptera of America north of Mexico : synoptic catalog - Krombein, Karl V. (U.S. Dept. of Agriculture, 1951)

Hymenoptera of America north of Mexico : synoptic catalog, first supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1958)

Hymenoptera of America north of Mexico : synoptic catalog, second supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1967)

Die hymenopteren Mitteleuropas nach ihren gattungen und zum grossen teil auch nach ihren arten analytisch - Schmiedeknecht, Otto, 1847 -1936 (G. Fischer, 1907)

I västafrikas urskogar : natur- och djurlifsskildringar Från en zoologisk resa I Kamerun - Sjöstedt, Yngve, 1866 - (Fröléen & Comp, 1904)

Icones plantarum formosanarum nec non et contributiones ad floram formosanam; or, Icones of the plants of Formosa, and materials for a flora of the island, based on a study of the collections of the Botanical survey of the Government of Formosa - Taiwan. Shokusankyoku. (Pub. by the Bureau of Productive Industry, Government of Formosa, 1921)

Icones plantarum Formosanarum nec non et contributiones ad floram Formosanam; or, Icones of the plants of Formosa, and materials for a flora of the Island, based on a study of the collections of the Botanical Survey of the Government of Formosa - Hayata, Bunzō, 1874 -1934 (Published by the Bureau of Productive Industries, Government of Formosa, 1911)

Icones plantarum formosanarum nec non et contributiones ad floram formosanam; or, Icones of the plants of Formosa, and materials for a flora of the island, based on a study of the collections of the Botanical survey of the Government of Formosa - Hayata, Bunzō, 1874 -1934 (Pub. by the Bureau of Productive Industry, Government of Formosa, 1911)

Icones plantarum formosanarum nec non et contributiones ad floram formosanam : or, Icones of the plants of Formosa, and materials for a flora of the island, based on a study of the collections of the Botanical survey of the Government of Formosa - Taiwan. Shokusankyoku. (Bureau of Productive Industry, Government of Formosa, 1911)

Icones plantarum or figures, with brief descriptive characters and remarks, of new or rare plants, selected from the author's herbarium - Hooker, Joseph Dalton, 1817 -1911 (Longman, Rees, Orme, Brown, Green, & Longman, etc, 1919)

Icones plantarum or figures, with brief descriptive characters and remarks, of new or rare plants, selected from the author's herbarium - Hooker, Joseph Dalton, 1817 -1911 (Longman, Rees, Orme, Brown, Green, & Longman, etc, 1934)

Icones plantarum Syriæ rariorum : descriptionibus et observationibus illustratæ - Labillardière, Jacques Julien Houton de, 1755 -1834 (Impensis Autoris [etc.], 1809)

Icones stirpium, seu, Plantarum tam exoticarum, quam indigenarum :in gratiam rei herbariae studiosorum in duas partes digestae : cum septem linguarum indicibus, ad diuersarum nationum vsum - Moretus, Jan 1543 -1610 (Ex officina plantiniana :Apud Viduam et Ioannem Moretum, 1591)

Iconographia botanica exotica, sive Hortus botanicus - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (1824)

Iconographia familiarum naturalium regni vegetabilis = Abbildungen der natürlichen Familien des Gewächsreiches : delineata atque adiectis familiarum characteribus adnotationibusque variis tum scientiam tum usum spectantibus exornata - Schnizlein, Adalbert, 1814 -1868 (M. Cohen, 1843)

Iconographia floræ italicæ : ossia, Flora italiana illustrata ... - Crépin, François, 1830 -1903 (Tip. del seminario, 1895)

Iconographic encyclopaedia of science, literature, and art - Baird, Spencer Fullerton, 1823 -1887 (R. Garrigue, 1851)

Iconum botanicarum index locupletissimus = Die Abbildungen sichtbar blühender Pflanzen und Farnkräuter : aus der botanischen und Gartenliteratur des XVIII. und XIX. Jahrhunderts in alphabetischer Folge zusammengestellt - Pritzel, G. A. (Georg August), 1815 -1874 (In Libraria F. Nicolai, 1855)

Iconum botanicarum index locupletissimus. Verzeichniss der Abbildungen sichtbar blühender Pflanzen und Farnkräuter aus der botanischen und Gartenliteratur des XVIII. und XIX. Jahrhunderts in alphabetischer Folge zusammengestellt - Pritzel, G. A. (Georg August), 1815 -1874 (Nicolaische Verlagsbuchh, 1866)

Les îles Canaries. Flore de l'archipel - Proust, Louis, 1878 -1959 (P. Klincksieck, 1908)

Illinois Audubon bulletin - Illinois Audubon Society. (Illinois Audubon Society, 1955)

Illinois wild flowers - Eifert, Virginia Louise Snider, 1911 -1966 (1960)

Illustrated descriptive catalogue of choice hardy perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1893)

Illustrated descriptive catalogue of seeds, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Schlegel & Fottler, 1896)

Illustrated descriptive catalogue of seeds, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Schlegel & Fottler, 1898)

Illustrated descriptive catalogue of seeds, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Schlegel & Fottler, 1897)

Illustrated, descriptive catalogue of tested garden seeds : grown and for sale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. Cook, 1892)

Illustrated, descriptive catalogue of tested garden seeds : grown and for sale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. Cook, 1893)

Illustrated descriptive catalogue of tested garden seeds : grown and for sale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. Cook, 1890)

Illustrated descriptive catalogue of tested garden seeds : grown and for sale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.T. Cook, 1891)

The illustrated dictionary of gardening :a practical and scientific encyclopædia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L.U. Gill, 1884)

The Illustrated dictionary of gardening : a practical and scientific encyclopaedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. Upcott Gill, 1887)

The illustrated dictionary of gardening, a practical and scientific encyclopedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. U. Gill, 1884)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son & Co, 1900)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (Balliére, Tindall & Cox, 1894)

An illustrated dictionary of medicine, biology and allied sciences ... by George M. Gould. 5th ed., with additions and corrections - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son, 1907)

An illustrated dictionary of scientific terms - Rossiter, William, 1897 (G. P. Putnam's Sons, 1878)

An illustrated encyclopaedia of gardening - Wright, Walter P. (Walter Page), 1864 -1940 (J. M. Dent & sons, ltd, 1911)