Guide to the autumn flowers of Minnesota, field and garden - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University of Minnesota, 1913)

Guide to the Economic Museum of the New York Botanical Garden - Rusby, Henry Hurd, 1855 -1940 (1921)

A guide to the natural history of the Isle of Wight : a series of contributions by specialists relating to the various branches of natural history and kindred subjects - Morey, Frank, 1858 -1925 (The County Press, 1909)

Haliburton flora : an annotated list of the vascular plants of the County of Haliburton, Ontario - Royal Ontario Museum. (Royal Ontario Museum, 1991)

Hand-list of Coniferae : grown in the Royal botanic gardens - Royal Botanic Gardens, Kew. (Printed for H. M. Stationery off. by Darling & son, Ltd, 1903)

Hand-list of herbaceous plants cultivated in the Royal Botanic Gardens (Printed for H. M. Stationery Off. by Darling, 1902)

Handbook of flower pollination : based upon Hermann Müller's work ʻThe fertilisation of flowers by insectsʼ - Knuth, Paul, 1854 -1899 (Clarendon Press, 1906)

Handbook of flower pollination based upon Hermann Müller's work The fertilisation of flowers by insects - Knuth, Paul, 1854 -1899 (Clarendon press, 1906)

Handbook of flower pollination based upon Hermann Müller's work 'The fertilisation of flowers by insects' - Knuth, Paul, 1854 -1899 (Clarendon Press, 1906)

Handbook of flower pollination based upon Hermann Müller's work The fertilisation of flowers by insects - Knuth, Paul, 1854 -1899 (Clarendon press, 1909)

A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Macmillan & Co, 1895)

A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Swan, 1904)

Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania; all of New Jersey except the northern counties; and New Castle County, Delaware, with keys for identification of species - Brown, Stewardson, 1867 -1921 (Philadelphia Botanical Club, 1905)

Handbook of the wild and cultivated flowering plants, by Chester Arthur Darling... - Darling, Chester Arthur. (The Mason-Henry press, 1912)

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

Handbuch der Botanik - Schenk, A. (August), 1815 -1891 (E. Trewendt, 1879)

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

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

Handleiding tot de kennis der flora van Nederlandsch Indië : Beschrijving van de families en geslachten der Nederl. Indische phanerogamen - Boerlage, Jacob Gijsbert, 1849 -1900 (E.J. Brill, 1891)

Handwörterbuch der naturwissenschaften - Verworn, Max, 1863 -1921 (G. Fischer, 1912)

Hayward's Botanist's pocket-book; containing the chief characteristics of British plants; with botanical name, common name, soil or situation, colour, growth, and time of flowering of every plant, arranged under its own order - Druce, George Claridge, 1850 -1932 (G. Bell, 1930)

he bei mu lan wei chang zhi wu zhi 河北木兰围场植物志 - Zhao, Jiancheng & Kong Zhaopu 赵建成, 孔照普 (ke xue chu ban she科学出版社, 2008)

he bei yuan chan ji xi xian zai pei zhi wu ming lu - Beijing da xue. Sheng wu xi.

he nan jing ji zhi wu zhi 河南经济植物志 - Shi, Huamin & Zhang Mingzhe 时华民 & 张铭哲 (he nan ren min chu ban she河南人民出版社, 1963)

he nan xi jian tian jian za cao tu shuo - he nan nong xue yuan (he nan ren min chu ban she, 1959)

Hedwigia (Verlag und Druck von C. Heinrich, 1878)

Die Heimat - Verein Zur Pflege Der Natur- Und Landeskunde In Nordelbingen (Husum Druck- und Verlagsgesellschaft, 1896)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1891)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1898)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1906)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1910)

Herbals, their origin and evolutiion; a chapter in the history of botany, 1470-1670 - Arber, Agnes Robertson, 1879 -1960 (University Press, 1912)

Herbarium Musei Fennici : enumeratio plantarum Musei Fennici - Helsingin yliopisto. Kasvimuseo. (Ex officina typographica H.J. Simelii, 1889)

Herbarium : Organ zur Förderung des Austausches wissenschaftlicher Exsiccatensammlungen (Theodor Oswald Weigel, 1908)

Hill prairies of Illinois - Illinois. Natural History Survey Division (1955)

A history of British butterflies - Morris, F. O. (Francis Orpen), 1810 -1893 (George Bell & Son, 1876)

A history of Hampshire and the Isle of Wight - Doubleday, Herbert Arthur, 1867 -1941 ([Constable], 1900)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1912)

A history of the fishes of the British Islands - Couch, Jonathan, 1789 -1870 (G. Bell, 1877)

Hoffmann-Dennert botanischer Bilderatlas, nach dem naturlichen Pflanzensystem - Dennert, Eberhard, 1861 -1942 (Schweizerbart, 1911)

Honey plants of California - Richter, M. C. (Max Clemens), 1884 - (Agricultural Experiment Station, 1911)

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)

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

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)

huang tu gao yuan zhi wu zhi - Fu, Kun-tsun (ke xue ji shu wen xian chu ban she, 1989)

huang tu gao yuan zhi wu zhi - Xi bei zhi wu yan jiu suo 西北植物研究所 (ke xue chu ban she, 2000)

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

Illinois Natural History Survey bulletin - Illinois. Natural History Survey Division (The Survey, 1987)

Illinois Natural History Survey bulletin - Illinois. Natural History Survey Division (The Survey, 2007)

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

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

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's Sons, 1896)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1913)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1898)

An illustrated flora of the Pacific States: Washington, Oregon, and California - Abrams, Le Roy, 1874 -1956 (Stanford University Press, 1960)

An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language - Stevens, George T. (George Thomas), 1832 -1921 (Dodd, Mead and company, 1910)

Illustrations of Indian botany :or figures illustrative of each of the natural orders of Indian plants, described in the author's prodromus florae peninsulae Indiae orientalis - Wight, Robert, 1796 -1872 (published by J. B. Pharoah for the author, 1850)

Illustrations of the principal natural orders of the vegetable kingdom - Oliver, Daniel, 1830 -1916 (Chapman and Hall, 193 Piccadilly, 1874)

Illustrierte Flora von Nord- und Mittel-Deutschland, mit einer Einführung in die Botanik - Potonié, H. (Henry), 1857 -1913 (J. Springer, 1889)