The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1951)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1960)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1963)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1967)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1971)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1976)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1978)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1981)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1983)

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1985)

Green thumb newsletter - Denver Botanic Gardens. (Denver Botanic Gardens, 1981)

Green thumb newsletter - Denver Botanic Gardens. (Denver Botanic Gardens, 1982)

Grevillea - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Williams and Norgate, 1882)

Grønland-Expedition der Gesellschaft für Erdkunde zu Berlin, 1891-1893 - VanHöffen, Ernst, 1858 -1919 (W.H. Kühl, 1897)

Die Grossschmetterlinge der Erde : eine systematische Bearbeitung der bis jetzt bekannten Grossschmetterlinge - Seitz, Adalbert, 1860 -1938 (Verlag des Seitzschen Werkes (Alfred Kernen), 1907)

Ground cover, cut flower and rockery perennials : spring-fall, list no. 17 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old-Fashioned Gardens, 1937)

Grundriss der Kryptogamen-Kunde - Körber, Gustav Wilhelm, 1817 -1885 (Ed. Trewendt, 1848)

Grundzüge der Pflanzenverbreitung auf der iberischen Halbinsel - Willkomm, Moritz, 1821 -1895 (W. Engelmann, 1896)

Grundzüge der Pflanzenverbreitung in Chile - Reiche, Karl Friedrich, 1860 -1929 (W. Engelmann, 1907)

Grundzüge der Pflanzenverbreitung in den Karpathen - Pax, Ferdinand, 1858 -1942 (W. Engelmann, 1898)

Guide du botaniste dans les environs de Maestricht; ou, Indication des phanérogames et des cryptogames vasculaires croissant spontanément dans ces environs - Dumoulin, L. J. G. (C. Hollman, 1868)

Guide du botaniste dans le canton de Fribourg : contribution à l'étude de la flore suisse - Castella, François, 1850 -1913 (Librairie de l'Université, 1891)

Le guide du botaniste herborisant : conseils sur la récolte des plantes, la préparation des herbiers, l'exploration des stations de plantes phanérogames et cryptogames et les herborisations ... - Verlot, Bernard, 1836 -1897 (J. B. Baillière, 1865)

Guide du botaniste sur le Grand St-Bernard - Tissière, P. G. (Pierre Germain), 1828 -1868 (Impr. Dulex-Ansermoz, 1868)

Guide to California insects - Woodworth, C. W. (Charles William), 1865 -1940 (The Law press, 1913)

Guide to the insects of Connecticut - Johannsen, O. A. (Oskar Augustus), 1870 -1961 (Geological and Natural History Survey, 1916)

Guide to the insects of Connecticut - Wheeler, William Morton, 1865 -1937 (Printed for The State Geological and Natural History Survey, 1916)

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

Guide to the study of common plants. An introduction to botany - Spalding, Volney M. (Volney Morgan), 1849 -1918 (D. C. Heath, 1895)

A guide to the wild flowers - Rowan, Ellis, 1848 -1922 (McLelland, Goodchild & Steward, 1899)

Guideline for wetland establishment on reclaimed oil sands leases - Alberta. Alberta Environment. Environmental Services. (Alberta Environment, Environmental Service, 2000)

The gypsy moth. Porthetria dispar (Linn.). A report of the work of destroying the insect in the commonwealth of Massachusetts, together with an account of its history and habits both in Massachusetts and Europe - Fernald, C. H. (Charles Henry), 1838 -1921 (Wright & Potter Printing Co, 1896)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1895)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1898)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1908)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1883)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1888)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1894)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1897)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1899)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1904)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1909)

[H. Cannell & Sons materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H. Cannell & Sons, 1912)

Haandbog i den danske flora - Lange, Johan, 1818 -1898 (C.A. Reitzel, 1851)

Haandbog i den danske flora - Lange, Johan, 1818 -1898 (C.A. Reitzels forlag, 1856)

Haandbog i den danske flora - Lange, Johan, 1818 -1898 (C.A. Reitzels forlag, 1864)

Habitat selection by Columbian sharp-tailed grouse in west-central Idaho - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Boise District, 1987)

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

Hallauer's hardy herbaceous and alpine plants, dwarf shrubs and bulbs for the rockery, home grounds or cut flowers : spring and fall 1942, 27th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.A. Hallauer, 1942)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1879)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1881)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1890)

Hand book and catalogue of pot grown rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1948)

Hand-book of Indian flora; being a guide to all the flowering plants hitherto described as indigenous to the continent of India - Drury, Herber, 1819 -1872 (Trabancore Sircar Press, 1866)

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)

Hand-list of trees and shrubs, excluding Coniferae, grown in Arboretum - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1902)

Handbok i Skandinaviens flora : innefattande sveriges och norges växter, till och med mossorna - Hartman, Carl Johan, 1790 -1849 (Z. Haeggström, 1864)

Handbook and catalog of pot grown rock plants for 1950 and 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1950)

Handbook of Australian fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Williams and Norgate, 1892)

Handbook of British fungi : with full descriptions of all the species, and illustrations of the genera - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Macmillan, 1871)

Handbook of British fungi : with full descriptions of all the species, and illustrations of the genera - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Macmillan and Co, 1871)

Handbook of British fungi, with full descriptions of all the species, and illustrations of the genera - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Macmillan and co, 1871)

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, 1908)

Handbook of hardy herbaceous and alpine flowers - Sutherland, William. (Blackwood, 1871)

Handbook of hardy trees, shrubs, and herbaceous plants. Based on the French work of Messrs. Decaisne and Naudin entitled 'Manuel de l'amateur des jardins,' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Estes & Lauriat, 1873)

Handbook of hardy trees, shrubs, and herbaceous plants : containing descriptions, native countries, etc. of a selection of the best species in cultivation, together with cultural details, comparative hardiness, suitability for different situations, etc. : based on the French work of Messrs. Decaisne and Naudin entitled 'Manuel de l'amateur des jardins, ' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Longmans, Green, 1873)

Handbook of plants and general horticulture - Henderson, Peter. (1890)

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 British flora : a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (Reeve, 1858)

Handbook of the British flora : a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles : for the use of beginners and amateurs - Hooker, Joseph Dalton, 1817 -1911 (L. Reeves, 1887)

Handbook of the British flora, a description of the flowering plants and ferns indigenous to or naturalised in the British Isles. For use of beginners and amateurs - Hooker, Joseph Dalton, 1817 -1911 (L. Reeve & co, 1900)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalised in, the British Isles - Hooker, Joseph Dalton, 1817 -1911 (L. Reeve & co, 1892)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve, 1865)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (L. Reeve, 1858)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (L. Reeve, 1865)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalised in the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve, 1908)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles. For the use of beginners and amateurs. By George Bentham - Hooker, Joseph Dalton, 1817 -1911 (L. Reeve & Co, 1920)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalised in, the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve & Co., ltd, 1918)

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 New Zealand flora : a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, and Macquarrie's islands - Hooker, Joseph Dalton, 1817 -1911 (Reeve & Co, 1867)

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