Herbertia - American Plant Life Society. (American Plant Life Society, 1934)

Herbertia - American Plant Life Society. (American Plant Life Society, 1938)

Herbertia - American Plant Life Society. (American Plant Life Society, 1935)

Herbertia - American Plant Life Society. (American Plant Life Society, 1939)

Herbertia - American Plant Life Society. (American Plant Life Society, 1940)

Herbertia - American Plant Life Society. (American Plant Life Society, 1941)

Herbertia - American Plant Life Society. (American Plant Life Society, 1942)

Herbertia - American Plant Life Society. ([American Plant Life Society], 2004)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1988)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1987)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1985)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1986)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1990)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1984)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1992)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1999)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1998)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1994)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1996)

Herbertia - American Plant Life Society. ([American Plant Life Society], 2002)

Herbier de l'Amateur de Fleurs (1830)

Herbier General de l'Amateur (1847)

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

Histoire naturelle des végétaux Phanérogames Phanérogames - Spach, Edouard, 1801 -1879 (Librairie encyclopédique de Roret, 1846)

Histoire naturelle illustrée: les plantes - Faideau, Ferdinand, 1862 -1930? (Larousse, 1922)

History of the United States Botanic Garden, 1816-1991 - United States. Architect of the Capitol ([U.S. G.P.O.], 1993)

Holland bulbs 1957 : planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1957)

Holland bulbs 1957 : planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kline Trail Nursery, 1957)

Holland bulbs 1957 : planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (B.F. Barr & Son Nurseries, 1957)

Home floriculture; a practical guide to the treatment of flowering and other ornamental plants in the house and garden - Rexford, Eben E. (Eben Eugene), 1848 -1916 (O. Judd company, 1903)

Home floriculture; a familiar guide to the treatment of flowering and other ornamental plants in the house and garden - Rexford, Eben E. (Eben Eugene), 1848 -1916 (Orange Judd company, 1903)

Home floriculture; a practical guide to the treatment of flowering and other ornamental plants in the house and garden - Rexford, Eben E. (Eben Eugene), 1848 -1916 (Orange Judd company, 1916)

Home gardening - Trivedi, Pratibha P. (Indian Council of Agricultural Research, 2010)

The home of heathers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knight and Struck Company, 1914)

Horticulteur belge, journal des jardiniers et amateurs (1834)

Horticulteur belge, journal des jardiniers et amateurs (1833)

The horticultural exhibitors' handbook. A treatise on cultivating, exhibiting, and judging plants, flowers, fruits, and vegetables - Dunn, Malcolm. (W. Blackwood, 1892)

Horticultural guide : autumn 1890 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Currie Bros, 1890)

Horticultural guide : spring 1893 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Currie Bros, 1894)

Horticultural guide : spring 1898 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Currie Bros, 1898)

Horticultural guide : spring 1901 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Currie Bros, 1899)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1904)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1918)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1983)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1985)

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 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 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)

"The house of bulbs" : planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Richard M. Hinz, 1958)

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

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

The house of Rynveld : spring 1940 wholesale catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. Rynveld & Sons, Inc, 1940)

House plants and how to grow them - Barnes, Parker Thayer, 1874 - (1909)

House plants and how to grow them - Barnes, Parker Thayer, 1874 - (Doubleday, Page, 1909)

House plants and how to grow them - Barnes, Parker Thayer, 1874 - (Doubleday, Page, 1914)

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

Hybrid amaryllis - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Middlepen Plantation, 1940)

Hybrid amaryllis - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Middlepen Plantation, 1938)

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)

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)

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