Gray's lessons in botany and vegetable physiology - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, 1873)

Gray's lessons in botany and vegetable physiology - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor & co, 1868)

Gray's School and field book of botany : consisting of "First lessons in botany" and "Field, forest, and garden botany" : bound in one volume - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, & Company, 1868)

Gray's school and field book of botany : consisting of "Lessons in botany" and "Field, forest, and garden botany," bound in one volume - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, 1881)

Gray's School and field book of botany : consisting of "Lessons in botany" and "Field, forest, and garden botany" bound in one volume - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor & Co, 1873)

Gray's school and field book of botany, consisting of "Lessons in botany" and "Field, forest, and garden botany" bound in one volume - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, 1868)

Gray's school and field book of botany. Consisting of "Lessons in botany" and "Field, forest, and garden botany" bound in one volume. By Asa Gray - Gray, Asa, 1810 -1888 (Ivison, Blakeman, Taylor, & company, 1881)

The Great Lakes botanist : a journal of North American botany - Michigan Botanical Club, (Michigan Botanical Club, 2017)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1975)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1982)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1983)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1987)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1988)

Green scene - Pennsylvania Horticultural Society. (Pennsylvania Horticultural Society, 1997)

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

The Green thumb - Denver Botanic Gardens. (Colorado Forestry and Horticulture Association, 1958)

Ground cover plants : rock-garden plants and herbaceous, perennials, trees, shrubs and evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hugh B. Barclay, 1945)

Growth and differentiation in apricot trees - Reed, Howard S. (Howard Sprague), 1876 -1950 (University of California press, 1924)

Guide for laboratory practice in plant morphology - Rowlee, Willard Winfield, 1861 - (Pub. by the Author, 1894)

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

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 - Britton, Nathaniel Lord, 1859 -1934 (F. A. Stokes, 1899)

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

A guide to the wild flowers - Rowan, Ellis, 1848 -1922 (Stokes, 1899)

A guide to the wild flowers east of the Mississippi and north of Virginia - Taylor, Norman, 1883 -1967 (Greenberg, 1928)

The Gull - Audubon Association of the Pacific. (Golden Gate Audubon Society, 1931)

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

Hamburger Garten- und Blumenzeitung (R. Kittler, 1855)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1878)

Hamburger Garten- und Blumenzeitung (R. Kittler, 1880)

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

Hand-book of trees and hardy plants. 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1917)

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 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)

Handbook of plant dissection - Coulter, John Merle, 1851 -1928 (Holt, 1886)

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

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)

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

Handy book of ornamental conifers of rhododendrons and other American flowering shrubs suitable for the climate and soils of Britain - Fraser, Hugh, botanist. (W. Blackwood and sons, 1875)

Hardy American ornamental plants for immediate effects - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1934)

Hardy American ornamental plants for immediate effects : fall 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Hardy American ornamental plants for immediate effects : spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Hardy Bryan Croom and John Torrey correspondence, 1834-1837 - Croom, Hardy Bryan, 1798 -1837 (1836)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2012)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2014)

Hardy ferns and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kenneth E. Gillett, 1932)

Hardy ferns and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kenneth E. Gillett, 1929)

Hardy ferns and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kenneth E. Gillett, 1930)