Perennials and rock plants for your pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Andrew Simon, 1934)

Perennials, flowering shrubs, rock plants, evergreens : 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1926)

Perennials, rock plants, flowering shrubs, evergreens : 1927 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1927)

Perennials, rock plants, flowering shrubs, evergreens : 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1928)

Perennials, rock plants, flowering shrubs, evergreens, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1929)

Perennials, rock plants, roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Somerset Rose Nursery, Incorporated, 1933)

Perennials, rock-plants, shrubs, evergreens, roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Turner Bros. Nursery, 1938)

Perennials, rock-plants, shrubs, evergreens, roses, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Turner Bros. Nursery, 1937)

Perennials, roses, shrubs, evergreens, dahlias - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William Turner's Sons, 1932)

The perfect garden, how to keep it beautiful and fruitful, with practical hints on eonomical management and the culture of all the principal flowers, fruits, and vegetables - Wright, Walter P. (Walter Page), 1864 -1940 (J. B. Lippincott company; [etc., etc.], 1908)

Perkie wild flowers for your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ivy Hill Forest, 1957)

Peter D. Knieskern and John Torrey correspondence, 1836-1858 - Knieskern, Peter D., 1798 -1871 (1843)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1907)

Phenological notes for 1892-3 - Missouri Botanical Garden. (1894)

PHS news - Pennsylvania Horticultural Society. (The Society, 1971)

Phytogeographic survey of North America. A consideration of the phytogeography of the North American continent, including Mexico, Central America and the West Indies, together with the evolution of North American plant distribution - Harshberger, John W. (John William), 1869 -1929 (W. Engelmann, 1911)

Phytogeography of Nebraska. 1. General survey by Roscoe Pound and Frederic E. Clements - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Published by the Seminar, 1900)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1952)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1972)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1981)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1982)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1983)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1984)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1985)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1996)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1997)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1998)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 2010)

Phytoneuron (Guy L. Nesom, 2014)

Phytoneuron (Guy L. Nesom, 2016)

Phytoneuron (Guy L. Nesom, 2015)

Phytoneuron (Guy L. Nesom, 2017)

Phytoneuron (Guy L. Nesom, 2019)

Phytoneuron (Guy L. Nesom, 2020)

The Pine barrens of New Jersey : September bulletin, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Bassett, 1929)

Pitzonka's high quality pansies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1950)

Pitzonka's high quality pansies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1949)

Pitzonka's pansies : fall 1955, spring 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm and Nursery, 1955)

Pitzonka's Pansies : fall 1957 - spring 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm and Nursery, 1957)

Pitzonka's perennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1947)

Planning and planting for the home beautiful - Fargo, Clarence B. (Clarence Brinton), 1879 -1976 (Printed by Clarence B. Fargo, 1925)

Planning and planting service by Turner Bros. Nursery, West Long Branch, N.J - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William Turner's Sons, 1939)

Plant and seed list for fall 1930 - spring 1931 : retail only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.H. Snowberger, 1930)

Plant and seed list for fall of 1929 and spring of 1930 : retail only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.H. Snowberger, 1929)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co., Ltd, 1909)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1900)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare Co., Inc, 1921)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1912)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare co., inc, 1921)

Plant life of Alabama : an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown Printing Co, 1901)

Plant life of Alabama, an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown printing co, 1901)

Plant life of Alabama. An account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state. Prepared in cooperationwith the Geological Survey of Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (Govt. Print. Off, 1901)

The plant life of Maryland - Shreve, Forrest, 1878 -1950 (Johns Hopkins Press, 1910)

Plant list, 1932-1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Anthon, 1932)

Plant list, 1933-1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Anthon, 1933)

Plant list : chrysanthemums, annuals, perennials, vegetable plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mary A. Scott, 1933)

Plant list of Waterloo County - Montgomery, F. H. (Frederick Howard), 1902 - (1943)

Plant Pitzonka's perennial flowers to add color and gaiety to your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1944)

The plant societies of Chicago and its vicinity - Cowles, Henry Chandler, 1869 -1939 (The Geographic Society of Chicago, 1901)

The Plant world - Plant World Association. (Plant World Association [etc.], 1897)

The Plant world - Plant World Association. (Plant World Association [etc.], 1917)

Les plantes des montagnes et des rochers, leur acclimatation et leur culture dans les jardins - Correvon, Henry 1854 -1939 (L'auteur; [etc., etc.], 1914)

Planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waynesboro Nurseries, Inc, 1942)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1946)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1947)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1949)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1953)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1955)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1962)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1968)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1969)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1971)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1980)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1986)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1988)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1989)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1990)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1991)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1992)

Plants [and] bulbs for home [and] garden, 1852-1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Valentin Burgevin, Inc, 1932)

Plants and bulbs for the home and garden : 1931 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Valentin Burgevin, Inc, 1931)

Plants for the garden and rock-garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lowthorpe School, 1924)

Plants of Iowa; a preliminary list of the native and introduced plants of the state, not under cultivation - Greene, Wesley. (Bishard brothers, printers, 1907)

The plants of Michigan; simple keys for the identification of the native seed plants of the state - Gleason, Henry A. (Henry Allan), 1882 -1975 (G. Wahr, 1918)

Plants of Mississippi : a list of flowering plants and ferns - Lowe, E. N. (Ephraim Noble), 1864 -1933 (Mississippi State Geological Survey, 1921)

Plants of Monroe County, New York, and adjacent territory - Beckwith, Florence. (1896)

Plantsman - New Hampshire Plant Growers' Association. (1995)

A plea for hardy plants, with suggestions for effective arrangement - Elliott, J. Wilkinson. (Doubleday, Page & Company, 1902)

The Plough, the loom, and the anvil (J.S. Skinner & Son], 1848)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1887)

Portland Seed Company's autumn catalog [of] trees, roses, bulbs, plants : fall 1916-spring 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Company, 1916)

Portland Seed Company's autumn catalog [of] trees, roses, bulbs, plants : fall 1917-spring 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1917)

Portland Seed Company's complete catalog and seed annual for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1921)

Portland Seed Company's complete seed annual for 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1915)

Portland Seed Company's complete seed annual for 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Company, 1916)

Portland Seed Company's complete seed annual for 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1917)

Portland Seed Company's complete seed annual for 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1918)

Portland Seed Company's complete seed annual for 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1920)

Pot grown rock plants and alpines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1932)

Potted rock plants [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1930)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1957)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1959)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1954)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1952)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1955)

The Potters of Baraboo : the mark of good taste - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Potters of Baraboo, 1953)

The practical fruit, flower and vegetable gardener's companion, with a calendar - Pardee, R. G. (Richard Gay), 1811 -1869 (C. M. Saxton and co, 1855)

The practical fruit, flower and vegetable gardener's companion, with a calendar - Emerson, G. (Gouverneur), 1796 -1874 (C. M. Saxton & co, 1855)

The practical fruit, flower and vegetable gardener's companion with calendar - Pardee, R. G. (Richard Gay), 1811 -1869 (C.M. Saxton and Co, 1855)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (J.B. Lippincott company, 1909)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (Lippincott, 1909)

A practical handbook of trees, shrubs, vines and herbaceous perennials - Kirkegaard, John (The Bullard company, 1912)

A practical handbook of trees, shrubs, vines and herbaceous perennials - Kirkegaard, John (Williams Bookstores Co, 1916)

A practical handbook of trees, shrubs, vines and herbaceous perennials. Hardy and ornamental varieties, their characteristics, uses and treatment - Kirkegaard, John (Williams Bookstores Co, 1916)

Practical landscape gardening : the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, architectural features of the garden, rose gardens and hardy borders, wild gardens and rock gardens, planting plans and planting lists - Cridland, Robert B. (A.T. De La Mare Company, inc, 1916)

Practical landscape gardening; the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, architectural features of the garden, rose gardens and hardy borders, wild gardens and rock gardens, planting plans and planting lists - Cridland, Robert B. (A.T. De La Mare Company, inc, 1918)

The preferred stock for the trade : fall 1931 - spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1931)