The pinetum: being a synopsis of all the coniferous plants at present known, with descriptions, history and synonyms, and a comprehensive systematic index - Gordon, George, 1806 -1879 (H.G. Bohn [etc.], 1880)

The pinetum Britannicum : a descriptive account of hardy coniferous trees cultivated in Great Britain - Ravenscroft, Edward, 1816 -1890 (W. Blackwood & Sons, 1884)

Pinophyta (Gymnosperms) of New York State - Cope, Edward A., 1948 - (University of the State of New York, the State Education Dept, 1990)

P.J. Berckmans Co - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1912)

P.J. Berckmans Co - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1911)

P.J. Berckmans Co - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1916)

P.J. Berckmans Co., Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1915)

P.J. Berckmans Co., Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1913)

P.J. Berckmans Co., Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1914)

P.J. Berckmans Co. Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1917)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1917)

Plant introductions - United States. Office of Foreign Plant Introduction. (Office of Foreign Seed and Plant Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1933)

Plant introductions - United States. Office of Foreign Plant Introduction. (Office of Foreign Seed and Plant Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1934)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1923)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1929)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1934)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1951)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1968)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1969)

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)

Plant lists : China - Metcalf, Franklin P. (Franklin Post), 1892 -1955 (1924)

The Plant world - Plant World Association. (Plant World Association [etc.], 1916)

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

Plantae preissianae sive enumeratio plantarum quas in australasia occidentali et meridionali-occidentali annis 1838-1841 collegit Ludovicus Preiss - Lehmann, Johann Georg Christian, 1792 -1860 (Sumptibus Meissneri, 1844)

Plantae Wilsonianae :an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (The University press, 1916)

Plantae Wilsonianae :an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (The University press, 1917)

Plantae Wilsonianae; an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (University Press, 1916)

Plantae Wilsonianae; an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (University Press, 1917)

Plantarum vascularium genera :secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae - Weidmann. (Libraria Weidmannia, 1836)

The planter's guide for the Southland 1941-1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wight Nurseries, 1941)

The planter's guide for the Southland, 1942-1943 : fruits for food, flowers for courage - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wight Nurseries, 1942)

The planter's guide for the Southland, 1943-1944 : fruits for food, flowers for courage - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wight Nurseries, 1943)

The planter's guide for the Southland, 1944-1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wight Nurseries, 1944)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1948)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1951)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1960)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1963)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1967)

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

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1970)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1977)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1982)

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

Plants in Danger: what do we know? (1986)

A pocket botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms - Lindley, John, 1799 -1865 (J. Andrews, 1840)

Pollen and spore morphology/plant taxonomy; gymnospermae, pteriodophyta, bryophyta (Illustrations) - Erdtman, G. (Gunnar), 1897 -1973 (Almqvist & Wiksell, 1957)

Populäre Botanik oder gemeinfassliche Anleitung zum Studium der Pflanze und des Pflanzenreiches. Zugleich ein Handbuch zum Bestimmen der Pflanzen auf Excursionen - Schmidlin, Eduard, 1808? -1890 (Krais & Hoffmann, 1857)

Practical forestry. A treatise on the propagation, planting, and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd company, 1884)

Practical forestry. A treatise on the propagation, planting and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd Co, 1884)

The practical gardener, and modern horticulturist - McIntosh, Charles, 1794 -1864 (T. Kelly, 1836)

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 hints on planting ornamental trees, with particular reference to coniferae... - Noble, Charles, Nurseryman, (Bradbury and Evans, 1852)

Practical plant propagation; an exposition of the art and science of increasing plants as practiced by the nurseryman, florist and gardener - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare company, inc, 1922)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1894)

Price list - California Nursery Co. (The Nursery, 1910)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1893)

Price list - California Nursery Co. (The Nursery, 1911)

Price list - California Nursery Co. (The Nursery, 1912)

Price list - California Nursery Co. (The Nursery, 1913)

Price list - California Nursery Co. (The Nursery, 1914)

Price list - California Nursery Co. (The Nursery, 1915)

Price list - California Nursery Co. (The Nursery, 1916)

Price list - California Nursery Co. (The Nursery, 1917)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wood-Howell Nurseries, 1934)

Price list 1908-1909 : fruit and ornamental trees evergreens, palms, shrubs, roses etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1908)

Price list 1909-1910 : fruit and ornamental trees evergreens, palms, shrubs, roses etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1909)

Price list : 1911-1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1911)

Price list : 1912-1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1912)

Price list : 1913-1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1913)

Price list : 1914-1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1914)

Price list : 1915-1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1915)

Price list : 1916-1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1916)

Price list : 1917-1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1917)

Price list : 1928 fall, 1929 spring - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairview Evergreen Nurseries, 1928)

Price list : 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Citronelle Nursery and Orchard Co, 1929)

Price list 1929-1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (McKay Nursery and Orchard Co, 1929)

Price list : 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Citronelle Nursery and Orchard Co, 1930)

Price list, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Baker Bros. Nursery, 1931)

Price list, 1948–1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1948)

Price list : 1948 – 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Overlook Nurseries, 1949)

Price list : 1948, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Overlook Nurseries, 1948)

Price list : 1949-50 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Overlook Nurseries, 1949)

Price list, 1950–1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1950)

Price list, 1951-1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1951)

Price list, 1952-1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1952)

Price list : 1953 - 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howard-Hickory Co, 1958)

Price list, 1953-1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1953)

Price list - 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Watkins Nurseries, 1956)

Price list 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Watkins Nurseries, 1958)

Price list and catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Locke's Nursery & Floral Company, 1940)

Price list : [fall 1926-spring 1927] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Overlook Nurseries, 1926)

Price list : fall 1927, spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairview Evergreen Nurseries, 1927)

Price list : fall, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westcott Nursery Company, 1929)

Price list, fall 1953 - spring 1954 : hollies, camellias, azaleas and select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clarendon Gardens Nursery, 1953)

Price list, fall 1954 - spring 1955 : hollies, camellias, azaleas and select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clarendon Gardens Nursery, 1954)

Price list, fall-spring, 1955-1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1955)

Price list for the nursery trade of rare seed : ... season 1932-1933 : no price increase for 1934 crop - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Ellis, 1935)

Price list for the nursery trade of rare seed : unusual, exotic and newly introduced trees, shrubs and evergreens of promise from all parts of the earth, season [1935-36] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Ellis, 1935)

Price list for the nursery trade of rare seed : unusual, exotic and newly introduced trees, shrubs and evergreens of promise from all part sof the earth, season 1932-1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Ellis, 1932)

Price list : hollies, azaleas, camellias and select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clarendon Gardens Nursery, 1957)

Price list of flower, tree, shrub and fruit seeds : 1932-1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1932)

Price list of flower, tree, shrub and fruit seeds : 1934-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Yokohama Nursery Co., Ltd, 1934)

Price list of flower, tree, shrub and fruit seeds : 1934-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1934)

Price list of fruit and ornamental trees, small fruits, evergreens, roses, etc., of the California Nursery Co - California Nursery Co. (The Nursery, 1893)

Price list of fruit and ornamental trees, small fruits, evergreens, roses, etc., of the California Nursery Co - California Nursery Co. (The Nursery, 1915)

Price list of fruit and ornamental trees, small fruits, evergreens, roses, etc., of the California Nursery Co - California Nursery Co. (The Nursery, 1881)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 44 season 1926-1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1926)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 46 season 1927-1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1927)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 48 season 1928-1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1928)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 50 season 1929-1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1929)

Price list of tree and shrub seeds Number 34 Season 1921-1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1921)

Price list of tree and shrub seeds Number 32 1920-1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1920)

Price list of tree and shrub seeds : Number 36, season 1922-1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Company, 1922)

Price list : Offer No. 54, March 15, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 55, April 11, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 56, May 5, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 60, December 6th, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : season 1951-1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Azalea Glen Nurseries, 1951)

Price list : season 1952-1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Azalea Glen Nurseries, 1952)

Price list : season 1953-1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Azalea Glen Nurseries, 1953)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1854)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1855)

Prince's select catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, p©onies, &c. : cultivated at the Linn©an Botanic Garden & Nurseries (founded 1732), Flushing, near New-York - Wm. R. Prince & Co. (s.n, 1863)

Prince's Select Descriptive Catalogue of the Unrivaled Collection of Fruit & Ornamental Tree and Shrubs, Vines, Creepers, Paeonies, &c., Cultivated at the Linnaean Botanic Garden and Nurseries, Flushing, Near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1857)

Prince’s select catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, pæonies, &c. : cultivated at the Linnæan Botanic Garden & Nurseries (founded 1732), Flushing, near New-York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1863)

Prince’s select descriptive catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, pæonies, &c. : cultivated at the Linnæan Botanic Garden & Nurseries, Flushing, near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1860)

The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1915)

The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1916)

Principles of scientific botany, or, Botany as an inductive science - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Longman, Brown, Green, and Longmans, 1849)

Principles of scientific botany, or, Botany as an inductive science - Lankester, Edwin, 1814 -1874 (Printed for Longman, Brown, Green, and Longmans, 1849)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1911)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1887)

Proceedings of the ... annual meeting of the Florida State Horticultural Society - Florida State Horticultural Society. Meeting. (The Society, 1910)

Proceedings of the ... annual meeting of the Florida State Horticultural Society - Florida State Horticultural Society. Meeting. (The Society, 1915)

Proceedings of the Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1874)