Philosophical notes on botanical subjects - Bonavia, E. (Emanuel), 1829 -1908 (Eyre and Spottiswoode, 1892)

PHS news - Pennsylvania Horticultural Society. (The Society, 1995)

The physiology of flowering - Hillman, William S. (Holt, Rinehart and Winston, 1962)

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1915)

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1916)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 2006)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 2008)

Phytoneuron (Guy L. Nesom, 2012)

Pictorial practical bulb growing; a concise guide to the culture of all the most important bulbous, tuberous, and allied plants - Wright, Horace J. (Horace John), 1868 -1925 (Cassell and company, limited, 1903)

Pitcher & Manda catalogue of flower and vegetable seeds and bulbs for spring planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitcher & Manda, 1895)

Plant-breeding; being five lectures upon the amelioration of domestic plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1895)

Plant-breeding; being five lectures upon the amelioration of domestic plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan and co, 1895)

Plant-breeding; being six lectures upon the amelioration of domestic plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1906)

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 - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare Co., Inc, 1921)

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 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 Form - Bell, Adrian D. (OXFORD UNIVERSITY PRESS, 1991)

Plant guide : Field Museum's Guatemala tour - Clark, Phil ([Field Museum], 1967)

Plant hybridization before Mendel - Mendel, Gregor, 1822 -1884 (Princeton University Press, 1929)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1916)

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, 1942)

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, 1956)

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, 1967)

Plant life - American Plant Life Society. (American Plant Life Society, 1951)

Plant life - American Plant Life Society. (American Plant Life Society, 1952)

Plant life - American Plant Life Society. (American Plant Life Society, 1953)

Plant life - American Plant Life Society. (American Plant Life Society, 1954)

Plant life - American Plant Life Society. (American Plant Life Society, 1955)

Plant life - American Plant Life Society. (American Plant Life Society, 1956)

Plant life - American Plant Life Society. (American Plant Life Society, 1957)

Plant life - American Plant Life Society. (American Plant Life Society, 1958)

Plant life - American Plant Life Society. (American Plant Life Society, 1959)

Plant life - American Plant Life Society. (American Plant Life Society, 1971)

Plant life - American Plant Life Society. (American Plant Life Society, 1973)

Plant life - American Plant Life Society. (American Plant Life Society, 1974)

Plant life - American Plant Life Society. (American Plant Life Society, 1975)

Plant life - American Plant Life Society. (American Plant Life Society, 1976)

Plant life - American Plant Life Society. (American Plant Life Society, 1978)

Plant life - American Plant Life Society. (American Plant Life Society, 1979)

Plant life - American Plant Life Society. (American Plant Life Society, 1980)

Plant life - American Plant Life Society. (American Plant Life Society, 1981)

Plant life - American Plant Life Society. (American Plant Life Society, 1982)

Plant life - American Plant Life Society. (American Plant Life Society, 1983)

Plant lists : Chile, Colombia, Ecuador, and Peru - Rusby, Henry Hurd, 1855 -1940 (1916)

Plant lists : Colombia, Costa Rica, and Venezuela - Pittier, Henri, 1857 -1950 (1888)

Plant lists : Venezuela - Pittier, Henri, 1857 -1950 (1917)

Plant propagation; being a description of the various methods employed by both amateur and professional gardeners. Written and comp. by Walter Davis - Davis, Walter ("The Bazaar, exchange & mart" office, 1922)

Plant propagation; greenhouse and nursery practice - Kains, M. G. (Maurice Grenville), 1868 -1946 (Orange Judd company, 1916)

Plantae Hasslerianae, soit énumération des plantes recoltées au Paraguay par le dr. Emile Hassler ... - Chodat, R. (Robert), 1865 -1934 (Impr. Romet, 1898)

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

Plantas de la Amazonía peruana : clave para identificar las familias de Gymnospermae y Angiospermae - Vásquez Martínez, Rodolfo (Museo de Historia Natural, 2004)